Studies On Cytotoxicity Induced By Des And Sa In Vicia Faba Var. Major,
2010
TÜBİTAK
Studies On Cytotoxicity Induced By Des And Sa In Vicia Faba Var. Major, Mohd Gulfishan, Ainul Haq Khan, Tarik Ahmad Bhat
Turkish Journal of Botany
The effect of diethyl sulphate (DES) and sodium azide (SA) was studied on the meiotic behaviour of Vicia faba L. var. major in the M1 generation. Five concentrations of SA (0.01%, 0.02%, 0.03%, 0.04%, and 0.05%) were combined with DES (0.02%) to study the synergistic and antagonistic effects of these 2 mutagens. A dose-dependent increase in chromosomal aberrations was recorded in populations treated with both the mutagens individually and their combination doses. The main chromosomal aberrations were stickiness, precocious separations, univalents, multivalents, laggards, unequal separations of chromosomes, micronuclei, disturbed polarity, multinucleate condition, and cytomixis. The stickiness and stray bivalents at …
New Additions To The Turkish Macromycota From Bingöl Province (Turkey),
2010
TÜBİTAK
New Additions To The Turkish Macromycota From Bingöl Province (Turkey), Yusuf Uzun, Abdullah Kaya, Mustafa Emre Akçay, Kenan Demi̇rel
Turkish Journal of Botany
Hymenoscyphus scutula (Pers.) W. Phillips, Crepidotus vulgaris Hesler & A.H. Sm., Psilocybe merdicola Huijsman, and Tricholoma inamoenum (Fr.) Gillet are recorded for the first time from Turkey. Short descriptions and photographs of the taxa are given.
Comparative Pharmacognostic Studies On The Barks Of Four Ficus Species,
2010
TÜBİTAK
Comparative Pharmacognostic Studies On The Barks Of Four Ficus Species, K Babu, Gokul Shankar Sabesan, Sadananda Rai
Turkish Journal of Botany
The barks of 4 Ficus species, namely F. racemosa, F. virens, F. religiosa and F. benghalensis, are important ingredients in many Ayurvedic and traditional formulations. The barks are considered to be very effective in various treatments, such as diabetes, skin diseases, ulcers, and nervous disorders. During market research, we observed that various species of Ficus barks were sold in Indian market under traditional names, such as Plaksah, Udumbarah, Asvatthah, and Vatah. The barks of the species mention above are usually interchanged or adulterated with other species of Ficus because of the limited knowledge in identification and differentiation. Therefore, a detailed …
Effects Of Moist Chilling, Gibberellic Acid, And Scarification On Seed Dormancy In The Rare Endemic Pedicularis Olympica (Scrophulariaceae), Serap Kirmizi, Gürcan Güleryüz, Hülya Arslan, Fatma Selcen Sakar
Turkish Journal of Botany
We investigated the germination requirements of a rare endemic plant species, Pedicularis olympica Boiss. (Scrophulariaceae), which grows in wet habitats on Uludağ Mountain, Turkey. We studied the effects of scarification, moist chilling (+4 °C) for 15 days, different doses of gibberellic acid (GA_{3}; 100, 150, and 250 ppm) and combined hormone and moist chilling treatments under dark (20 °C) and photoperiod (20/10 °C; 12/12 h, respectively) conditions. GA_{3} was able to break dormancy. The highest germination rate was found in the seeds treated with 250 ppm GA_{3}; 64% of these seeds germinated when treated with moist chilling and incubated in …
Seed Morphology Of Ebenus L. Species Endemic To Turkey,
2010
TÜBİTAK
Seed Morphology Of Ebenus L. Species Endemic To Turkey, Fatma Bayrakdar, Zeki̇ Aytaç, Zeki̇ye Suludere, Selami̇ Candan
Turkish Journal of Botany
In the present study, seed surface morphology of species of the genus Ebenus L. in Turkey, all of which are endemic, was studied. E. plumosa var. speciosa has the biggest and E. laguroides var. laguroides has the smallest seeds. The seed shapes are spheroid in E. reesei, orbiculate in E. pisidica, and oblong-spheroid in others. Ornamentation is striate in E. macrophylla, rugose in E. haussknechtii, and reticulate or multi-reticulate in others. Microphylle is subterminal in all Turkish Ebenus species.
