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Full-Text Articles in Biotechnology

A Review On Nanoparticles: Classification And Roles In Plant Systems, Muhammad Junaid Zafar, Muhammad Shafiq, Muhammad Azeem Rana Jun 2026

A Review On Nanoparticles: Classification And Roles In Plant Systems, Muhammad Junaid Zafar, Muhammad Shafiq, Muhammad Azeem Rana

Journal of Bioresource Management

Nanotechnology has been a new paradigm of the twenty-first century with several good breakthroughs. These tiny particles, known for their outstanding qualities, are enjoying an increasing influence in many research fields concerning foodstuff, cosmetics, electronics, and pharmacology. Synthesis of nanoparticles includes utilizing chemical processes with reducing agents, alongside employing physical techniques such as top-down and bottom-up approaches for NP formation. The biological approach, known as green synthesis, utilizes plant extracts to ensure increased safety. Biological methods also involve bacteria and fungi, known as the major sources of nanoparticles. It is acknowledged as the most effective and environmentally conscious approach, attributed …


Antioxidant Enzymes And Osmolyte Accumulation In Okra Cultivars Under Drought Stress, Jawad Ali, Ibadullah Jan, Hidayat Ullah, Muhammad Adnan, Shah Fahad, Hassan Alsberi, Khulud Albalawi, Hakki Akdeniz, Manzoor Ahmmad, Beena Saeed, Noor Us Sabah, Mian Sayed Khan, Abdul Basir, Muhammad Romman, Ayman El Sabagh Dec 2025

Antioxidant Enzymes And Osmolyte Accumulation In Okra Cultivars Under Drought Stress, Jawad Ali, Ibadullah Jan, Hidayat Ullah, Muhammad Adnan, Shah Fahad, Hassan Alsberi, Khulud Albalawi, Hakki Akdeniz, Manzoor Ahmmad, Beena Saeed, Noor Us Sabah, Mian Sayed Khan, Abdul Basir, Muhammad Romman, Ayman El Sabagh

The Philippine Agricultural Scientist

Drought stress brought about by worsening environmental conditions due to climate change has increasingly damaging effects on crop production systems. To mitigate these effects, several physiological and biochemical aspects of plants could be used as markers in breeding for the selection of drought-resistant cultivars. Therefore, this study aimed to evaluate the performance of 8 okra cultivars (Arka Anamika, Punjab Selection, Posaswami, Tulsi, Subz Pari, Super Green, Local Multani, and Green Star) under well-watered (control), mild drought stress, and severe drought stress conditions by irrigating plants at an interval of 3, 6, and 9 d after 30 d of planting. Results …


Agricultural Biotechnology In The Courts: Judicial Opinions And Commentary, Drew L. Kershen Aug 2025

Agricultural Biotechnology In The Courts: Judicial Opinions And Commentary, Drew L. Kershen

Faculty Articles

Seven jurisdictions from around the world have issued judicial opinions that address fundamental issues about the governance and regulatory systems of agricultural biotechnology. This article summarizes these legal proceedings and describes their impact upon agricultural biotechnology. The article then provides a commentary and critique of the legal proceedings and resulting judicial opinions.


Effect Of Different Nutrient Media On Mycelial Growth Of Different Species Of Medicinal Mushroom, Luna Ahmad, Fahed Albiski, Ramzi Murshed, Hijazi Mando, Bssam Al Okla Jun 2025

Effect Of Different Nutrient Media On Mycelial Growth Of Different Species Of Medicinal Mushroom, Luna Ahmad, Fahed Albiski, Ramzi Murshed, Hijazi Mando, Bssam Al Okla

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The research was carried out in 2022 in the National Commission for Biotechnology (NCBT). The aim is studying the mycelium growth of 5 commercial strains of four medicinal mushroom: Ganoderma lucidum (G.l), Agaricus blazei (A.b), Hericium erianaceum (H.e) and Lentinus edodes (Tow strains: strain M3782 (L.e1) and strain straw (L.e2)), sourced of Aloha company of USA on four nutrient growth media: Potato Dextrose Agar (PDA), Malt extract Agar (MEA), Sabouroud Dextrose Agar (SDA) and Corn meal agar (CMA). The following mycelium growth parameters were studied: mycelium height (H), mycelium diameter (D), mycelium density (G), growth rate (GR) and growth coefficient …


