نتایج جستجو برای: trichoderma parceramosum
تعداد نتایج: 6095 فیلتر نتایج به سال:
Trichoderma sp. is one of the endophytic fungi, which is produce toxic culturefiltrate against plant pathogen e.g plant parasitic nematode. Experiments were conducted to in vitro bioassays of the antagonistic effects of culturefiltrate produced by endophytic fungi Trichoderma sp. in different medium on mobility and mortality of Meloidogyne-J2. Three different medium of culturfiltrate were inves...
Fungi belonging to Fusarium genus can infect crops in the field and cause subsequent mycotoxin contamination, which leads to yield and quality losses of agricultural commodities. The mycotoxin zearalenone (ZEN) produced by several Fusarium species (such as F. graminearum and F. culmorum) is a commonly-detected contaminant in foodstuffs, posing a tremendous risk to food safety. Thus, different s...
Towards assessing the genetic diversity and occurrence of Trichoderma species from the Indian region of Indo-Burma Biodiversity hotspot, a total of 193 Trichoderma strains were isolated from cultivated soils of nine different districts of Manipur comprising 4 different agroclimatic zones. The isolates were grouped based on the morphological characteristics. ITS-RFLP of the rDNA region using thr...
The potential of the biocontrol agent Trichoderma harzianum T-203 to trigger plant defense responses was investigated by inoculating roots of cucumber seedlings with Trichoderma in an aseptic, hydroponic system. Trichoderma-treated plants were more developed than nontreated plants throughout the experiment. Electron microscopy of ultrathin sections from Trichoderma-treated roots revealed penetr...
به منظور شناسایی فلور قارچی ریشه و طوقه گندم در استان زنجان، در طی سال زارعی 90-1389 از 58 مزرعه گندم کشت دیم و آبی استان زنجان نمونه برداری به عمل آمد که ارقام سرداری، آذر2، امید و الوند از جمله ارقام رایج کشت شده در این مزارع بودند. جهت جداسازی قارچ های آلوده کننده غیر سطحی (داخلی) قطعاتی از ریشه و طوقه ضدعفونی شده بوسیله هیپوکلریت سدیم 1-5/0 درصد روی محیط کشت های آگار دار قرار داده شدند و بر...
Trichoderma species are commercially applied as biocontrol agents against numerous plant pathogenic fungi due to their production of antifungal metabolites, competition for nutrients and space, and mycoparasitism. However, currently the identification of Trichoderma species from throughout the world based on micro-morphological descriptions is tedious and prone to error. The correct identificat...
Trichoderma spp. cause large crop losses of the cultivated shiitake mushroom, Lentinula edodes. We bred several shiitake strains that are resistant to Trichoderma spp. using di-mon mating to establish a useful method for controlling the greenmold disease. We examined the competitive ability of L. edodes against Trichoderma spp. using a dual culture system to select resistant strains. By screeni...
Brown spot caused by Bipolaris oryzae is an important rice disease in Southern coast of Caspian Sea, the major rice growing region in Iran. A total of 45 Trichoderma isolates were obtained from rice paddy fields in Golestan and Mazandaran provinces which belonged to Trichoderma harzianum, T. virens and T. atroviride species. Initially, they were screened against B. oryzae by antagonism tests in...
The objectives of this study were to investigate whether seed biopriming through drought tolerant isolates of Trichoderma harzianum induces drought tolerance in wheat. Physiological and biochemical parameters were also monitored under greenhouse conditions to explore the mechanism underlying plant water stress resilience in response to Trichoderma inoculation.The impact of bioprospecting Tricho...
Five strains of Trichoderma with known biocontrol activities were assessed for their effect upon pea growth and their antagonistic activity against large Pythium ultimum inocula. The effect of Trichoderma inocula upon the indigenous soil microflora and soil enzyme activities in the presence and absence of Pythium is assessed. In the absence of Pythium, Trichoderma strain N47 significantly incre...
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