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Articles 241 - 253 of 253
Full-Text Articles in Botany
Genetic Structure Of Pseudoroegneria Spicata In The Northern Palouse Prairie And Channeled Scablands, Ethan Timothy Bean
Genetic Structure Of Pseudoroegneria Spicata In The Northern Palouse Prairie And Channeled Scablands, Ethan Timothy Bean
EWU Masters Thesis Collection
Establishing genetically diverse communities that can adapt to dynamic selective pressures is crucial in ecological restoration. However, the genetic structure of native plant species used for restoration is often poorly understood. Pseudoroegneria spicata, is a keystone species of the Inland Northwestern US that has become a staple in commercially available restoration seed mixes. It is abundant in remnant prairies of the endangered Palouse Prairie ecoregion, which is characterized by rolling hills of deep loess soil. Less than 1% of native Palouse Prairie is left, due to agricultural conversion, with remnants highly fragmented and isolated. P. spicata is also common in …
Evaluation Of The Effects Of Temperature, Light, And Uv-C Radiation On Hsp70aexpression In Chlamydomonas Reinhardtii, Tuba Sevgi̇, Eli̇f Demi̇rkan
Evaluation Of The Effects Of Temperature, Light, And Uv-C Radiation On Hsp70aexpression In Chlamydomonas Reinhardtii, Tuba Sevgi̇, Eli̇f Demi̇rkan
Turkish Journal of Botany
In this study, various physical parameters (temperature, light intensity and UV-C radiation) which could be effective in heat shock response on C.reinhardtii by using molecular tools were investigated. In total, 256 transformants were obtained, among them, 160 transformants had continuous expression while 96 of them had heat-inducible expression. In these transformants, arylsulfatase activities were detected qualitatively and quantitatively. The best two transformants were selected and used in studies. To determine the effect of temperature, the cells were shifted from 23 °C to 35 °C, 37 °C, 40 °C and 42 °C. The heat shock response was induced at all temperatures. …
Interactive Effects Of Salinity And Plant Density On The Growth Ofcyperus Arenarius, A Sand Dune Stabilizer, Farhat Agha, Muhammad Zaheer Ahmed, Bilquees Gul, Muhammad Ajmal Khan
Interactive Effects Of Salinity And Plant Density On The Growth Ofcyperus Arenarius, A Sand Dune Stabilizer, Farhat Agha, Muhammad Zaheer Ahmed, Bilquees Gul, Muhammad Ajmal Khan
Turkish Journal of Botany
Competition and environmental stress are crucial factors for structuring plant population in natural habitats. Cyperus arenarius, a sedge of coastal sand dunes habitat, is a suitable species for coastal restoration and dune stabilization, but how salinity and plant density interact in affecting its growth is still unknown. Here, growth, survival, and physiological responses of C. arenarius to salinity (sea-salt) and plant density were investigated. A set of growth experiments in which combinations of 4 salinity levels (0, 2, 4, and 6 S m-1 sea-salt) and 3 planting densities (2, 5, 8 plants pot-1) were tested under controlled greenhouse conditions. Plant …
Medicinal Plants Of Pakistan And Their Xanthine Oxidase Inhibition Activity To Treat Gout:A Systematic Review, Kanwal Ashiq, Khalid Hussain, Muhammad Islam, Naureen Shehzadi, Ejaz Ali, Sana Ashiq
Medicinal Plants Of Pakistan And Their Xanthine Oxidase Inhibition Activity To Treat Gout:A Systematic Review, Kanwal Ashiq, Khalid Hussain, Muhammad Islam, Naureen Shehzadi, Ejaz Ali, Sana Ashiq
Turkish Journal of Botany
Gout is the most prevalent form of arthritis that arises due to hyperuricemia. Xanthine oxidase inhibitors (XOI) are usually prescribed to treat gout. Although treatment options are available, these therapies are associated with side effects, and natural remedies may be proven helpful in this regard. This systematic review aims to present consolidated information on the xanthine oxidase inhibition potential of the plants located in Pakistan. An extensive literature review reveals that no such study that systematically summarizes existing data is currently available. The present study is registered with PROSPERO (ID: CRD42021247416) and performed according to PRISMA guidelines. Several databases were …
Phenolic Content, Antibacterial, Antioxidant, And Toxicological Investigations Oferodium Guttatum (Geraniaceae) Collected From The Northeast Of Morocco, Hanae Naceiri Mrabti, Latifa Doudach, Mohamed Reda Kachmar, Abdelaziz Ed Dra, Zineb Khali, Nidal Naceiri Mrabti, Kaoutar Benrahou Benrahou, Khouloud Harraqui, Gökhan Zengi̇n, Abdelhakim Bouyahya, Moulay El Abbes Faouzi
