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Articles 1 - 30 of 83
Full-Text Articles in Plant Sciences
The Floral Charms Of Saint John’S: A Survey Of Botanical Communities, Stephen G. Saupe, Paul Melchior
The Floral Charms Of Saint John’S: A Survey Of Botanical Communities, Stephen G. Saupe, Paul Melchior
Headwaters
Saint John’s is a “landscape paradise” in central Minnesota. Although no complete checklist of vegetation exists for the campus, various surveys reveal a diverse flora. This floral wealth is the result of several terrestrial biomes converging on campus — prairie, savanna, deciduous forest, and coniferous forest — as well as diverse aquatic habitats including both lakes and wetlands. A 56-acre restored prairie at the entrance of Saint John’s is dominated by big bluestem and little bluestem. A savanna has been restored to the north and east of the Gemini Lakes and is characterized by bur oaks scattered among prairie grasses …
Investigation Of Parasympathetic Effects Of Lavender Essential Oil In Humans, Haakon Robert Nelson, Rachel Ann Burkhart, Daniel Morin, Nicole Grace Weissenfluh, Michael R. Korn
Investigation Of Parasympathetic Effects Of Lavender Essential Oil In Humans, Haakon Robert Nelson, Rachel Ann Burkhart, Daniel Morin, Nicole Grace Weissenfluh, Michael R. Korn
Montview Journal of Research & Scholarship
The purpose of this study will be to investigate the claim that administration of lavender (Lavandula angustifolia) essential oil (topically, orally, and/or respiratorily) produces a relaxative effect in human subjects. This investigation will theoretically be conducted in two stages. Stage one will focus primarily on determining the presence of therapeutic effects and the relative effectiveness of lavender in several application modalities. Stage two will proceed based on findings from stage one. If significant parasympathetic effects are observed in relation to one or more of the lavender oil modalities described above, a more focused investigation will be conducted in stage two …
Section Abstracts: Botany
Virginia Journal of Science
Abstracts of the Botany Section for the 94th Annual Virginia Academy of Science Meeting, May 18-20, 2016, at University of Mary Washington, Fredericksburg, VA.
Sem Studies Of Two Riparian New-Caledonian Conifers Reveal Air Channels In Stem Wood; Field Observations, Sherwin Carlquist, Mare Nazaire
Sem Studies Of Two Riparian New-Caledonian Conifers Reveal Air Channels In Stem Wood; Field Observations, Sherwin Carlquist, Mare Nazaire
Aliso: A Journal of Systematic and Floristic Botany
Two New Caledonian conifers, Dacrydium guillauminii and Retrophyllum minor, both of Podocarpaceae, occupy distinctive habitats in which roots are characteristically inundated. SEM studies of stem wood anatomy of both reveal characteristic vertical intercellular channels, not apparent in light microscope examination. These channels are regular in spacing as seen in radial sections and indefinite in vertical extent; they were observed only adjacent to rays. These channels, not reported in other conifers, are a potential source of aeration for roots and submersed stem portions. Other wood details are reported. In order to provide a more comprehensive picture of adaptation to these …
A Morphometric Analysis Of Arceuthobium Campylopodum And Arceuthobium Divaricatum (Viscaceae), Robert L. Mathiasen, Shawn C. Kenaley, Carolyn M. Daugherty
A Morphometric Analysis Of Arceuthobium Campylopodum And Arceuthobium Divaricatum (Viscaceae), Robert L. Mathiasen, Shawn C. Kenaley, Carolyn M. Daugherty
Aliso: A Journal of Systematic and Floristic Botany
Although the classification of pinyon dwarf mistletoe (Arceuthobium divaricatum, Viscaceae) has not been controversial to any extent since Engelmann described it in 1878, a recent taxonomic treatment has included this species in western dwarf mistletoe (A. campylopodum). While pinyon dwarf mistletoe is only known to parasitize pinyon pines (Pinus subsection Cembroides), western dwarf mistletoe as it has been known since the late 1800s is a principal parasite of Pinus ponderosa and P. jeffreyi and has never been observed parasitizing pinyon pines. With reservations about the recent classification of pinyon dwarf mistletoe and its treatment …
Tomus Nominum Eriastri: The Nomenclature And Taxonomy Of Eriastrum (Polemoniaceae: Loeselieae), Sarah J. De Groot
Tomus Nominum Eriastri: The Nomenclature And Taxonomy Of Eriastrum (Polemoniaceae: Loeselieae), Sarah J. De Groot
Aliso: A Journal of Systematic and Floristic Botany
A revised taxonomy for the genus Eriastrum is presented, including type information, synonymy, descriptions, and keys for identification. The nomenclature of Hugelia lanata, Gilia floccosa, and Gilia virgata var. yageri is clarified. Additionally, issues pertaining to August Brand’s, Thomas Nuttall’s, and Asa Gray’s names in Eriastrum are reviewed. An illustrated glossary of important descriptive terms is provided, along with photographs and illustrations of taxa and features. Lectotypes are proposed for 14 taxa. There is further discussion about the nomenclature and type localities for each taxon, comparison of circumscriptions from previous authors, and some field observations. Discussion of identifying …
Letter From The Dean, Lona Robertson
Letter From The Dean, Lona Robertson
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Contents, Discovery Editors
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Effect Of Timing Of Shade On Growth, Development, Physiology, And Fruiting Of A Primocane Fruiting Blackberry In A Controlled Environment, Olivia C. Caillouet, Curt C. Rom, Jason Mcafee, Luke Freeman, Heather Friedrich
Effect Of Timing Of Shade On Growth, Development, Physiology, And Fruiting Of A Primocane Fruiting Blackberry In A Controlled Environment, Olivia C. Caillouet, Curt C. Rom, Jason Mcafee, Luke Freeman, Heather Friedrich
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Primocane blackberry production in the upper south is limited by high temperatures during the bloom and early fruiting period, resulting in poor fruit set and poor fruit quality. Shade may have the potential to delay bloom and flowering to a more favorable season. A greenhouse study was established to evaluate the effects of shade on primocane blackberry growth, physiology, and fruiting. Single rooted plants of ‘Prime-Ark® 45’ were planted in 12-liter pots and grown in a greenhouse at the University of Arkansas System Division of Agriculture, Agriculture Research and Extension Center, Fayetteville, Arkansas. At approximately 0.25 m in height, one …
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 17 2016, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 17 2016, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
What Would The Babel Fish Say?, Monica Gagliano
What Would The Babel Fish Say?, Monica Gagliano
Animal Sentience
Starting with its title, Key’s (2016) target article advocates the view that fish do not feel pain. The author describes the neuroanatomical, physiological and behavioural conditions involved in the experience of pain in humans and rodents and confidently applies analogical arguments as though they were established facts in support of the negative conclusion about the inability of fish to feel pain. The logical reasoning, unfortunately, becomes somewhat incoherent, with the arbitrary application of the designated human criteria for an analogical argument to one animal species (e.g., rodents) but not another (fish). Research findings are reported selectively, and questionable interpretations are …
A New Species Of Cyathus (Agaricaceae) From India, Kanad Das, Manoj Emanuel Hembrom, Arvind Parihar, Rui Lin Zhao
A New Species Of Cyathus (Agaricaceae) From India, Kanad Das, Manoj Emanuel Hembrom, Arvind Parihar, Rui Lin Zhao
Turkish Journal of Botany
The Acharya Jagadish Chandra Bose Indian Botanic Garden is a well-known botanical garden. Cyathus thindii, a new species of bird's nest fungus, was collected from this garden, and is described and illustrated in the present paper. It is distinct with its sessile basidiomata growing on a white mycelial pad, plicate exterior (partly) and interior wall of the peridium, comparatively large peridioles without tunica, and medium sized spores. Its relation with allied taxa is discussed and a provisional key to the Indian species of Cyathus is given in the present paper.