Morphoanatomy And Phenoplasticity Of Cardamine Hupingshanensis (Brassicaceae) Under Cadmium Stress, Yafen Han, Florfe M. Acma, Maria Melanie M. Guiang, Chris Rey M. Lituanas, Fulgent P. Coritico, Victor B. Amoroso Mar 2025

Morphoanatomy And Phenoplasticity Of Cardamine Hupingshanensis (Brassicaceae) Under Cadmium Stress, Yafen Han, Florfe M. Acma, Maria Melanie M. Guiang, Chris Rey M. Lituanas, Fulgent P. Coritico, Victor B. Amoroso

The Philippine Agricultural Scientist

Using a soil culture method, this study investigated the morphoanatomical responses and phenotypic plasticity of Cardamine hupingshanensis (Brassicaceae) under different cadmium (Cd) concentrations. Root morphological indices initially increased at low Cd levels but decreased as Cd concentrations rose, exhibiting a low-promoting and high-inhibiting effect. Leaf morphology and biomass peaked at 5 or 10 mg kg-1 Cd before decreasing at higher concentrations but were still significantly higher than the control (P < 0.05). Anatomical structure analysis revealed no significant difference at 5 mg kg-1 Cd; however, at ≥ 100 mg kg-1 Cd, epidermal and spongy tissue thickness differed significantly from the control. Correlation analysis indicated a significant positive correlation between …


An Economic And Production Analysis Of Seaweed Farms In California And The Pacific Northwest, Brian Donovan Jan 2025

An Economic And Production Analysis Of Seaweed Farms In California And The Pacific Northwest, Brian Donovan

Cal Poly Humboldt theses and projects

Since the early 2010s, the seaweed aquaculture industry has steadily expanded in the United States, with states like Alaska, Maine, Hawaii, and Connecticut leading the way in the development of this emerging sector. However, information gaps remain concerning certain aspects of the domestic seaweed aquaculture industry. The purpose of this study was to examine the status of the seaweed aquaculture industry along the West Coast of the United States; specifically in the states of California, Oregon, and Washington. Seaweed farmers in these states were invited to voluntarily complete surveys asking important production, economic, and commercial questions regarding their operations. Data …


Revolutionizing Grapevine Breeding Programs: A Mobile Genome Editing System For Perennial Crops, Bridget Bolt Jan 2025

Revolutionizing Grapevine Breeding Programs: A Mobile Genome Editing System For Perennial Crops, Bridget Bolt

Theses and Dissertations--Plant and Soil Sciences

Grapevine (Vitis vinifera) faces unprecedented challenges from climate change, with up to 90% of current growing regions potentially becoming unsuitable for production within decades. Traditional breeding approaches require 25-30 years for variety development, creating a time constraint incompatible with the pace of environmental change. This research establishes the approach for a novel mobile RNA-based gene editing platform that addresses longstanding bottlenecks in grapevine improvement while preserving cultivar identity and reducing breeding timelines.

This research developed a three-component system for transgene-free gene editing in grapevine. First, a mobile CRISPR/Cas9 system was established using Agrobacterium rhizogenes transformation and the cut-and-dip …


Enhancing The Mechanical Properties Of Sla 3d-Printed Bio-Resin From Linseed Oil Using Cellulose And Lignin Biopolymers, Chukwunonso A. Ikedionu Jan 2025

Enhancing The Mechanical Properties Of Sla 3d-Printed Bio-Resin From Linseed Oil Using Cellulose And Lignin Biopolymers, Chukwunonso A. Ikedionu

College of Graduate Studies: Theses & Dissertations


Abstract

This research explores the development of bio resin from linseed oil by the process of epoxidation and acrylation to produce acrylated epoxidized linseed oil (AELO). Lignin and cellulose biopolymers were added as reinforcement at varying weight fractions of 1 wt.%, 2.5 wt.%, and 5 wt.%, and their mechanical performance was compared against pure AELO. The formulations were printed using an Elegoo SLA 3D printer to create standardized test specimens like tensile bars, compression cylinders, and hardness blocks, which were all prepared according to the ASTM testing standard.

The results indicate that reinforcement effects depend on both filler type and …


Assessment Of Drought Tolerance In Mung Bean [Vigna Radiata (L.) Wilczek] Through Phenology, Growth, Protein Yield, And Cluster Heatmap Analysis, Rafiqul Islam, Jamil Hossain, Shamsul Huda, Mohammad Golam Azam, Faruk Hossain, Aktar Uz Zaman, Safiqul Moula, Nasir Uddin Ahmed, Jamal Hossain, Ayman El Sabagh, Mohammad Sohidul Islum Dec 2024

Assessment Of Drought Tolerance In Mung Bean [Vigna Radiata (L.) Wilczek] Through Phenology, Growth, Protein Yield, And Cluster Heatmap Analysis, Rafiqul Islam, Jamil Hossain, Shamsul Huda, Mohammad Golam Azam, Faruk Hossain, Aktar Uz Zaman, Safiqul Moula, Nasir Uddin Ahmed, Jamal Hossain, Ayman El Sabagh, Mohammad Sohidul Islum

The Philippine Agricultural Scientist

Mung bean [Vigna radiata (L.) Wilczek] cultivation is challenging under the changing climate as less precipitation during the summer season, which is becoming increasingly common, results in soil moisture deficiency and affects production especially at the early growth stages. Hence, this study was conducted to assess the phenology, growth, and protein yield traits of mung bean related to drought tolerance. Eight mung bean genotypes were grown in pots inside a rain-out shelter under well-watered (WW) and water-deficit (WD) conditions. These genotypes included four water stress-tolerant genotypes: G-1 (BARI Mung-8), G-2 (BMX-010015), G-3 (BMX-08010-2), and G-4 (BMX-08009-7), as well as four …


Enhancing Crop Resilience: Physiological And Omics Approaches For Drought And Heat Stress Tolerance In Soybean And Peanut, Jyoti Prasad Kakati Aug 2024

Enhancing Crop Resilience: Physiological And Omics Approaches For Drought And Heat Stress Tolerance In Soybean And Peanut, Jyoti Prasad Kakati

All Dissertations

Soybean and peanut are two major crops globally grown for oil and protein. Climate change-associated factors like drought and increased temperature (heat stress) challenge the global production of soybeans and peanuts. Though the United States is the second-largest producer of soybean and the fourth-largest producer of peanuts, it still faces production constraints associated with drought and heat stresses. In the present study, we have examined the responses of soybean and peanut plants to drought and heat stresses during germination and reproductive phases. We conducted field and controlled environmental studies to elucidate the impact of drought stress on germination and seedling …


Exploring The Coffee Genome: A Comprehensive Analysis Of The Plant-Specific Dof Transcription Factor Gene Family, Humera Amin, Shumaila Dastgir, Numan Ali, Muhammad Shafiq, Muhammad Haseeb, Syed Agha Armaghan Asad Abbas Naqvi, Laiba Sharif, Syeda Shehar Bano Rizvi, Sohaib Ahmad, Farooq Ahmad Jun 2024

Exploring The Coffee Genome: A Comprehensive Analysis Of The Plant-Specific Dof Transcription Factor Gene Family, Humera Amin, Shumaila Dastgir, Numan Ali, Muhammad Shafiq, Muhammad Haseeb, Syed Agha Armaghan Asad Abbas Naqvi, Laiba Sharif, Syeda Shehar Bano Rizvi, Sohaib Ahmad, Farooq Ahmad

Journal of Bioresource Management

Dof (DNA binding with one finger) proteins constitute highly ubiquitous transcription factor gene families that are found across all plant species, playing crucial role in fruit ripening, organ development, and other activities. A comprehensive genome-wide analysis of the coffee genome uncovered 49 CaDof genes, which were described in terms of their gene structures, phylogenetic relationships, subcellular localization, gene duplication, and expression in various plant organs. In Coffea arabica, segmental duplication outnumbered tandem duplication. Expressed sequence tags were used to determine the expression of specific organs in CaDof genes. Most genes showed high expression in fruits at various stages, in …


