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- Publication
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- Turkish Journal of Botany (54)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (11)
- Inquiry: The University of Arkansas Undergraduate Research Journal (4)
- Kansas Agricultural Experiment Station Research Reports (4)
- Journal of the Arkansas Academy of Science (2)
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News From Cart, Donald Padgett
Keep The License Agreements Coming: The Effects Of J.E.M. Ag Supply, Incorporated V. Pioneer Hi-Bred International, Incorporated On Universities' Use Of Intellectual Property Laws To Protect Their Plant Genetic Research, Timothy P. Daniels
Brigham Young University Education and Law Journal
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.
Propagation Of Thornless Arkansas Blackberries By Hardwood Cuttings, Mark Bray, Curt C. Rom, John R. Clark
Propagation Of Thornless Arkansas Blackberries By Hardwood Cuttings, Mark Bray, Curt C. Rom, John R. Clark
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Effects of auxin application and cutting location on canes on adventitious root development in hardwood cuttings of three Arkansas thornless blackberry cultivars were studied. Dormant canes were collected from one-year-old plants of ‘Apache’, ‘Arapaho’, and ‘Navaho’ and stored in a cold room until February. Two- or three-node cuttings were taken from the canes at apical, mid, and basal locations along the cane and were placed under intermittent mist in a perlite-filled greenhouse bed. Cuttings were either untreated or treated with auxin indole-3-butyric acid (IBA), applied as a liquid quick dip at 0.3%. In general, cutting diameter was greatest for basal …
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 4 2003, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 4 2003, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Chitosanase May Enhance Anti-Fungal Defense Responses In Transgenic Tobacco, Bill L. Hendrix, James Mcd. Stewart
Chitosanase May Enhance Anti-Fungal Defense Responses In Transgenic Tobacco, Bill L. Hendrix, James Mcd. Stewart
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Chitosanase is an enzyme, similar to chitinase, capable of hydrolyzing the β-1,4-linkages between N-acetyl-D-glucosamine and D-glucosamine residues in partially acetylated chitosan polymers found in fungal cell walls. When attacked by pathogenic fungi, many plants exploit this hydrolytic action as a component of a larger post-attack defense response, but these enzymes may also play a role in the initial plant-pathogen interaction via the generation of elicitors resulting from the hydrolysis of fungal cell walls. To gain insight into these mechanisms, a Paenbacillus chitosanase was cloned, sequenced, and modified for plant expression. The modified gene was delivered to tobacco (Nicotiana tabacum L. …
Effect Of Triticum Turgidum Cytoplasm On Test Weight Of Soft Red Winter Wheat, Juan Mayta, Robert Bacon, John Kelly, Edward Gbur
Effect Of Triticum Turgidum Cytoplasm On Test Weight Of Soft Red Winter Wheat, Juan Mayta, Robert Bacon, John Kelly, Edward Gbur
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The effect of Triticum turgidum cytoplasm on soft red winter wheat (T. aestivum) was studied relative to test weight (bushel weight) and agronomic traits such as heading date, resistance to leaf rust, and plant color. The cytoplasmic effects were studied in three genetic backgrounds by crossing the cultivars Jackson, Pioneer 2684, and Wakefield with a plant introduction PI590277 that carried T. turgidum cytoplasm. Twelve alloplasmic and euplasmic populations were developed through a backcrossing procedure. The study used a micro test weight procedure to compare F4 lines within the populations for test weight. The data for other agronomic traits were taken …
Effects Of Virus Infection On Release Of Volatile Organic Compounds From Insect-Damaged Bean, Phaseolus Vulgaris, Sarah E. Sossamon, Britney K. Jackson, B. Alison Drumwright, Kenneth L. Korth, Gisela F. Erf
Effects Of Virus Infection On Release Of Volatile Organic Compounds From Insect-Damaged Bean, Phaseolus Vulgaris, Sarah E. Sossamon, Britney K. Jackson, B. Alison Drumwright, Kenneth L. Korth, Gisela F. Erf
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Insects can serve as important vectors of plant pathogens, especially viruses. Insect feeding on plants causes the systemic release of a wide range of plant volatile compounds that can serve as an indirect plant defense by attracting natural enemies of the herbivorous insect. Previous work suggests that the Mexican bean beetle (Epilachna varivestis) prefers to feed on plants infected by either of two viruses that it is known to transmit: Southern bean mosaic virus (SBMV) or Bean pod mottle virus (BPMV). A possible explanation for the preferred feeding on virus-infected tissues is that the beetles are attracted by volatile signals …
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.