Message From The Faculty Editor, Mary Savin
Message From The Faculty Editor, Mary Savin
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
The Effects Of Shade On Primocane Fruiting Blackberries In The Field, Olivia C. Caillouet, Curt C. Rom, Jason Mcafee, Luke Freeman, Heather Friedrich
The Effects Of Shade On Primocane Fruiting Blackberries In The Field, Olivia C. Caillouet, Curt C. Rom, Jason Mcafee, Luke Freeman, Heather Friedrich
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Primocane fruiting blackberry production in Arkansas is limited by heat during the flowering and early fruiting season. Shade could be used to delay flowering and fruiting to more favorable growth period. This study was designed to test three levels of shade (0% [control], 30% and 50% shading) applied at three times during the growing season that examined the growth, development, physiology of flowering, and fruiting of ‘Prime-Ark® 45’ blackberries. The seven treatments were as follows: 1) an untreated control (CK), 2) early shade 30% (ES30), mid shade 30% (MS30), 4) late shade 30% (LS30), 5) early shade 50% (ES50), 6) …
Evaluation Of Harvest Time/Temperature And Storage Temperature On Postharvest Incidence Of Red Drupelet Reversion Development And Firmness Of Blackberry (Rubus L. Subgenus Rubus Watson), Jack E. Mccoy, John R. Clarke, Alejandra A. Salgado, Andrew Jecmen
Evaluation Of Harvest Time/Temperature And Storage Temperature On Postharvest Incidence Of Red Drupelet Reversion Development And Firmness Of Blackberry (Rubus L. Subgenus Rubus Watson), Jack E. Mccoy, John R. Clarke, Alejandra A. Salgado, Andrew Jecmen
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Since 1964, the University of Arkansas blackberry breeding program has worked to improve fruit quality and shipping capabilities. A major limitation in blackberry fruit is postharvest handling potential for the shipping market. Maintaining fruit firmness in storage is crucial. Red drupelet reversion (or simply reversion) is also an important postharvest disorder in which drupelets change from black to red during storage. It is hypothesized that reversion is increased when fruit is picked at hot temperatures and exposed to a rapid change of temperature. These studies evaluated harvest time/temperature, as well as storage temperature, on berry firmness and the incidence of …
Bumpers College Students In Action, Discovery Editors
Bumpers College Students In Action, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Characteristics Of Desert Vegetation Along Four Transects In The Aridenvironment Of Southern Egypt, Fawzy Salama, Monier Abd El-Ghani, Mohamed Gadallah, Salah El Naggar, Ahmed Amro
Characteristics Of Desert Vegetation Along Four Transects In The Aridenvironment Of Southern Egypt, Fawzy Salama, Monier Abd El-Ghani, Mohamed Gadallah, Salah El Naggar, Ahmed Amro
Turkish Journal of Botany
The floristic diversity and vegetation-environment relations in the southern part of the Eastern Desert, between 26°45?N and 24°1?N and between 32°45?E and 35°00?E and covering a total area of about 54,500 km2, were investigated. For this purpose, 142 georeferenced stands distributed in four transects were selected: 22 from Qena-Safaga road (T1), 28 from Idfu-Marsa Alam road (T2), 46 from Aswan-Kharit-Gimal (T3), and 46 from Red Sea Coastal Plain (T4). Altogether, 94 species belonging to 33 families were recorded, and the species richness (SR) varied from one transect to another: 46, 35, 52, and 46 in T1, T2, T3, and T4, …
Bellevalia Vuralii B.Şahin & Aslan (Asparagaceae): A New Species From Se Turkey, Bi̇lal Şahi̇n, Serdar Aslan, Osman Karabacak, Esra Marti̇n
Bellevalia Vuralii B.Şahin & Aslan (Asparagaceae): A New Species From Se Turkey, Bi̇lal Şahi̇n, Serdar Aslan, Osman Karabacak, Esra Marti̇n
Turkish Journal of Botany
Bellevalia vuralii B.Şahin & Aslan is described as a new species of Bellevalia from southeast Turkey. As well as its morphological characteristics and classification with regards to sections, its description, ecology, and relationship with related species are presented and discussed. The somatic chromosome number of these species was defined to be 2n = 8.