Embryological And Cytochemical Features Of Scilla Autumnalis L.,
2010
TÜBİTAK
Embryological And Cytochemical Features Of Scilla Autumnalis L., Zeynep Mi̇ne Coşkun, Meral Ünal
Turkish Journal of Botany
Nucellar epidermal cells in the micropylar region of Scilla autumnalis L. differentiate into a nucellar cap. It secretes a PAS-positive exudate filling the micropyle. A group of cells at the chalazal end of the nucellus forms a hypostase. Close to the antipodals, the hypostase cells contain abundant starch grains, suggesting a function as a storage tissue. Another ovular structure is the obturator. It secretes an exudate that stains deeply with PAS reaction, and it takes a role in directing the growth of pollen tubes toward the micropyle. Cytochemical tests in the mature embryo sac indicate the presence of high amounts …
Pollen Morphology Of The Genus Fritillaria L. (Liliaceae) In Turkey,
2010
TÜBİTAK
Pollen Morphology Of The Genus Fritillaria L. (Liliaceae) In Turkey, Mehtap Tekşen, Zeki̇ Aytaç, Nur Münevver Pinar
Turkish Journal of Botany
Pollen grains of 39 taxa of the genus Fritillaria L. in Turkey were examined by light and scanning electron microscopy. Detailed pollen morphological characteristics are given for these taxa. Our investigation shows that the sculpturing of the exine provides valuable characters for separating species. In particular, sculpturing of the exine at the proximal face turned out to be taxonomically important. Six types of ornamentation were determined: reticulate, reticulate-perforate, suprareticulate, rugulate-reticulate, psilate-perforate, and perforate. On the basis of exine sculpturing, the sulcus membrane, and the apex sulcus, 5 main pollen types are recognised.
Species Composition And Diversity Of Epipelic Algae In Balık Lake (Şavşat-Artvin, Turkey),
2010
TÜBİTAK
Species Composition And Diversity Of Epipelic Algae In Balık Lake (Şavşat-Artvin, Turkey), Bülent Şahi̇n, Bülent Akar, İmran Bahçeci̇
Turkish Journal of Botany
The species composition and diversity of the epipelic algae of Balık Lake were investigated between May and October 2008. A total of 39 taxa were determined, and Cyclotella meneghiniana, Craticula cuspidata, Closterium strigosum, Cocconeis placentula var. euglypta, and Amphora ovalis were the most conspicuous algae, regarding frequency of occurrence and relative abundance in the epipelic algal flora. While the highest total cell number of the epipelic community was 26,214 cells/cm^2 in October, the lowest was 23,644 cells/cm^2 in July. The highest species diversity index (H^{'}) value was 2.26, in June.
Classification Of Some Plant Species According To Grime’S Strategies In A Quercus Cerris L. Var. Cerris Woodland In Samsun, Northern Turkey, Mahmut Kilinç, Nesli̇han Karavi̇n, Hamdi̇ Güray Kutbay
Turkish Journal of Botany
This study was carried out on 2 permanent plots of Quercus cerris L. var. cerris woodland in the Kurupelit region of Samsun, northern Turkey. Grime's CSR strategies were determined for 85 plant species from the 2 study plots (61 and 50 species from plot 1 and plot 2, respectively) according to the method that was applied. Most of the plant species in both plots had secondary and tertiary strategies, and this suggests that plants were exposed to more than one pressure factor. In both plots, CR (competitor-ruderal) was the most common strategy.
Four New Records For The Benthic Diatoms (Genera Cocconeis, Seminavis, Synedra, And Trachysphenia) From The Aegean Sea,
2010
TÜBİTAK
Four New Records For The Benthic Diatoms (Genera Cocconeis, Seminavis, Synedra, And Trachysphenia) From The Aegean Sea, Fatma Sabanci, Tufan Koray
Turkish Journal of Botany
Cocconeis pseudomarginata W.Greg., Seminavis robusta Danielidis & D.G.Mann, Synedra gaillonii (Bory) Ehrenb. var. macilenta (Grunow) H.Perag., and Trachysphenia australis Petit var. rostellata Hust. from Bacillariophyceae were reported for the first time from Turkish coastal waters. Additionally, Synedra gaillonii var. macilenta and Trachysphenia australis var. rostellata were the first records at variety level for Mediterranean coasts. Morphological characteristics of these species were given in detail, and information on their distribution was provided.
The Diatoms Of Asartepe Dam Lake (Ankara), With Environmental And Some Physicochemical Properties,
2010
TÜBİTAK
The Diatoms Of Asartepe Dam Lake (Ankara), With Environmental And Some Physicochemical Properties, Tahi̇r Atici, Emi̇ne Olcay Obali
Turkish Journal of Botany
The shoreline benthic diatoms of Asartepe Dam Lake were identified from different habitats (epipelic, epiphytic, and epilithic) at 7 sampling stations between April 2003 and June 2004. In the investigation, a total of 93 taxa were identified. Of those, Cymbella affinis Kütz., Navicula radiosa Kütz., Ulnaria ulna (Nitzsch) Compère, Pinnularia borealis Ehrenb., Amphora ovalis (Kütz.) Kütz., Cyclotella ocellata Pant. and Nitzschia dissipata (Kütz.) Grunow were observed and abundant at all stations. Some physical and chemical water quality parameters were measured and correlated with biological parameters.