Chitosanase May Enhance Anti-Fungal Defense Responses In Transgenic Tobacco, Bill L. Hendrix
Chitosanase May Enhance Anti-Fungal Defense Responses In Transgenic Tobacco, Bill L. Hendrix
Inquiry: The University of Arkansas Undergraduate Research Journal
Fungicides are expensive, dangerous, and can be harmful to the environment, but they are often necessary for profitable farming operations. New technologies may soon allow farmers to replace these chemicals with genetically engineered plants producing antifungal enzymes that degrade fungal cell walls. To explore this option, a Paenbacillus chitosanase gene was cloned, sequenced, and modified for plant expression. The modified gene was delivered to tobacco (Nicotiana tabacum L cv. Xanthine) leaf disks via Agrobacterium tumenfaciens-mediated transformation. The putative GMOs were tested for transgene integration, transcription, and translation. Confirmed transformants were then screened for enhanced responses to a Rhizoctonia solani cell …
Engineering For Expression Of The Cold Regulated Barley Protein Hvcr21 In E. Coli, Kathleen Graupman
Engineering For Expression Of The Cold Regulated Barley Protein Hvcr21 In E. Coli, Kathleen Graupman
The Journal of Undergraduate Research
HVCR21 is a barley protein known to be cold regulated at the mRNA level. However, its function as well as the affect of low temperature on its translation are unknown. The purpose of this project was to engineer E. coli to express recombinant HVCR21. PGR primers were designed for the 5' and 3' ends of the HVCR21 coding region. The primers were also designed with a 5' SacI restriction site and a 3' Pst I restriction site. After ligation of the PCR product into the pCR4-TOPO vector, bacteria were transformed and plated and the successful transformant verified by PCR. The …
The Role Of Natural Calcium Oxalate Crystals In Plant Defense Against Chewing Insects, Sarah J. Doege
The Role Of Natural Calcium Oxalate Crystals In Plant Defense Against Chewing Insects, Sarah J. Doege
Inquiry: The University of Arkansas Undergraduate Research Journal
Calcium oxalate is the most abundant insoluble mineral found in plants and it is common among many plant families. Calcium oxalate crystals in plants can appear as irregular rectangles, spiked balls, or needles. The formidable appearance of these crystals has lead to speculation that they might serve as a form of pest control by deterring chewing insects. We utilized mutant plant lines to assess the effects of plant calcium oxalate crystals on the survival and feeding habits of chewing insects. We have taken advantage of calcium oxalate-deficient (cod) mutants of the barrel medic, Medicago truncatula Calcium oxalate crystals accumulate in …
Germination, Growth And Biomass Accumulation As Influenced By Seed Size In Mesua Ferrea L., A. Arunachalam, M. L. Khan, N. D. Singh
Germination, Growth And Biomass Accumulation As Influenced By Seed Size In Mesua Ferrea L., A. Arunachalam, M. L. Khan, N. D. Singh
Turkish Journal of Botany
Mesua ferrea L. was evaluated for its germination, seedling growth and biomass across four seed size classes. The production of two- and three-seeded fruits was high. The viability of the seeds was 58-81%. Germination was positively correlated with seed weight. Heavier seeds showed early and rapid germination. The contribution of leaves to total biomass yield was 27-60 % in 1-month old seedlings. Carbon content was also related with plant length and weight in the seedlings. The study concludes that the variations in seed size have a substantial influence on growth and biomass accumulation in Mesua ferrea. Such variation also helps …
The Flora Of Ahırdağı (Afyonkarahisar) And Its Environs, Mustafa Kargioğlu
The Flora Of Ahırdağı (Afyonkarahisar) And Its Environs, Mustafa Kargioğlu
Turkish Journal of Botany
The flora of Ahırdağı was investigated between 1996 and 2000. In the vegetation periods, a total of 965 plant specimens were collected. At the end of the study 603 taxa at species and subspecies ranks belonging to 299 genera and 80 families had been determined. Seventy-nine taxa are endemic, and the ratio is 13.10 %. The phytogeographical spectra of the species are as follows: Mediterranean 13.10 %, Irano-Turanian 11.61 %, Euro-Siberian 11.61 % and phytogeographically unknown 63.68 %. Threatened categories were proposed for the 79 endemic taxa according to IUCN categories.
New Records For The Genus Heterodinium Kofoid (Dinophyceae) From Turkish Coastal Waters (North-Eastern Mediterranean), Sevi̇m Polat, Tufan Koray
New Records For The Genus Heterodinium Kofoid (Dinophyceae) From Turkish Coastal Waters (North-Eastern Mediterranean), Sevi̇m Polat, Tufan Koray
Turkish Journal of Botany
Three species of the genus Heterodinium Kofoid are reported for the first time in Turkish coastal waters, in the north-eastern Mediterranean. The identified species are Heterodinium mediocre Kofoid, H. angulatum Kofoid & Michener and H. inaequale Kofoid. The morphological characteristics of these three species are described and information about their distribution is given.
Flora Hellenica Vol.2 (2002), K. Hüsnü Can Başer
Flora Hellenica Vol.2 (2002), K. Hüsnü Can Başer
Turkish Journal of Botany
No abstract provided.
Flora Of Kumalar Mountain (Afyon), Ekrem Akçi̇çek
Flora Of Kumalar Mountain (Afyon), Ekrem Akçi̇çek
Turkish Journal of Botany
This study was carried out to determine the flora of Kumalar Mountain (Afyon) which is located in the transition zone between the Aegean and Central Anatolia. After the evaluation of 2204 plant specimens collected from the research area between 1996 and 2001, 89 families, 388 genera and 898 taxa were identified. Thirty-two taxa are cultivated and the rest are native. The number of endemic taxa is 122 (14.1%). The phytogeographic elements represented in the study area are as follows: Irano-Turanian 133 (15.4%), Mediterranean 99 (11.4%) and Euro-Siberian 73 (8.4%). The remaining 561 (64.8%) taxa belong to a few phytogeographic regions …
The Hedwigia Ciliata (Hedw.) Ehr. Ex P.Beauv. Complex In Turkey, With A New Record, H. Ciliata Var. Leucophaea Bruch & Schimp. (Hedwigiaceae, Bryopsida), Adnan Erdağ, Mesut Kirmaci, Harald Kürschner
The Hedwigia Ciliata (Hedw.) Ehr. Ex P.Beauv. Complex In Turkey, With A New Record, H. Ciliata Var. Leucophaea Bruch & Schimp. (Hedwigiaceae, Bryopsida), Adnan Erdağ, Mesut Kirmaci, Harald Kürschner
Turkish Journal of Botany
Hedwigia ciliata (Hedw.) Ehrh. ex P.Beauv. var. leucophaea Bruch & Schimp. is recorded as a new taxon for the bryophyte flora of Turkey. It belongs to the H. ciliata complex sensu lata that consists of three different taxa: H. stellata, H. ciliata var. ciliata, and H. ciliata var. leucophaea. As all three taxa occur in Turkey, a key to the species, descriptions, illustrations of the diagnostic characters, as well as their distribution in Turkey are presented.
Isozyme Variations In Some Aegilops L. And Triticum L. Species Collected From Central Anatolia, Mehmet Karcicio, Afi̇fe İzbirak
Isozyme Variations In Some Aegilops L. And Triticum L. Species Collected From Central Anatolia, Mehmet Karcicio, Afi̇fe İzbirak
Turkish Journal of Botany
In this study the aspartate aminotransferase (AAT, E.C. 2.6.1.1), phosphoglucomutase (PGM, E.C. 5.4.2.2) and phosphoglucose isomerase (PGI, E.C. 5.3.1.9) isozyme patterns of nine different diploid and tetraploid wild wheat species belonging to the Aegilops L. and Triticum L. genera were analysed electrophoretically, using horizontal starch gel and non-denaturating polyacrylamide gel (only for AAT). All species were found to have three AAT isozyme zones (except for the AAT of Aegilops speltoides Tausch on starch gel) on both gels. While the migration distances of AAT-1 isozyme were similar, the AAT-2 and AAT-3 band patterns were different on both gels. A single PGI …
Flora Of Kızıldağ Mountain (Isparta) And Environs, Bi̇rol Mutlu, Sadik Eri̇k
Flora Of Kızıldağ Mountain (Isparta) And Environs, Bi̇rol Mutlu, Sadik Eri̇k
Turkish Journal of Botany
