نتایج جستجو برای: improvement biocontrol ability

تعداد نتایج: 717103  

ژورنال: ایمنی زیستی 2019

Fluorescent pseudomonads are an effective source of biological control that have high adaptive power and able to produce a wonderful source of secondary metabolites. Antibiotics such as phenazines, diacetylphloroglucinol, and hydrogen cyanide are produced by certain taxonomic groups of the genus Pseudomonas and appear to be ancestral. These compounds often play a physiological role in the produ...

2017
Olfa Frikha-Gargouri Dorra Ben Abdallah Ilhem Bhar Slim Tounsi

This study aimed to improve the screening method for the selection of Bacillus biocontrol agents against crown gall disease. The relationship between the strain biocontrol ability and their in vitro studied traits was investigated to identify the most important factors to be considered for the selection of effective biocontrol agents. In fact, previous selection procedure relying only on in vit...

Journal: :Phytopathology 1997
K P Smith J Handelsman R M Goodman

ABSTRACT Breeding plants to improve the effectiveness of biocontrol agents is a promising approach to enhance disease suppression by microorganisms. Differences in biocontrol efficacy among cultivars suggest there is genetic variation for this trait within crop germplasm. The ability to quantify host differences in support of biological control is influenced by variation in host response to the...

Journal: :international journal of endocrinology and metabolism 0
mahnaz barkhordari department of mathematics, bandar abbas branch, islamic azad university, bandar abbas, ir iran mojgan padyab centre for population studies, ageing and living conditions, umea university, umea, sweden farzad hadaegh prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran fereidoun azizi endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran mohammadreza bozorgmanesh prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran; prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, p. o. box 19395-4763, tehran, ir iran. tel: +98-2122409301-5, fax: +98-2122402463

results the command is addpred for logistic regression models. conclusions the stata package provided herein can encourage the use of novel methods in examining predictive capacity of ever-emerging plethora of novel biomarkers. materials and methods we have written a stata command that is intended to help researchers obtain cut point-free and cut point-based net reclassification improvement ind...

Journal: :international journal of endocrinology and metabolism 0
mahnaz barkhordari department of mathematics, bandar abbas branch, islamic azad university, bandar abbas, ir iran mojgan padyab centre for population studies, ageing and living conditions, umea university, sweden mahsa sardarinia prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran farzad hadaegh prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran fereidoun azizi endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran mohammadreza bozorgmanesh prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran; prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2122409301, fax: +98-2122402463

conclusions herein we have described the stata package “adpredsurv” for calculation of the nam-d’agostino x2 goodness of fit test as well as cut point-free and cut point-based nri, relative and absolute idi, and survival-based regression analyses. we hope this work encourages the use of novel methods in examining predictive capacity of the emerging plethora of novel biomarkers. background a fun...

2017
Jodi Woan-Fei Law Hooi-Leng Ser Tahir M. Khan Lay-Hong Chuah Priyia Pusparajah Kok-Gan Chan Bey-Hing Goh Learn-Han Lee

Rice is a staple food source for more than three billion people worldwide. However, rice is vulnerable to diseases, the most destructive among them being rice blast, which is caused by the fungus Magnaporthe oryzae (anamorph Pyricularia oryzae). This fungus attacks rice plants at all stages of development, causing annual losses of approximately 10-30% in various rice producing regions. Syntheti...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
سعیده رنجبر چهار برج دانشجوی کارشناسی ارشد بیماری شناسی گیاهی، دانشکدۀ کشاورزی، دانشگاه شهید مدنی آذربایجان اکبر شیرزاد دانشیار گروه گیاهپزشکی، دانشکدۀ کشاورزی، دانشگاه شهید مدنی آذربایجان مهدی ارزنلو دانشیار گروه گیاهپزشکی، دانشکدۀ کشاورزی، دانشگاه تبریز

bunch rot disease is one of the most important diseases of grapes caused by the storage rot fungi such as aspergillus tubingensis and penicillium crustosum. in this study, some biocontrol mechanisms of two pichia membranaefaciens strains such as competitive potential, the siderophore and toxin production capacity, the interactions between yeast cells and fungal hyphae and also the ability of ly...

2014
Kenneth C. Ehrlich

Aspergillus flavus is a diverse assemblage of strains that include aflatoxin-producing and non-toxigenic strains with cosmopolitan distribution. The most promising strategy currently being used to reduce preharvest contamination of crops with aflatoxin is to introduce non-aflatoxin (biocontrol) A. flavus into the crop environment. Whether or not introduction of biocontrol strains into agricultu...

2017
Zhong Wei Jianfeng Huang Tianjie Yang Alexandre Jousset Yangchun Xu Qirong Shen Ville‐Petri Friman

Microbe-based biocontrol applications hold the potential to become an efficient way to control plant pathogen disease outbreaks in the future. However, their efficiency is still very variable, which could be due to their sensitivity to the abiotic environmental conditions.Here, we assessed how environmental temperature variation correlates with ability of Ralstonia pickettii, an endophytic bact...

Journal: :حفاظت گیاهان 0
زهرا ابراهیمی کاظم آباد حمید روحانی فاطمه جمالی عصمت مهدیخانی مقدم

fusarium wilt of chickpea, caused by f. oxysporum f. sp. ciceris, is one of the most important diseases of this plant in iran. in order to control this disease, fluorescent pseudomonads were isolated from the rhizosphere of chickpea plants in khorasan province by using king,s b medium (kb). antifungal activity of 80 bacterial strains against f. oxysporum f. sp. ciceris was evaluated on kb and p...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید