نتایج جستجو برای: festuca pratensis

تعداد نتایج: 2541  

ژورنال: :تاکسونومی و بیوسیستماتیک 0
حجت اله سعیدی محمدرضا رحیمی نژاد رنجبر سید ذبیح اله حسینی مصطفی اسدی

مطالعه حاضر، بر پایه بررسی نمونه های جمع آوری شده از نواحی پراکنش گونه های مربوط به زیرجنس schedonorus از ایران و همچنین، مشاهده نمونه های موجود در هرباریوم های وین و برلین، شامل نمونه های تیپ، انجام گرفته است. بر اساس نتایج حاصل از این تحقیق، زیرجنس schedonorus در ایران دارای سه گونه festuca arundinacea، f. gigantean و pratensis f. است. همچنین، مشخص شد که گونه f. arundinacea در ایران دارای دو ...

2016
David Kopecký John Harper Jan Bartoš Dagmara Gasior Jan Vrána Eva Hřibová Beat Boller Nicola M. G. Ardenghi Denisa Šimoníková Jaroslav Doležel Mike W. Humphreys

Citation: Kopecký D, Harper J, Bartoš J, Gasior D, Vrána J, Hřibová E, Boller B, Ardenghi NMG, Šimoníková D, Doležel J and Humphreys MW (2016) An Increasing Need for Productive and Stress Resilient Festulolium Amphiploids: What Can Be Learnt from the Stable Genomic Composition of Festuca pratensis subsp. apennina (De Not.) Hegi? Front. Environ. Sci. 4:66. doi: 10.3389/fenvs.2016.00066 An Increa...

2017
Joanna Majka Tomasz Książczyk Agnieszka Kiełbowicz-Matuk David Kopecký Arkadiusz Kosmala

The Festuca genus is thought to be the most numerous genus of the Poaceae family. One of the most agronomically important forage grasses, Festuca pratensis Huds. is treated as a model plant to study the molecular mechanisms associated with tolerance to winter stresses, including frost. However, the precise mapping of the genes governing stress tolerance in this species is difficult as its karyo...

Journal: :Genetics 2002
J King L A Roberts M J Kearsey H M Thomas R N Jones L Huang I P Armstead W G Morgan I P King

A single chromosome of the grass species Festuca pratensis has been introgressed into Lolium perenne to produce a diploid monosomic substitution line 2n = 2x = 14. The chromatin of F. pratensis and L. perenne can be distinguished by genomic in situ hybridization (GISH), and it is therefore possible to visualize the substituted F. pratensis chromosome in the L. perenne background and to study ch...

Journal: :Science 2007
Ian Armstead Iain Donnison Sylvain Aubry John Harper Stefan Hörtensteiner Caron James Jan Mani Matt Moffet Helen Ougham Luned Roberts Ann Thomas Norman Weeden Howard Thomas Ian King

A key gene involved in plant senescence, mutations of which partially disable chlorophyll catabolism and confer stay-green leaf and cotyledon phenotypes, has been identified in Pisum sativum, Arabidopsis thaliana, and Festuca pratensis by using classical and molecular genetics and comparative genomics. A stay-green locus in F. pratensis is syntenically equivalent to a similar stay-green locus o...

Journal: :Genetics 2002
J King I P Armstead I S Donnison H M Thomas R N Jones M J Kearsey L A Roberts A Thomas W G Morgan I P King

A single chromosome of the grass species Festuca pratensis has been introgressed into Lolium perenne to produce a diploid monosomic substitution line 2n = 2x = 14. In this line recombination occurs throughout the length of the F. pratensis/L. perenne bivalent. The F. pratensis chromosome and recombinants between it and its L. perenne homeologue can be visualized using genomic in situ hybridizat...

Journal: :Applied and environmental microbiology 1986
K Haahtela T Laakso T K Korhonen

Adhesion sites on grass roots for Klebsiella strains carrying type 3 or type 1 fimbriae or both were determined. Adhesion of the strains to the roots of Poa pratensis and Festuca rubra was highly localized; the bacteria adhered strongly to root hairs and with a markedly lower efficiency to the surface of the zone of elongation and to the root cap mucilage. No adhesion to the epidermal cells bet...

2013
Christopher (Kit) J. A. Macleod Mike W. Humphreys W. Richard Whalley Lesley Turner Andrew Binley Chris W. Watts Leif Skøt Adrian Joynes Sarah Hawkins Ian P. King Sally O'Donovan Phil M. Haygarth

We report on the evaluation of a novel grass hybrid that provides efficient forage production and could help mitigate flooding. Perennial ryegrass (Lolium perenne) is the grass species of choice for most farmers, but lacks resilience against extremes of climate. We hybridised L. perenne onto a closely related and more stress-resistant grass species, meadow fescue Festuca pratensis. We demonstra...

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