Selecting Strawberry Cultivars For Winter Greenhouse Production,
2010
University of Nebraska-Lincoln
Selecting Strawberry Cultivars For Winter Greenhouse Production, Ellen T. Paparozzi, Stacy A. Adams, George E. Meyer, M. Elizabeth Conley, Vicki L. Schlegel, Erin E. Blankenship, Paul E. Read
Department of Agronomy and Horticulture: Faculty Publications
Costs of transportation and food safety concerns have spawned an increase in public support of locally grown vegetables and fruit. With this in mind, a two-phase investigation was planned with the goal of combining low start up costs for sustainable greenhouse production with selection of strawberry cultivars that would provide the greatest number and largest size of berries. Additionally, berries from each cultivar will be analyzed for their beneficial nutraceutical properties to determine if there is a difference among cultivars.
Fine Mapping The Soybean Aphid Resistance Gene Rag1 In Soybean,
2010
University of Illinois
Fine Mapping The Soybean Aphid Resistance Gene Rag1 In Soybean, Ki-Seung Kim, Stephanie Bellendir, Karen A. Hudson, Curtis B. Hill, Glen L. Hartman, D. L. Hyten, Matthew E. Hudson, Brian W. Diers
Department of Agronomy and Horticulture: Faculty Publications
The soybean aphid (Aphis glycines Matsumura) is an important soybean [Glycine max (L.) Merr.] pest in North America. The dominant aphid resistance gene Rag1 was previously mapped from the cultivar ‘Dowling’ to a 12 cM marker interval on soybean chromosome 7 (formerly linkage group M). The development of additional genetic markers mapping closer to Rag1 was needed to accurately position the gene to improve the effectiveness of markerassisted selection (MAS) and to eventually clone it. The objectives of this study were to identify single nucleotide polymorphisms (SNPs) near Rag1 and to position these SNPs relative to Rag1. …
A High Density Integrated Genetic Linkage Map Of Soybean And The Development Of A 1536 Universal Soy Linkage Panel For Quantitative Trait Locus Mapping,
2010
USDA-ARS, Soybean Genomics and Improvement Laboratory, Beltsville, Maryland
A High Density Integrated Genetic Linkage Map Of Soybean And The Development Of A 1536 Universal Soy Linkage Panel For Quantitative Trait Locus Mapping, D. L. Hyten, Ik-Young Choi, Qijian Song, James E. Specht, Thomas E. Carter Jr., Randy C. Shoemaker, Eun-Young Hwang, Lakshmi K. Matukumalli, P. B. Cregan
Department of Agronomy and Horticulture: Faculty Publications
Single nucleotide polymorphisms (SNPs) are the marker of choice for many researchers due to their abundance and the high-throughput methods available for their multiplex analysis. Only recently have SNP markers been available to researchers in soybean [Glycine max (L.) Merr.] with the release of the third version of the consensus genetic linkage map that added 1141 SNP markers to the map. Our objectives were to add 2500 additional SNP markers to the soybean integrated map and select a set of 1536 SNPs to create a universal linkage panel for high-throughput soybean quantitative trait locus (QTL) mapping. The GoldenGate assay …
Crop Registration: The Pathway To Public Access Of Plant Genetic Materials To Build Crops For The Future,
2010
USDA, ARS, National Center for Genetic Resources Preservation
Crop Registration: The Pathway To Public Access Of Plant Genetic Materials To Build Crops For The Future, D. D. Ellis, K. A. Garland-Campbell, J. A. Grotenhuis, M. M. Jenderek, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
Starting in 1926 and continuing for 80+ yr, 11,241 crop genetic materials have been registered as of 31 Dec. 2008. The crop registration process is an important pathway to publically describe and document new and useful genetic materials and to incorporate these into the public domain via the National Plant Germplasm System (NPGS). Crop Registration materials are now searchable via the Germplasm Resources Information Network (GRIN) and demand for registered materials remains strong with more than 9150 registered accessions distributed in the past 26 yr by the NPGS. Guidelines continue to evolve to accommodate global factors effecting germplasm exchange such …
Efficacy Of Singular And Stacked Brown Midrib 6 And 12 In The Modification Of Lignocellulose And Grain Chemistry,
2010
USDA-ARS
Efficacy Of Singular And Stacked Brown Midrib 6 And 12 In The Modification Of Lignocellulose And Grain Chemistry, Scott E. Sattler, Deanna L. Funnell-Harris, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