Construction Of An Array Of Antibody–Gold Nanoparticle Conjugates For Their Comparative Assessment On Multiplex Lateral Flow Test To Detect Mycotoxins, Bilal Javed Nanolab Research Centre, Vinayak Sharma School Of Food Science And Environmental Health, Furong Tian Nanolab Research Centre Mar 2024

Construction Of An Array Of Antibody–Gold Nanoparticle Conjugates For Their Comparative Assessment On Multiplex Lateral Flow Test To Detect Mycotoxins, Bilal Javed Nanolab Research Centre, Vinayak Sharma School Of Food Science And Environmental Health, Furong Tian Nanolab Research Centre

Articles

Bio-functionalized gold nanoparticles with anti-toxin antibody conjugates have unique physical, biochemical, and optical properties that can greatly improve the performance of biochemical assays because they can enhance the signal intensity of analyte, improve signal transduction, have higher sensitivity of analyte detection, and provide simple colorimetric signal readouts. The surface properties of gold nanoparticles, along with various antibody conjugates, play a significant role in terms of functionalizing gold nanoparticles, and the strategy for surface modification is of great significance to the application of gold nanoparticle-mediated biochemical assays. Spherical gold nanoparticles are among the most used reporter molecules in lateral flow assays. …


The Antagonist Effect Of Pichia Kluyveri Against The Aflatoxigenic Aspergillus Flavus, Wafa Masoud Jan 2024

The Antagonist Effect Of Pichia Kluyveri Against The Aflatoxigenic Aspergillus Flavus, Wafa Masoud

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

Aspergillus flavus is one of the main fungi that are known to produce Aflatoxin B1 (AFB1). AFB1 has been detected in many food products and reported to be a carcinogenic. Using a biocontrol agent against A. flavus can safely eliminate or reduce the occurrence of AFB1 in food. Therefore, the effects of four yeast strains of Pichia kluyveri on the growth and spore germination of A. flavus were studied. In addition, the effect of exposure of A. flavus to the yeast’s headspace, as well as the effects of different headspace concentrations of 2-phenyl ethyl acetate and ethyl acetate, on the …


An Rnai-Based Approach To Ips Calligraphus Management: A Promising Strategy For Forest Protection, Mary Wallace Jan 2024

An Rnai-Based Approach To Ips Calligraphus Management: A Promising Strategy For Forest Protection, Mary Wallace

Theses and Dissertations--Entomology

As climate change leads to more frequent and severe extreme weather, host tree stress is increasing the occurrence of large-scale bark beetle outbreaks. One such beetle, Ips calligraphus (Germar), a native bark beetle in the southeastern United States, has traditionally been considered a secondary pest of pine trees. Management has relied on silvicultural practices that enhance forest resilience, enabling host trees to effectively use natural defenses to deter beetle infestation. However, during periods of forest stress caused by storms, droughts, human disturbance, and other factors, beetle outbreaks can cause considerable ecological and economic damage.

Addressing worsening I. calligraphus outbreaks will …


Practical Challenges In Delivering Dsrna For Woody Plant Protection, Zachary Bragg Jan 2024

Practical Challenges In Delivering Dsrna For Woody Plant Protection, Zachary Bragg

Theses and Dissertations--Entomology

Unprecedented weather events associated with climate change, coupled with extensive anthropogenic stresses, have reduced the effectiveness of traditional forest pest management approaches, which can no longer keep pace with invasive species overwhelming naïve landscapes and native pests experiencing eruptive and expansive outbreaks. Double-stranded RNA-(dsRNA) mediated gene silencing, a type of RNA interference (RNAi), has been coopted for use as a biopesticide against a multitude of agricultural and horticultural pests and could serve as a powerful tool for woody plant protection. While effective initiation of gene silencing and subsequent mortality have been demonstrated in multiple tree pests, effective and efficient methods …


Cyp6g2 Is The Major P450 Epoxidase Responsible For Juvenile Hormone Biosynthesis In Drosophila Melanogaster, Qiangqiang Jia, Liu Yang, Jiamin Wen, Suning Liu, Di Wen, Wei Luo, Weihua Wang, Subba R. Palli, Li Sheng Jan 2024

Cyp6g2 Is The Major P450 Epoxidase Responsible For Juvenile Hormone Biosynthesis In Drosophila Melanogaster, Qiangqiang Jia, Liu Yang, Jiamin Wen, Suning Liu, Di Wen, Wei Luo, Weihua Wang, Subba R. Palli, Li Sheng

Entomology Faculty Publications

Background Juvenile hormones (JH) play crucial role in regulating development and reproduction in insects. The most common form of JH is JH III, derived from MF through epoxidation by CYP15 enzymes. However, in the higher dipterans, such as the fruitfly, Drosophila melanogaster, a bis-epoxide form of JHB3, accounted most of the JH detected. Moreover, these higher dipterans have lost the CYP15 gene from their genomes. As a result, the identity of the P450 epoxidase in the JH biosynthesis pathway in higher dipterans remains unknown.

Results In this study, we show that Cyp6g2 serves as the major JH epoxidase responsible for …


The Mechanoreceptor Piezo Is Required For Spermatogenesis In Bombyx Mori, Zhongjie Zhang, Xiaojing Liu, Bo Hu, Kai Chen, Ye Yu, Chenxin Sun, Dalin Zhu, Hua Bai, Subba Reddy Palli, Anjiang Tan Jan 2024

The Mechanoreceptor Piezo Is Required For Spermatogenesis In Bombyx Mori, Zhongjie Zhang, Xiaojing Liu, Bo Hu, Kai Chen, Ye Yu, Chenxin Sun, Dalin Zhu, Hua Bai, Subba Reddy Palli, Anjiang Tan

Entomology Faculty Publications

Background The animal sperm shows high diversity in morphology, components, and motility. In the lepidopteran model insect, the silkworm Bombyx mori, two types of sperm, including nucleate fertile eupyrene sperm and anucleate unfertile apyrene sperm, are generated. Apyrene sperm assists fertilization by facilitating the migration of eupyrene spermatozoa from the bursa copulatrix to the spermatheca. During spermatogenesis, eupyrene sperm bundles extrude the cytoplasm by peristaltic squeezing, while the nuclei of the apyrene sperm bundles are discarded with the same process, forming matured sperm.

Results In this study, we describe that a mechanoreceptor BmPiezo, the sole Piezo ortholog in B. mori, …


Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia Dec 2023

Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia

Journal of Nonprofit Innovation

Urban farming can enhance the lives of communities and help reduce food scarcity. This paper presents a conceptual prototype of an efficient urban farming community that can be scaled for a single apartment building or an entire community across all global geoeconomics regions, including densely populated cities and rural, developing towns and communities. When deployed in coordination with smart crop choices, local farm support, and efficient transportation then the result isn’t just sustainability, but also increasing fresh produce accessibility, optimizing nutritional value, eliminating the use of ‘forever chemicals’, reducing transportation costs, and fostering global environmental benefits.

Imagine Doris, who is …


Village-Level Processing Of Pangi (Pangium Edule Reinw.) Seeds By The Obu Manuvu Improves The Edibility And Level Of Some Nutritional Factors [Research Note], Rovi Gem E. Villame-Gayagas, Jennifer P. Fronteras, Maria Christna D. Nacar, Aaron P. Lorilla, Pedro A. Alviola Iv Dec 2023

Village-Level Processing Of Pangi (Pangium Edule Reinw.) Seeds By The Obu Manuvu Improves The Edibility And Level Of Some Nutritional Factors [Research Note], Rovi Gem E. Villame-Gayagas, Jennifer P. Fronteras, Maria Christna D. Nacar, Aaron P. Lorilla, Pedro A. Alviola Iv