Phenolic Content, Antibacterial, Antioxidant, And Toxicological Investigations Oferodium Guttatum (Geraniaceae) Collected From The Northeast Of Morocco, Hanae Naceiri Mrabti, Latifa Doudach, Mohamed Reda Kachmar, Abdelaziz Ed Dra, Zineb Khali, Nidal Naceiri Mrabti, Kaoutar Benrahou Benrahou, Khouloud Harraqui, Gökhan Zengi̇n, Abdelhakim Bouyahya, Moulay El Abbes Faouzi
Turkish Journal of Botany
Erodium genus contains several medicinal traditionally used and pharmacologically explored. However, Erodium guttatum has not been well valorized. Therefore, the aim of the present study was to evaluate the antibacterial and antioxidant activities of E. guttatum extracts in addition to their toxicity. To achieve the objectives of this study, methanol and aqueous extracts of E. guttatum were prepared. Then, antibacterial activity was evaluated against Escherichia coli ATCC 25922, Klebsiella pneumoniae ATCC 43816, Salmonella typhimurium ATCC 14028, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 25923, and Listeria monocytogenes ATCC 13932 by disc diffusion and broth microdilution methods. The antioxidant activity was …
A Comparative Study Of Physicochemical Properties, Antioxidant And Enzyme Inhibitionactivities Of Oils Extracted From Seeds Of Seven New Sunflower (Helianthus Annuus L.) Lines, Ahmed A. A. Abdalla, Sakina Yagi, Gökhan Zengi̇n, Abdelwahab H. Abdallah, Abdirahman Elmi, Rosella Spina, Francois Dupire, Dominique Mattar
A Comparative Study Of Physicochemical Properties, Antioxidant And Enzyme Inhibitionactivities Of Oils Extracted From Seeds Of Seven New Sunflower (Helianthus Annuus L.) Lines, Ahmed A. A. Abdalla, Sakina Yagi, Gökhan Zengi̇n, Abdelwahab H. Abdallah, Abdirahman Elmi, Rosella Spina, Francois Dupire, Dominique Mattar
Turkish Journal of Botany
This study was aimed to evaluate the physicochemical properties and chemical profile of seeds oil obtained from new seven sunflower (Helianthus annuus L.) lines as well as their antioxidant and enzyme inhibition activity. The seeds powder was extracted by maceration in n-hexane. The oil content of the seven lines was ranged from 20.04% to 36.65% and was either yellow or pale yellow in color. No significant variations were observed on the refractive index (1.46 unit) of the oil. Oils of the seven lines were significantly (p ? 0.05) different in their saponification values (32.13-282.66 mg KOH/g oil), peroxide values (1.76-13.26 …
Mesua Ferrea L. (Calophyllaceae) Exerts Therapeutic Effects In Allergic Asthma Bymodulating Cytokines Production In Asthmatic Rats, Poonam Arora, Shahid Hamid Ansari, Lalit Mohan Nainwal
Mesua Ferrea L. (Calophyllaceae) Exerts Therapeutic Effects In Allergic Asthma Bymodulating Cytokines Production In Asthmatic Rats, Poonam Arora, Shahid Hamid Ansari, Lalit Mohan Nainwal
Turkish Journal of Botany
In the present study, ethanolic extract of Mesua ferrea L. stamens was investigated for its potential to reverse some features of bronchial asthma in ovalbumin-induced murine model of asthma. Mesua ferrea commonly called nagakeshar (Family, Calophyllaceae) is a well-known antiallergic drug in the Asian folk system of medicines. In the present work, pharmacological studies are done to provide scientific evidence for therapeutic potential of plants in allergic asthma. Asthma was induced in experimental rats with allergen suspension of ovalbumin and aluminium hydroxide followed by treatment with dexamethasone (2.5 mg/Kg, p.o) or M. ferrea stamen extract (3.75 and 15 mg/Kg, b.w., …
Inhibitory Effects Of Propiconazole On Rice Root Development And Abilities Of Brassinosteroid And Auxin In Alleviating Its Effects, Watcharapong Wimonchaijit
Inhibitory Effects Of Propiconazole On Rice Root Development And Abilities Of Brassinosteroid And Auxin In Alleviating Its Effects, Watcharapong Wimonchaijit
Chulalongkorn University Theses and Dissertations (Chula ETD)
Propiconazole is commonly used as a fungicide to minimize crop loss caused by various fungal diseases in many crop plants, including rice. Propiconazole has the potentials to deteriorate the environmental problems due to its chemical properties that it is highly persistent in soil after application, suggesting that the constant use of propiconazole could be problematic. Hence, the evaluation of its effects on plant growth and development is necessary for the assessment of future use of propiconazole. Here, we demonstrated that propiconazole had inhibitory effects on plant growth. Treatments of propiconazole resulted in shoot dwarfism, abnormal leaf morphology, reduced plant biomass, …
Epiphytic Microbiota Of Kai Cladophora Sp. From Nan River, Nan Province, Thailand, Karnjana Ruen-Pham
Epiphytic Microbiota Of Kai Cladophora Sp. From Nan River, Nan Province, Thailand, Karnjana Ruen-Pham
