نتایج جستجو برای: ascomycota

تعداد نتایج: 2554  

Journal: :Fungal Diversity 2017

ژورنال: :دانش بیماری شناسی گیاهی 0
مونس بخشی munes bakhshi of plant pathology, department of plant protection, collage of agriculture, tabriz university, tabriz, iran.بیماری شناسی گیاهی، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه تبریز مهدی ارزنلو mehdi arzanlou of plant pathology, department of plant protection, collage of agriculture, tabriz university, tabriz, iranبیماری شناسی گیاهی، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه تبریز اسدالله بابای اهری asadollah babay-ahari professor of plant pathology, department of plant protection, collage of agriculture, tabriz university, tabriz, iran.بیماری شناسی گیاهی، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه تبریز

بخشی، م.، ارزنلو،م. و بابای اهری، ا. 1391. تولید مثل جنسی و ساختار ژن های تیپ آمیزشی در قارچ های بیمارگر گیاهان. دانش بیماری شناسی گیاهی 2(1): 63- 50.  در سلسله قارچ ها، تولید مثل جنسی با ژن گاه خاصی تحت عنوان ژن گاه تیپ آمیزشی تنظیم می شود. این ژن گاه از نظر ساختاری غیرمعمول است، زیرا 2 فرم متناوب (آلل) با توالی کاملا غیر مشابه را شامل می شود که فاکتورهای نسخه برداری متفاوت را رمزگذاری می کنند...

2015
Monika Osińska-Jaroszuk Anna Jarosz-Wilkołazka Jolanta Jaroszuk-Ściseł Katarzyna Szałapata Artur Nowak Magdalena Jaszek Ewa Ozimek Małgorzata Majewska

Fungal polysaccharides (PSs) are the subject of research in many fields of science and industry. Many properties of PSs have already been confirmed and the list of postulated functions continues to grow. Fungal PSs are classified into different groups according to systematic affinity, structure (linear and branched), sugar composition (homo- and heteropolysaccharides), type of bonds between the...

Journal: :Systematic biology 2009
A Elizabeth Arnold Jolanta Miadlikowska K Lindsay Higgins Snehal D Sarvate Paul Gugger Amanda Way Valérie Hofstetter Frank Kauff François Lutzoni

Fungi associated with photosynthetic organisms are major determinants of terrestrial biomass, nutrient cycling, and ecosystem productivity from the poles to the equator. Whereas most fungi are known because of their fruit bodies (e.g., saprotrophs), symptoms (e.g., pathogens), or emergent properties as symbionts (e.g., lichens), the majority of fungal diversity is thought to occur among species...

Journal: :New Zealand Journal of Botany 2000

ژورنال: :مجله گیاهشناسی ایران 2014
ساره سادات کاظمی سید رضا صفوی

ضمن مطالعه گلسنگ های هرباریوم موسسه تحقیقات جنگلها و مراتع کشور (tari)، سه گونه جدید برای کشور از تیره   teloschistaceae zahlbr. تشخیص داده شد. این گونه ها از استانهای گیلان، البرز و مازندران جمع آوری شده اند و عبارتند از: caloplaca irrubescens (arnold) zahlbr. ،caloplaca monacensis(leder.) lettau و xanthoria calcicola oxner.

2011
Daniel P. Lawrence Scott Kroken Barry M. Pryor A. Elizabeth Arnold

Nonribosomal peptides (NRPs) and polyketides (PKs) are ecologically important secondary metabolites produced by bacteria and fungi using multidomain enzymes called nonribosomal peptide synthetases (NRPSs) and polyketide synthases (PKSs), respectively. Previous phylogenetic analyses of fungal NRPSs and PKSs have suggested that a few of these genes were acquired by fungi via horizontal gene trans...

2010
Roberto Olivares-Hernández Hampus Sunner Jens C. Frisvad Lisbeth Olsson Jens Nielsen Gianni Panagiotou

BACKGROUND Our understanding of how fungi evolved to develop a variety of ecological niches, is limited but of fundamental biological importance. Specifically, the evolution of enzymes affects how well species can adapt to new environmental conditions. Feruloyl esterases (FAEs) are enzymes able to hydrolyze the ester bonds linking ferulic acid to plant cell wall polysaccharides. The diversity o...

Journal: :Journal of evolutionary biology 2008
M Le Gac T Giraud

Generally, stronger reproductive isolation is expected between sympatric than between allopatric sibling species. Such reproductive character displacement should predominantly affect premating reproductive isolation and can be due to several mechanisms, including population extinction, fusion of insufficiently isolated incipient species and reinforcement of reproductive isolation in response to...

Journal: :Mycologia 2012
Joseph W Spatafora C Alisha Owensby Greg W Douhan Eric W A Boehm Conrad L Schoch

Cenococcum is a genus of ectomycorrhizal Ascomycota that has a broad host range and geographic distribution. It is not known to produce either meiotic or mitotic spores and is known to exist only in the form of hyphae, sclerotia and host-colonized ectomycorrhizal root tips. Due to its lack of sexual and asexual spores and reproductive structures, it has proven difficult to incorporate into trad...

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