The Philippine Agricultural Scientist

Pangi (Pangium edule Reinw) seed is known to be a poisonous material. However, it becomes safe for consumption after processing. This study determined the effect of village-level processing by the Obu Manuvu community of Marilog District, Davao City, Philippines on the antinutrient and nutritional composition of Pangi seeds. Processing methods involved washing with running water for about 15 s, boiling in water for 30 min, and soaking in flowing water in a nearby river overnight. Results showed that after processing, the levels of antinutrients such as cyanogenic glycosides and oxalates were reduced significantly (p < 0.05) by 99.15% and 78.23%, respectively. Further, the tannin content was also significantly reduced by 96.15%. The crude fat content significantly increased (p < 0.05) by about 54%. Crude ash and fiber decreased, while protein did not change significantly (p < 0.05). Minerals such as calcium and zinc increased (p < 0.05) by 221.43% and 64.39%, respectively while the iron and manganese levels remained unaffected. Findings of the study suggested that the processing method by the Obu Manuvu effectively reduces the level of antinutrients, thereby improving the edibility and safety of Pangi seeds. Further, the processing method improves the level of some nutrients, specifically crude fat, calcium, and zinc.


Evaluation Of Crocus Sativus L. Quality Using Ftir Spectroscopy, Lina M. Alnaddaf, Mohamad Nabil Ksaier, Salim F. Bamsaoud Nov 2023

Evaluation Of Crocus Sativus L. Quality Using Ftir Spectroscopy, Lina M. Alnaddaf, Mohamad Nabil Ksaier, Salim F. Bamsaoud

Hadhramout University Journal of Natural & Applied Sciences

Crocus sativus L. is one the important spices that gives food a distinctive color and taste as well as its medicinal value. Its quality can be estimated using different analysis methods. In This study we used FTIR spectroscopy to Evaluate Crocus sativus L. quality at MEDICO Lab 2023. FTIR Spectroscopy is a fast and reliable analytical method for quality saffron evaluation. The results of FTIR spectra indicated functional groups related to O-H, C=C, C=O, C-O, C(O)–O, C-H, C-H (cis-) and C-H (trans-). Also, our samples lacked the distinctive bands of the active substances of crocetin. Furthermore, …


Valorising Urban Organic Waste Streams Through Agrochemical Extraction And Organic Acid Production Via Cascading Biorefinery Approach, Shon Shiju Mr Nov 2023

Valorising Urban Organic Waste Streams Through Agrochemical Extraction And Organic Acid Production Via Cascading Biorefinery Approach, Shon Shiju Mr

ORBioM (Open Research BioSciences Meeting)

The CircBioCityWaste project is based on the vital principle of the ‘circular bioeconomy’ focusing on the sustainable, resource-efficient valorisation of anaerobic digestate, from urban waste streams (mainly, wastewater treatment plants, dairy processed sludge (DPS), food waste, and organic fraction of municipal solid waste (OFMSW)) to produce bio-based agrochemicals (biostimulants and biofertilisers) and organic acids via the cascading biorefinery concept. The project focuses on an ‘end-of-waste’ approach to producing deliverables for sustainable agriculture, promoting plant growth, and improving soil health while keeping circular bio-economy aspects in the focus. The biorefinery starts with digestate collection, characterisation, development of pre-treatment methods, and novel …


Laser Inscribed Graphene Aptasensor For Detection Of Apple Stem Pitting Virus, Yifan Tang May 2023

Laser Inscribed Graphene Aptasensor For Detection Of Apple Stem Pitting Virus, Yifan Tang

All Theses

Apple stem pitting virus (ASPV) is a latent RNA virus that could cause significant loss to apple production; early-stage field diagnosis could reduce the economic loss caused by ASPV infection. Biosensor is a promising user-friendly detection tool that could transduce biological or chemical interactions into electric signals. Among various types of biosensors, aptasensor, which use aptamers as recognition elements show potential as a high throughput, in-field test. The goal of this thesis is to develop an electrochemical aptasensor testing system for ASPV detection. The quality control study of laser inscribed graphene (LIG) based working electrode of the biosensor was conducted …


Ecological Risk Assessment Of Transgenic Conditional Lethality Systems For Genetic Biocontrol Strategies, Fernan Rodrigo Perez-Galvez Jan 2023