This paper describes a floristic study of Kızıldağ (Isparta/Turkey) and its environs. The study was carried out during 1993-1996 and 1515 vascular plant samples were collected. After the identification of the specimens, the total flora has been determined as 786 taxa belonging to 770 species, 371 genera and 84 families. The endemism rate of the area is 15.5% for the 122 taxa. The largest 3 families are Asteraceae (89 species), Fabaceae (65 species) and Poaceae (62 species). The largest genera are Ranunculus L. (13 species), Allium L. (13 species) and Veronica L. (12 species). The phytogeographical spectrum of the species …
Polyphenol Oxidase Activity During Rooting In Cuttings Of Grape (Vitis Vinifera L.) Varieties, Hayrullah Yilmaz, Tuncer Taşkin, Bi̇rol Otludi̇l
Polyphenol Oxidase Activity During Rooting In Cuttings Of Grape (Vitis Vinifera L.) Varieties, Hayrullah Yilmaz, Tuncer Taşkin, Bi̇rol Otludi̇l
Turkish Journal of Botany
Polyphenol oxidase (PPO) activity was investigated during rooting in cuttings from three different grape cultivars (Vitis vinifera L. cvs. Muscat, Cardinal and Perlelte), and the enzyme activity and rooting ability were compared. Rooting was observed on the Muscat and Perlelte cuttings, but not on the Cardinal cuttings. PPO activity started to increase in the early stage of the experiment, and decreased after root emergence in the Muscat and Perlelte cuttings. However, enzyme activity started to increase in the early stages and continued throughout the experiment in the Cardinal cuttings. No apparent correlation was found between PPO activity and rooting ability …
Macrofungi Of Yahyalı Region (Kayseri), Giyasetti̇n Kaşik, Celaleddi̇n Öztürk, Azi̇z Türkoğlu, Hasan Hüseyi̇n Doğan
Macrofungi Of Yahyalı Region (Kayseri), Giyasetti̇n Kaşik, Celaleddi̇n Öztürk, Azi̇z Türkoğlu, Hasan Hüseyi̇n Doğan
Turkish Journal of Botany
Some macrofungi specimens were collected from Yahyalı (Kayseri) province in 2000-2001. As a result of field and laboratory studies, 94 taxa belonging to 28 families were identified. Nine species belong to Ascomycotina and 85 to Basidiomycotina. The distribution, habitat and collecting numbers of the identified species are given.
Additional Records Of Hieracium L. And Pilosella Hill (Compositae: Lactuceae) For The Flora Of Turkey, Kami̇l Coşkunçelebi̇, Osman Beyazoğlu
Additional Records Of Hieracium L. And Pilosella Hill (Compositae: Lactuceae) For The Flora Of Turkey, Kami̇l Coşkunçelebi̇, Osman Beyazoğlu
Turkish Journal of Botany
A further collection of Hieracium L. and Pilosella Hill (Compositae) from NE Anatolia is presented here. In addition to the 32 second records, 7 new records of the genus Hieracium (H. pseudosvaneticum Peter s.l., H. biebersteinii Litw. & Zahn, H. callichlorum Litw. & Zahn, H. camkorijense Zahn s.l.) and Pilosella (P. brachiata (Bertol. & DC.) F.W.Schultz & Sch. Bip, P. fennica (Norrl.) Norrl. em. Soják, P. procera (Fr.) F.W.Schultz & Sch. Bip.) are established for Anatolia in this study.
A New Record For Turkey From East Anatolia: Alyssum Heterotrichum Boiss., Murat Ünal, Lütfi̇ Behçet
A New Record For Turkey From East Anatolia: Alyssum Heterotrichum Boiss., Murat Ünal, Lütfi̇ Behçet
Turkish Journal of Botany
Alyssum heterotrichum Boiss. (Brassicacecae) from east Anatolia (B9 Van) is a new record for the flora of Turkey.
Macrofungi Of Erzurum Province, Kenan Demi̇rel, Abdullah Kaya, Yusuf Uzun
Macrofungi Of Erzurum Province, Kenan Demi̇rel, Abdullah Kaya, Yusuf Uzun
Turkish Journal of Botany
This study was conducted on macrofungi specimens collected from Erzurum province between 1997 and 2000. As a result, 114 macrofungi species belonging to 29 families and two classes were identified. Two of them, Melanoleuca humilis (Pers.: Fr.) Sing. and Tricholoma lascivum (Fr.) Gill. (Tricholomataceae), are new records for the macrofungi flora of Turkey.
