Characterisation of sunflower root colonisation by Phoma macdonaldii
نویسندگان
چکیده
منابع مشابه
Characterisation of the early events in atypical tomato root colonisation by a biocontrol agent, Pythium oligandrum.
The specific oomycete-plant relationship established between a biological agent, Pythium oligandrum, and tomato (Lycopersicon esculentum Mill.) plants was examined over the first 48 h after inoculation of tomato roots with the antagonist. One of the most significant effects was the quick colonisation of cortical and vascular root areas by P. oligandrum (until 9 h post-inoculation); it was simil...
متن کاملstudy of interactions between sunflower genotypes and black stem (phoma macdonaldii) isolates using gge biplot approach
black stem is one of the most important fungal diseases of sunflower which is caused by phoma macdonaldii. this research was conducted to clarify the interactions between a few breeder lines and wild-type accessions of sunflower with seven isolates of phoma macdonaldii, the causal agent, under controlled conditions. the experiment was carried out in randomized complete block design with three r...
متن کاملارزیابی مقاومت چند رقم آفتاب گردان به بیماری ساق سیاه (Phoma macdonaldii)
بیماری ساق سیاه که عامل آن قارچ (Phoma macdonaldii) می باشد یکی از بیماری های مهم آفتاب گردان به شمار می آید. تولید ارقام مقاوم از روش های مفید برای کنترل این بیماری می باشد. بدین منظور حساسیت ده رقم آفتاب گردان نسبت به این بیماری در اطاق رشد در شرایط کنترل شده در قالب طرح بلوک های کامل تصادفی در سه تکرار که هر تکرار شامل ده گیاهچه بود مورد بررسی قرار گرفت. گیاهچه های 12 روزه به وسیله سوسپانس...
متن کاملRoot cap influences root colonisation by Pseudomonas fluorescens SBW25 on maize.
We investigated the influence of root border cells on the colonisation of seedling Zea mays roots by Pseudomonas fluorescens SBW25 in sandy loam soil packed at two dry bulk densities. Numbers of colony forming units (CFU) were counted on sequential sections of root for intact and decapped inoculated roots grown in loose (1.0 mg m(-3)) and compacted (1.3 mg m(-3)) soil. After two days of root gr...
متن کاملResolving the Phoma enigma.
The Didymellaceae was established in 2009 to accommodate Ascochyta, Didymella and Phoma, as well as several related phoma-like genera. The family contains numerous plant pathogenic, saprobic and endophytic species associated with a wide range of hosts. Ascochyta and Phoma are morphologically difficult to distinguish, and species from both genera have in the past been linked to Didymella sexual ...
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ژورنال
عنوان ژورنال: European Journal of Plant Pathology
سال: 2008
ISSN: 0929-1873,1573-8469
DOI: 10.1007/s10658-008-9396-9