Ecological Risk Assessment Of Transgenic Conditional Lethality Systems For Genetic Biocontrol Strategies, Fernan Rodrigo Perez-Galvez

Theses and Dissertations--Entomology

Genetic strategies of insect pest control are receiving increased interest due to recent advances in genetic engineering. By introducing alleles that make males functionally sterile, genetically modified (GM) insects can be used in area-wide pest management programs similar to the Sterile Insect Technique (SIT). Genetic control strategies carry several potential benefits, including improved efficacy and specificity, lower operation costs, and reduced dependence on chemical insecticides, but their use is still controversial despite extensive technical documentation indicating their innocuity to humans and the environment. This hesitation is likely due to the novel nature of the approach.

While the first field applications …


Increasing The Resilience Of Plant Immunity To A Warming Climate, Jong Hum Kim, Christian Castroverde, Shuai Huang, Chao Li, Richard Hilleary, Adam Seroka, Reza Sohrabi, Diana Medina-Yerena, Bethany Huot, Jie Wang, Sharon Marr, Mary Wildermuth, Tao Chen, John Macmicking, Sheng Yang He Jun 2022

Increasing The Resilience Of Plant Immunity To A Warming Climate, Jong Hum Kim, Christian Castroverde, Shuai Huang, Chao Li, Richard Hilleary, Adam Seroka, Reza Sohrabi, Diana Medina-Yerena, Bethany Huot, Jie Wang, Sharon Marr, Mary Wildermuth, Tao Chen, John Macmicking, Sheng Yang He

Biology Faculty Publications

Extreme weather conditions associated with climate change affect many aspects of plant and animal life, including the response to infectious diseases. Production of salicylic acid (SA), a central plant defence hormone, is particularly vulnerable to suppression by short periods of hot weather above the normal plant growth temperature range via an unknown mechanism. Here we show that suppression of SA production in Arabidopsis thaliana at 28 °C is independent of PHYTOCHROME B (phyB) and EARLY FLOWERING 3 (ELF3), which regulate thermo-responsive plant growth and development. Instead, we found that formation of GUANYLATE BINDING PROTEIN-LIKE 3 (GBPL3) defence-activated biomolecular condensates (GDACs) …


Consumer Preferences For Lab Grown Meat: The Effect Of Information On Consumer Choice, Aryn Blumenberg May 2022

Consumer Preferences For Lab Grown Meat: The Effect Of Information On Consumer Choice, Aryn Blumenberg

Food Science Undergraduate Honors Theses

Global population growth and increased meat demand present challenges for the agricultural industry to produce meat sustainably. In-vitro meat (IVM) is an alternative that could reduce negative impacts associated with livestock production. The goal of this study was to examine consumers’ preferences for IVM. A choice experiment was created with twelve choice tasks that varied across five attributes: production method (IVM or conventional), carbon trust label, organic label, animal welfare label, and price. 1,120 US consumers were randomly assigned to one of four information treatments, differing by information presented regarding IVM: 1) neutral (baseline), 2) positive, 3) negative, and 4) …


Unraveling The Genetic Architecture Of Somatic Embryogenesis In Upland Cotton, Adam M. Canal May 2022

Unraveling The Genetic Architecture Of Somatic Embryogenesis In Upland Cotton, Adam M. Canal

All Theses

Somatic embryogenesis is the de novo development of asexual embryos because of the plasticity of the plant cell. In tissue culture, the biochemical and genetic mechanisms of dedifferentiated callus tissues can be reprogrammed to transdifferentiate into developed, polarized embryos, which can ultimately regenerate into whole plants. Although this rarely occurs in nature, scientists have exploited this process for decades to regenerate whole plants following gene transformation or for micropropagation. While some species are amenable to in vitro regeneration, upland cotton is particularly recalcitrant, with regenerative potential being confined to only several genotypes. The lack of elite, regenerable genotypes greatly restricts …


First Detection Of Naturally Introgressed Bt Cry1ab In Asian Corn Borer [Ostrinia Furnacalis (Guenée)] - Resistant Traditional Maize (Silangan) In The Philippines, Merdelyn T. Caasi-Lit, Eureka Teresa C. Ocampo, Artemio Salazar, Jefferson Paril, Bryan Novio, Bernard Panabang, Angelyn Marta Marmeto Dec 2021