Relationships Between Some Endogenous Signal Compounds And The Antioxidantsystem In Response To Chilling Stress In Maize (Zea Mays L.) Seedlings, Nevzat Esi̇m, Ökkeş Atici
Relationships Between Some Endogenous Signal Compounds And The Antioxidantsystem In Response To Chilling Stress In Maize (Zea Mays L.) Seedlings, Nevzat Esi̇m, Ökkeş Atici
Turkish Journal of Botany
This study investigated the correlation between endogenous levels of some signal compounds [nitric oxide (NO), salicylic acid (SA), abscisic acid (ABA)] and the antioxidant system in response to chilling stress in maize (Zea mays L.). Seedlings grown for 12 or 19 days under normal conditions (24/20 °C) were exposed to chilling stress (10/7 °C) for 2 days. The levels of NO, SA, ABA, hydrogen peroxide (H2O2), superoxide anion (O2.-), and malondialdehyde (MDA) were determined in leaves of seedlings harvested on day 14 and day 21. In the same seedlings, the activities of superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and …
Inocybe Kohistanensis, A New Species From Swat, Pakistan, Sana Jabeen, Ishtiaq Ahmad, Abdur Rashid, Abdul Khalid
Inocybe Kohistanensis, A New Species From Swat, Pakistan, Sana Jabeen, Ishtiaq Ahmad, Abdur Rashid, Abdul Khalid
Turkish Journal of Botany
Inocybe kohistanensis, a new species, is described from Swat, Khyber Pakhtunkhwa, Pakistan, on the basis of morphological characters as well as molecular phylogenetic analyses. The new species is characterized by a fibrillose reddish brown pileus, pruinose stipe with a prominent marginate bulb, and nodular spores. Sequences from the internal transcribed spacer region suggest that I. Kohistanensis is distinct from all other Inocybe species sampled.
Contribution To The Epiphytic Flora And Vegetation Of The Lakes District In The Burdur Region (Turkey), Mevlüt Alataş, Recep Kara, Tülay Ezer, Nevzat Batan, Turan Özdemi̇r
Contribution To The Epiphytic Flora And Vegetation Of The Lakes District In The Burdur Region (Turkey), Mevlüt Alataş, Recep Kara, Tülay Ezer, Nevzat Batan, Turan Özdemi̇r
Turkish Journal of Botany
In this study the epiphytic bryophyte flora and vegetation of the Bucak Sweetgum Forest Nature Park and Karacaören Dams Environment (Burdur, Turkey) were investigated between 2012 and 2013. We identified 221 bryophyte specimens collected from tree trunks; a total of 37 bryophyte taxa (8 liverworts and 29 mosses) belonging to 19 genera and 15 families were identified. As a result of the evaluation of 29 relevés of different sizes taken from trunks using the Braun-Blanquet method, Leptodonto smithii-Leucodontetum sciuroidis and Cryphaeetum arborae (with both subassociation typicum and subassociation orthotrichetosum diaphani) belonging to the Fabronion pusillae alliance were recorded for the …
The Influence Of Environmental Variables On Punica Granatum L.Assemblages In Subtropical Dry Temperate Woodland In The Districtof Lower Dir, Khyber Pakhtunkhwa, Pakistan, Muhammad Irshad, Nasrullah Khan, Kishwar Ali, Zahid Muhammad
The Influence Of Environmental Variables On Punica Granatum L.Assemblages In Subtropical Dry Temperate Woodland In The Districtof Lower Dir, Khyber Pakhtunkhwa, Pakistan, Muhammad Irshad, Nasrullah Khan, Kishwar Ali, Zahid Muhammad
Turkish Journal of Botany
Punica granatum L. (Wild) is an important fruit-yielding species of the world and a source of income for people, particularly in the Hindukush-Himalayas of Pakistan. Considering its ecological and commercial importance, an attempt was made to provide a primary assessment of its compositional pattern with relation to environmental variables for ecologically unexplored Punica granatum forests located in a subtropical dry temperate zone using multivariate techniques. The vegetation data were collected from 40 Punica granatum forest stands along with the associated environmental data (12 variables) at different locations. Classification of the stands was carried out using Ward?s agglomerative cluster analysis. In …
Arbuscular Mycorrhizal And Dark Septate Endophyte Fungal Associations In Asparagus, Muthukumar Thangavelu, Muthuraja Raji
Arbuscular Mycorrhizal And Dark Septate Endophyte Fungal Associations In Asparagus, Muthukumar Thangavelu, Muthuraja Raji
Turkish Journal of Botany
We studied the arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal associations in five species of pot-grown Asparagus (A. aethiopicus, A. densiflorus, A. setaceus, A. racemosus, and A. umbellatus). Root colonization by AM and DSE fungi and AM spore numbers in the soil were assessed. AM fungal diversity indices like species richness, Shannon-Weiner index, Simpson's index, evenness, and Jaccard's index were determined. Relationships among the fungal and soil variables were also examined. All the species of Asparagus examined were colonized by both AM and DSE fungi, and these associations have been reported for the first time in four species. …
Exogenous Nitric Oxide Protects Against Drought-Induced Oxidativestress In Malus Rootstocks, Linsen Zhang, Xuewei Li, Xifeng Li, Zhou Wei, Mingyu Han, Lixin Zhang, Bingzhi Li
Exogenous Nitric Oxide Protects Against Drought-Induced Oxidativestress In Malus Rootstocks, Linsen Zhang, Xuewei Li, Xifeng Li, Zhou Wei, Mingyu Han, Lixin Zhang, Bingzhi Li
Turkish Journal of Botany
D?rought is a major environmental stress that limits the growth and productivity of fruit trees in semiarid and arid regions. We evaluated the potential of exogenous nitric oxide (NO) to improve the drought tolerance of apple rootstocks (Malus spp.). Leaves of 2-year-old seedlings of drought-sensitive Malus hupehensis (Pamp.) Rehd. And drought-tolerant Malus sieversii (Ledeb.) M.Roem. Rootstocks were sprayed with NO donor sodium nitroprusside (SNP) at 0-400 μmol L-1, and then the plants were subjected to drought stress. Among all SNP treatments, the 300 μmol L-1 SNP treatment mostly alleviated drought-induced ion leakage and the accumulation of malondialdehyde and solu?ble proteins …
Ecological Wood Anatomy Of Fraxinus L. In Turkey (Oleaceae): Intraspecific And Interspecific Variation, Funda Erşen-Bak, Nesi̇me Merev
Ecological Wood Anatomy Of Fraxinus L. In Turkey (Oleaceae): Intraspecific And Interspecific Variation, Funda Erşen-Bak, Nesi̇me Merev
Turkish Journal of Botany
Wood anatomy features of eight taxa (four species) of the genus Fraxinus L. indigenous to Turkey were examined. Wood samples were collected from different altitudes of their natural growth areas. Data were gathered on quantitative anatomical features such as tangential and radial vessel diameters, number of vessels per mm2, length of vessel elements, fibers (lengths, widths, thickness of cell walls, lumen diameters), number of rays per mm, and ray width and height. By using vessel member features, the vulnerability ratio (vessel diameter divided by number of vessels per mm2) and mesomorphy value (vulnerability ratio multiplied by vessel elements length) were …
Oxalis Section Alpinae (Oxalidaceae): Orbicule Diversity And Pollen Grain Morphology, Alicia Lopez, Sonia Rosenfeldt
Oxalis Section Alpinae (Oxalidaceae): Orbicule Diversity And Pollen Grain Morphology, Alicia Lopez, Sonia Rosenfeldt
Turkish Journal of Botany
Orbicule characteristics and pollen morphology were studied using light microscopy and scanning electron microscopy with 13 species of Oxalis section Alpinae, endemic to South America. Orbicules are either homogeneous or heterogeneous in size; surface smooth or with punctuations; margin smooth, lobed, or wavy; rounded, oblong, or irregular shapes; variable clustering. According to orbicule characteristics, six groups are proposed. The Oxalis pollen grain is 3-colpate and the shape is prolate spheroidal, oblate spheroidal, or spheroidal; ambit rounded or triangular. Exine microreticulate, semitectate, brochate. Brochi circular, oval, triangular to polygonal. Lumen with or without content. Sporopollenin generally forming groups that may be …
