کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9144650 | 1164528 | 2005 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silicon influences cytological and molecular events in compatible and incompatible rice-Magnaporthe grisea interactions
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کلمات کلیدی
HAITotal soluble phenolicsPOXMagnaporthe griseaCHSPALTSPOryza sativaLRRPR-Proteins - PR-پروتئین هاβ-1,3-Glucanase - β-1،3-گلوکونازAVR - آوریلleucine-rich repeat - تکرار غنی از لوسینbase pairs - جفت پایهkilo base pair - جفت پایه کیلوhours after inoculation - ساعت ها بعد از تلقیحFDI - سرمایهگذاری مستقیم خارجیchalcone synthase - سنتاز چالکونsilicon - سیلیسیم Autofluorescence - فلوئورسانسSoluble phenolics - فنول های محلولphenylalanine ammonia-lyase - فنیل آلانین آمونیاک-لیائازLignin - لیگنینResistance - مقاومتHypersensitive response - پاسخ حساسیتPeroxidase - پراکسیدازChit - چیتAvirulence gene - ژن AvirulenceChitinases - کیتینازهاGlu - گلو
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Many monocot plants grown in soils amended with silicon (Si) exhibit increased levels of resistance to fungal diseases. Silicon-mediated resistance to rice blast disease, caused by Magnaporthe grisea, has been hypothesized to be the result of a mechanical barrier produced from Si polymerization in planta. The present study examined the cytological and molecular influences of Si amendment during genetically defined incompatible (resistant) and compatible (susceptible with no major resistance genes) interactions of rice with M. grisea. Differential accumulation of glucanase, peroxidase, and PR-1 transcripts were associated with limited colonization by M. grisea in epidermal cells of Si+ plants of the susceptible cultivar M201. Katy, a resistant cultivar, responded to an avirulent race of M. grisea through the development of a hypersensitive response along with a strong induction of PR-1 and peroxidase transcripts independent of Si amendment. These findings support an active participation, distinct from single-gene-defined resistance, for Si in the defense of rice against M. grisea. While not discounting a physical barrier role for Si, new insights into a potential active role for this ubiquitous element during non-genetically defined rice-blast resistance is suggested.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiological and Molecular Plant Pathology - Volume 66, Issue 4, April 2005, Pages 144-159
Journal: Physiological and Molecular Plant Pathology - Volume 66, Issue 4, April 2005, Pages 144-159
نویسندگان
FabrÃcio Á. Rodrigues, Wayne M. II, Lawrence E. Datnoff, Jeffrey B. Jones, Jeffrey A. Rollins,