In sorghum, brown midrib (bmr) 6 and 12 impair the last two steps of monolignol synthesis. bmr genes were introduced into grain sorghum to improve the digestibility of lignocellulosic tissues for grazing or bioenergy uses following grain harvest. Near-isogenic grain sorghum hybrids (AWheatland X RTx430) were developed containing bmr6, bmr12, and the bmr6 bmr12 double mutant (stacked), and their impacts were assessed in a two-year field study. The bmr genes did not significantly impact grain or lignocellulosic tissue yield. Lignocellulosic tissue from bmr6, bmr12, and stacked hybrids had reduced lignin content and increased in …
Heterosis In Sweet Sorghum
And Selection Of A New Sweet Sorghum Hybrid
For Use In Syrup Production In Appalachia,
2010
University of Kentucky
Heterosis In Sweet Sorghum And Selection Of A New Sweet Sorghum Hybrid For Use In Syrup Production In Appalachia, T. W. Pfeiffer, M. J. Bitzer, J. J. Toy, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
Although heterosis is well established in grain and forage sorghum [Sorghum bicolor (L.) Moench], reports of heterosis in sweet sorghum are limited to results from grain sorghum × sweet sorghum hybrids. Recent development of cytoplasmic male-sterile sweet sorghum lines allows creation of sweet sorghum hybrids for research and industry. Male sterility may also affect allocation of photosynthate to plant parts, creating the potential to increase sugar content in stems by eliminating seed as a sink. The objectives of this study were to compare performance of A3 cytoplasmic male-sterile lines and A3 cytoplasmic male-sterile hybrids to fertile B …
Influences Of Wind And Sandblasting On The
Endangered Blowout Penstemon,
2010
University of Nebraska-Lincoln
Influences Of Wind And Sandblasting On The Endangered Blowout Penstemon, James Stubbendieck, Cheryl D. Dunn, Heidi L. Hillhouse, L. M. Landholt
Department of Agronomy and Horticulture: Faculty Publications
Blowout penstemon Penstemon haydenii is a federally endangered species growing only in areas with active wind erosion in sand dunes of the central United States. This early seral species declines as the blowout habitat stabilizes, allowing later seral species to increase. Blowout penstemon populations and plant size declined in the 1990s when precipitation was higher than normal, resulting in reduced sand movement. We conducted a greenhouse experiment to determine whether blowing sand influenced vigor and persistence of blowout penstemon seedlings. Treatments were wind, sandblasting, wind with sandblasting, and a control. The wind treatment was a constant 14 km h–1 …
Fine Mapping Of The Scn Resistance Locus Rhg1-B
From Pi 88788,
2010
University of Illinois
Fine Mapping Of The Scn Resistance Locus Rhg1-B From Pi 88788, Myungsik Kim, David L. Hyten, Andrew F. Bent, Brian W. Diers
Department of Agronomy and Horticulture: Faculty Publications
Soybean cyst nematode (SCN) (Heterodera glycines Ichinohe) is the most economically damaging soybean [Glycine max (L.) Merr.] pest in the USA and genetic resistance is a key component for its control. Although SCN resistance is quantitative, the rhg1 locus on chromosome 18 (formerly known as Linkage Group G) confers a high level of resistance. The objective of this study was to fi ne-map the rhg1-b allele that is derived from plant introduction (PI) 88788. F2 and F3 plants and F3:4 lines from crosses between SCN resistant and susceptible genotypes were tested with genetic markers to …
High-Throughput Snp Discovery And Assay
Development In Common Bean,
2010
USDA, Agricultural Research Service
High-Throughput Snp Discovery And Assay Development In Common Bean, David L. Hyten, Qijian Song, Edward W. Fickus, Charles V. Quigley, Jong-Sung Lim, Ik-Young Choi, Eun-Young Hwang, Marcial Pastor-Corrales, Perry B. Cregan
Department of Agronomy and Horticulture: Faculty Publications
Background: Next generation sequencing has significantly increased the speed at which single nucleotide polymorphisms (SNPs) can be discovered and subsequently used as molecular markers for research. Unfortunately, for species such as common bean (Phaseolus vulgaris L.) which do not have a whole genome sequence available, the use of next generation sequencing for SNP discovery is much more difficult and costly. To this end we developed a method which couples sequences obtained from the Roche 454-FLX system (454) with the Illumina Genome Analyzer (GA) for high-throughput SNP discovery. Results: Using a multi-tier reduced representation library we discovered a total of …