Biogeographic Divergences In The Iberian Flora. A Morpho-Anatomic,Issr-Based, And Environmental Study Of Iberian Buxus Sempervirens L., Márcia Carvalho, João Rocha, Valdemar Carnide, Sandra Martins, Maurici Mus, Francisco Amich, Rubim Almeida, Claúdia Machado, Berta Gonçalves, Eunice Bacelar, Antonio Crespi
Biogeographic Divergences In The Iberian Flora. A Morpho-Anatomic,Issr-Based, And Environmental Study Of Iberian Buxus Sempervirens L., Márcia Carvalho, João Rocha, Valdemar Carnide, Sandra Martins, Maurici Mus, Francisco Amich, Rubim Almeida, Claúdia Machado, Berta Gonçalves, Eunice Bacelar, Antonio Crespi
Turkish Journal of Botany
Iberian Buxus spp. Are represented by B. Sempervirens, restricted to the Cantabrian, eastern Iberian Peninsula, and northeastern mountain systems, emerging scarcely in Portugal, and by B. Balearica that occurs in the Betic deep river valleys and in the Balearic islands. The genetic affinity existent between fifteen populations of B. Sempervirens was evaluated by seven ISSRs primers. Moreover, leaf morpho-anatomical measurements indicative of leaf performance (such as leaf area, leaf mass per unit area, width, length, shape factor, tissues thickness, stomatal density, and quantification of epi- and intracuticular waxes) and environmental characterization were conducted to get insight into the functional ecology …
Betalains And Expression Of Antioxidant Enzymes During Development Andabiotic Stress In Rivina Humilis L. Berries, Mohammad Imtiyaj Khan, Avinash Kumar, Parvatam Giridhar
Betalains And Expression Of Antioxidant Enzymes During Development Andabiotic Stress In Rivina Humilis L. Berries, Mohammad Imtiyaj Khan, Avinash Kumar, Parvatam Giridhar
Turkish Journal of Botany
This work investigated the betalains profile and associated molecular changes during Rivina humilis L. Berry development and 1 month after inducing stress through elicitors such as salicylic acid (SA, 0.05-0.5 mM) and chitosan (CH, 0.1%-1.0%). The results showed that, during berry development, diphenol oxidase activity of tyrosinase increased, which was reflected in an exponential increase in betalains accumulation. Expression levels of a putative Rivina humilis betanidin-5-O-glucosyltransferase 2 (RhBGT2) remained unchanged, while that of antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) decreased. Treatment with SA (0.1 mM) and CH (0.5%) enhanced betalains accumulation. The pattern of betalains accumulation during berry …
Leaflet Trichome Micromorphology In The Dolentes-Brevipedes Taxonomic Complex (Mimosa L., Mimosoideae), Mariana Grohar, Sonia Rosenfeldt, Matias Morales
Leaflet Trichome Micromorphology In The Dolentes-Brevipedes Taxonomic Complex (Mimosa L., Mimosoideae), Mariana Grohar, Sonia Rosenfeldt, Matias Morales
Turkish Journal of Botany
We studied leaflets of 18 taxa of the genus Mimosa, specifically the Dolentes-Brevipedes taxonomic complex, focusing on micromorphology, type, shape, and density of trichomes. Within the nonglandular trichomes we described 3 types of nonbranched and 2 types of branched trichomes. We also described 2 types of stalked glandular trichomes, extending the recent classifications of trichomes in Mimosa. Multiseriate trichomes with lateral projections, which resemble incipient branching, are described here for many taxa. Most studied taxa have pubescent leaflets and show great variability in trichome density values. We also found 3 different types of blade margins with variation in type, alignment, …