Chulalongkorn University Theses and Dissertations (Chula ETD)
Cladophora is a cosmopolitan green algal genus in northern Thailand, commonly known as Kai or Sa Rai Kai, which the local people use for culinary and medicinal purposes. In nature, Cladophora acts as an ecological engineer in the ecosystem by creating, modifying, and maintaining the habitat by providing oxygen and microhabitats for several organisms, including prokaryotes and eukaryotes, namely epiphytic microbiota. These epiphytic microbiota living on the algal host's surface might exhibit crucial roles in the ecosystem. However, most understandings of the Cladophora microbiota were from the USA. Therefore, this study aims to investigate the Cladophora microbiota collected from Nan …
Effect Of Osgtl1 Promoter Editing On Stomatal Distribution Pattern And Photosynthesis In Rice Oryza Sativa L., Widya Fajariani
Effect Of Osgtl1 Promoter Editing On Stomatal Distribution Pattern And Photosynthesis In Rice Oryza Sativa L., Widya Fajariani
Chulalongkorn University Theses and Dissertations (Chula ETD)
GT2-LIKE1 (GTL1) gene is a negative regulator of stomatal development. It regulates stomatal number in plants. The CRISPR/Cas9 system has been used to modify the OsGTL1 promoter. This research aims to screen Cas9-free rice with OsGTL1 promoter modification to investigate the modification effects on the stomatal distribution pattern and the photosynthesis process. Cas9 specific primers were designed for Cas9 screening in all tillers of 8 T3 rice lines. Among them, only a single T3 line was found to be Cas9-free in all tillers. The nucleotide sequences of OsGTL1 promoter in some Cas9-free plants revealed the modification in OsGTL1 promoter, which …
Phylogenetic Analysis Of Salt Tolerant Genes In Local Thai Rice And Salt Tolerant Gene Identification By F2 Bulk-Segregant Analysis, Susinya Habila
Phylogenetic Analysis Of Salt Tolerant Genes In Local Thai Rice And Salt Tolerant Gene Identification By F2 Bulk-Segregant Analysis, Susinya Habila
Chulalongkorn University Theses and Dissertations (Chula ETD)
Genetic diversity is important for developing salt-tolerant rice varieties. This research used the existing whole-exome sequences of eight Thai rice varieties, including the standard checks for tolerance and susceptibility, and the previously reported salt-tolerant genes to understand the mechanisms of salt tolerance in Thai rice, as well as the bulk-segregant analysis (BSA) to identify salt-tolerant QTLs in ‘Jao Khao’, the salt tolerant Thai rice. Salt responsive characteristics were used to classify tolerant and susceptible genotypes at the seedling stage. Phylogenetic analysis of SNPs from exome sequences showed that the Thai rice varieties were monophyletic and distantly related to 'Pokkali' and …
Stomatal Conductance And Reed Canary Grass Suppression Traits Of Native Michigan Trees, David E. Martinez, Martin L. Vanderschoot, Dave Warners
Stomatal Conductance And Reed Canary Grass Suppression Traits Of Native Michigan Trees, David E. Martinez, Martin L. Vanderschoot, Dave Warners
Student Papers and Reports
Reed canary grass (Phalaris arundinacea), a prominent invasive understory species, threatens native Michigan biodiversity statewide. A notable affected area includes a stretch of agricultural land along Schooley Drain in Caledonia, MI, located in the headwaters of the Plaster Creek watershed. Our study pursues the following questions: “Do native trees provide enough shade to reduce the growth of Reed canary grass?” and “Which native trees best transpire water from a floodplain?”: To answer these questions, we initiated a long term evaluation of seven different species of native Michigan trees to investigate which species best inhibits the growth of reed …
The Systematics Of Physaria Sensu Stricto From Wyoming And Surrounding Areas, Jason Ratcliff
The Systematics Of Physaria Sensu Stricto From Wyoming And Surrounding Areas, Jason Ratcliff
Dissertations and Theses @ UNI
Two genera of Brassicaceae – Lesquerella and Physaria – were recently united on the basis of monophyly. Classically, these genera have been distinguished based on morphology with 'traditional” Physaria species having doubly inflated (didymous) fruits. Molecular data consisting of ribosomal internal transcribed spacer (ITS) DNA sequences indicate Physaria has evolved from the larger Lesquerella genus, thus making Lesquerella a paraphyletic grouping as previously described. A revised treatment of the combined Physaria recognized 106 species within the genus, of which 26 taxa occur in Wyoming. Of the Wyoming taxa, those traditionally described as belonging to Physaria (i.e.Physaria sensu stricto) have …