Heavy Metal Levels In Some Macrofungi, Fadi̇me Yilmaz, Mustafa Işiloğlu, Melek Merdi̇van
Heavy Metal Levels In Some Macrofungi, Fadi̇me Yilmaz, Mustafa Işiloğlu, Melek Merdi̇van
Turkish Journal of Botany
This study was done on edible, inedible and poisonous macrofungi collected around the Balıkesir-Manisa highway from two different areas (roadside and background area) in 1998-1999. Cu, Zn, Fe, Mn, Co, Cd, Ni and Pb contents were determined by atomic absorption spectrophotometer in 256 samples belonging to 24 macrofungi species. The habitat, edibility and distribution of the taxa in the families were listed. According to mean dry weight (DW), Mn, Co and Cd contents were high in Omphalotus olearius (DC.: Fr.) Fr., which is a poisonous macrofungus species compared to the others; however, Fe levels were also extremely high. The lowest …
In Vitro Pollen Germination And Pollen Tube Characteristics In Tetraploid Red Clover (Trifolium Pratense L., H. Nurhan Büyükkartal
In Vitro Pollen Germination And Pollen Tube Characteristics In Tetraploid Red Clover (Trifolium Pratense L., H. Nurhan Büyükkartal
Turkish Journal of Botany
The morphological characteristics, fertility and in vitro germination of natural tetraploid red clover (Trifolium pratense L.) pollen were examined as well as the characteristics of pollen tubes and callose formation. Pollen grains of red clover are tricolporate and usually the germination of pollen is monosphonic. Among the pollen tubes that were formed under in vitro conditions, in addition to those that went through the normal growth process, poorly or non-grown pollen tubes were also observed. In addition, some abnormalities in the form of callose deposition were observed in the pollen tubes.
Two New Records For The Lichen Flora Of Turkey, Ayşen Özdemi̇r Türk
Two New Records For The Lichen Flora Of Turkey, Ayşen Özdemi̇r Türk
Turkish Journal of Botany
Two species of lichenized Ascomycotina, Cyphelium notarisii (Tul.) Blomb. & Forss. and Strangospora moriformis (Ach.) Stein are newly reported for Turkey. Both species were collected from Pinus nigra subsp. pallasiana in Eskişehir province.
The Anatomical And Palynological Properties Of Alyssum Obtusifolium Steven Ex Dc. (Brassicaceae), Nermi̇n Orcan, Riza Bi̇nzet
The Anatomical And Palynological Properties Of Alyssum Obtusifolium Steven Ex Dc. (Brassicaceae), Nermi̇n Orcan, Riza Bi̇nzet
Turkish Journal of Botany
Alyssum obtusifolium Steven ex DC. was explored in terms of its anatomical and palynological aspects. The root is perennial and it has alternating concentric zones of xylem with large and small vessels respectively. The number of vascular bundles is 13-15 in the stem. The leaves are isolateral and have stomata cells which are anisocytic. Both surfaces of the leaves are covered with stellate hairs. The pollen type of the specimens is tricolpate.
Plantlet Regeneration In Abies Cilicica Carr. And Abies Cilicica X Abies Nordmanniana Hybrid Via Somatic Embryogenesis, Bozena Vookova, Andrej Kormutak
Plantlet Regeneration In Abies Cilicica Carr. And Abies Cilicica X Abies Nordmanniana Hybrid Via Somatic Embryogenesis, Bozena Vookova, Andrej Kormutak
Turkish Journal of Botany
Somatic embryogenesis was initiated from immature zygotic embryos of Abies cilicica Carr. and its hybrid A. cilicica x A. nordmanniana. Schenk and Hildebrandt medium (SH) supplemented with 5 µM benzylaminopurine was used as the initiation medium. In A. cilicica, the initiation of embryonal suspensor mass (ESM) frequency ranged from 5.4 to 63.5%, and 28.6% of these cell lines formed mature somatic embryos. In A. cilicica x A. nordmanniana, from 3 to 27.6% of zygotic embryos formed ESM, and maturation of somatic embryos was observed in 34.8% lines. For somatic embryo maturation, Murashige, Skoog and SH media supplemented with 4% maltose …