First Detection Of Naturally Introgressed Bt Cry1ab In Asian Corn Borer [Ostrinia Furnacalis (Guenée)] - Resistant Traditional Maize (Silangan) In The Philippines, Merdelyn T. Caasi-Lit, Eureka Teresa C. Ocampo, Artemio Salazar, Jefferson Paril, Bryan Novio, Bernard Panabang, Angelyn Marta Marmeto

The Philippine Agricultural Scientist

Resistance against insect pests is one of the most promising and highly favored characteristics of an economically important crop. In the Philippines, the Asian corn borer (ACB), Ostrinia furnacalis (Guenée), is the most destructive insect pest of maize. The discovery of Bacillus thuringiensis and the Bt toxin, which led to the development of Bt corn, effectively controlled this pest. In this study, four traditional varieties of maize that showed resistance against ACB were tested for the presence of Bt Cry1Ab protein. Out of these four, a traditional variety from San Carlos City, Pangasinan, which was initially thought to have natural …


Epinasty Accompanies Potassium Nitrate-Induced Flower Bud Break In 'Carabao' Mango [Research Note], Ulysses Besas, Calixto Protacio Dec 2021

Epinasty Accompanies Potassium Nitrate-Induced Flower Bud Break In 'Carabao' Mango [Research Note], Ulysses Besas, Calixto Protacio

The Philippine Agricultural Scientist

The hypothesis that potassium nitrate application promotes epinasty in ‘Carabao’ mango through increased ethylene production was investigated. The degree of drooping, apical primordium growth as affected by shoot ethylene and levels after potassium nitrate spraying were monitored. Evidence presented established for the first time in ‘Carabao’ mango that epinasty occurred just before flower emergence, coinciding with visible bud break, and extended up to 18 days, marking floral anthesis. The possible reasons could be the higher levels of ethylene at 0.31% and earlier increase of ethylene in the shoot apex at four hours and apical primordium growth. Increased ethylene levels at …


Novel Pilot Development Of A Closed-Loop Sustainable System Between Biogas Renewable Energy, Distilling, And Aquaculture By Vermiculture Of Stillage Wastes, Samuel C. Kessler Sep 2021

Novel Pilot Development Of A Closed-Loop Sustainable System Between Biogas Renewable Energy, Distilling, And Aquaculture By Vermiculture Of Stillage Wastes, Samuel C. Kessler

The Cardinal Edge

This study provides a mixed-methods approach in analyzing a potential closed-loop system between renewable biogas production from anaerobic digestion, vermiculture production, aquaculture production, and organic wastes with a particular focus on stillage wastes. Such system may hold significant promise for significantly reducing organic carbon and methane emissions from its components, and should be assessed for such. The 2021 IPCC report essentially identified methane reduction as the single fastest way to slow global warming (IPCC, 2021), making the study and implementation of methane-reducing systems and supportive policy for them critical. Knowledge gaps to implementing this system were qualitatively identified as disconnect …


Marker-Assisted Selection To Determine The Introgression Of Rpv-3 Mediated Downy Mildew Resistance In 'Chambourcin' X 'Caberenet Sauvignon' Grapevine Population, Kavya Sri Tummala Aug 2021

Marker-Assisted Selection To Determine The Introgression Of Rpv-3 Mediated Downy Mildew Resistance In 'Chambourcin' X 'Caberenet Sauvignon' Grapevine Population, Kavya Sri Tummala

Graduate Theses/Dissertations

Downy mildew caused by the fungus, Plasmopara viticola in the grapes is one of the major diseases affecting crop yield throughout the world. Breeding grapes via conventional methods for the downy mildew resistance will take approximately 25-30 years to fully evaluate and release new cultivars. Because of the long breeding cycle in woody plant species like grape, developing DNA markers linked to genes or quantitative trait loci (QTLs) for horticultural traits can greatly accelerate the breeding process and allow a much more accurate selection of progeny. This study aims to determine the presence of resistance in the 267 F1 genotypes …