نتایج جستجو برای: fusarium oxysporum

تعداد نتایج: 14559  

Journal: :Applied and environmental microbiology 2001
F I García-Maceira A Di Pietro M D Huertas-González M C Ruiz-Roldán M I Roncero

The tomato vascular wilt pathogen Fusarium oxysporum f. sp. lycopersici produces an array of pectinolytic enzymes that may contribute to penetration and colonization of the host plant. Here we report the isolation of pg5, encoding a novel extracellular endopolygalacturonase (endoPG) that is highly conserved among different formae speciales of F. oxysporum. The putative mature pg5 product has a ...

2017
Wensheng Li Ping Xiong Wenxu Zheng Xinwei Zhu Zhigang She Weijia Ding Chunyuan Li

Two new coumarin derivatives, 4,4'-dimethoxy-5,5'-dimethyl-7,7'-oxydicoumarin (1), 7-(γ,γ-dimethylallyloxy)-5-methoxy-4-methylcoumarin (2), a new chromone derivative, (S)-5-hydroxy-2,6-dimethyl-4H-furo[3,4-g]benzopyran-4,8(6H)-dione (5), and a new sterone derivative, 24-hydroxylergosta-4,6,8(14),22-tetraen-3-one (6), along with two known bicoumarins, kotanin (3) and orlandin (4), were isolated ...

Journal: :Annual review of phytopathology 1997
T R Gordon R D Martyn

Fusarium oxysporum is an anamorphic species that includes both pathogenic and nonpathogenic strains. Plant pathogenic forms cause a wilt disease and are grouped into formae speciales based on their host range; some are further subdivided into pathogenic races. Many formae speciales are comprised of multiple clonal lineages and, in some cases, a pathogenic race is associated with more than one c...

2013
S. K. DWIVEDI

The effectiveness of aqueous extract of seven locally available medicinal plants i.e. Trachyspermum ammi (seeds), Zingiber officinale (rhizome), Tinospora cordifolia (leaves), Cymbopogon citratus (leaves), Moringa oleifera (bark) were evaluated against the plant pathogenic fungus i.e. Fusarium oxysporum f. sp. lini (causing wilt in linseed). The plant extracts were screened for their antagonist...

Journal: :Molecules 2014
Xue-Ru Liu Hua Wu Ze-Yu He Zhi-Qing Ma Jun-Tao Feng Xing Zhang

In order to discover new compounds with good fungicidal activities, 32 pyrazole derivatives were designed and synthesized. The structures of the target compounds were confirmed by 1H-NMR, 13C-NMR, and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS), and their fungicidal activities against Botrytis cinerea, Rhizoctonia solani Kuhn, Valsa mali Miyabe et Yamada, Thanatephorus...

2013
S. MANEVA T. VATCHEV

S. MANEVA, S., T. VATCHEV and E. MITEVA, 2013. Effect of lead excess in soil on the accumulation of P, K and Na in infected by Fusarium oxysporum f. sp. radicis-lycopersici in tomato (Lycopersicon esculentum Mill.) plants. Bulg. J. Agric. Sci., 19: 972-980 Pot experiments were conducted in greenhouse of IPAZR, “N. Poushkarov”, Sofia, to study the effects of excess lead (Pb) in soils on the upta...

Journal: :Journal of nematology 2000
S Y Chen D W Dickson D J Mitchell

Filtrates from nematode-parasitic fungi have been reported to be toxic to plant-parasitic nematodes. Our objective was to determine the effects of fungal filtrates on second-stage juveniles and eggs of Heterodera glycines. Eleven fungal species that were isolated from cysts extracted from a soybean field in Florida were tested on J2, and five species were tested on eggs in vitro. Each fungal sp...

Journal: :journal of agricultural science and technology 2013
p. prashar n. kapoor s. sachdeva

the present investigation was carried out to isolate and characterize antagonistic bacteria against wilt causing fungal pathogen i.e. fusarium oxysporum, from the rhizosphere of tomato. fifty-six bacterial strains were isolated from the rhizosphere soil samples of healthy tomato fields, collected from different locations of faridabad district, haryana, india. out of these, ten isolates were fou...

Journal: :حفاظت گیاهان 0
ناهید حیدرزاده حمید روحانی ماهرخ فلاحتی رستگار عصمت مهدیخانی مقدم

abstract this study was carried out of identify the tomatinase extracellular enzyme in fusarium oxysporum f.sp. lycopersici race1 the casual agent of wilting in tomato. 20 isolates of fusarium oxysporum were recovered from infected roots,crown and stems of tomato plants collected from fields in major tomato producing areas in northern and razavi khorasan province during 2009-2010 . pathogenicit...

ژورنال: :دانش گیاهپزشکی ایران 2013
سید علی اصغر فتحی سعیده شهریاری نژاد

during the growing seasons of 2009 and 2010, same tomato fields throughout marvdasht  were visited  and  96 isolates of fusarium spp. were collected from root, crown and stem of diseased tomato plants. isolates were identified as based on morphological characteristics. they were divided into four species namely: fusarium solani, f. pseudoanthophilum, f. oxysporum and f. equiseti. these species,...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید