نتایج جستجو برای: antagonistic effects

تعداد نتایج: 1553165  

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
لاله نراقی موسسه تحقیقات گیاه پزشکی کشور، تهران عبدالرضا احمدی صمد سرکاری اصغر حیدری نصراله مالکی

considering the deleterious effects of chemical pesticides used in agriculture including cotton cultivation, the search about integrated control strategies for important cotton diseases, verticillium wilt and rhizoctonia seedling damping-off is clearly obvious. in this present study, the researcher investigated the effectiveness of the integration of two strategies, biological control (using an...

Journal: :Polish journal of microbiology 2017
Pei-Hua Chen Jui-Yu Chou

Microbes have evolved ways of interference competition to gain advantage over their ecological competitors. The use of secreted antagonistic compounds by yeast cells is one of the prominent examples. Although this killer behavior has been thoroughly studied in laboratory yeast strains, our knowledge of the antagonistic specificity of killer effects in nature remains limited. In this study, yeas...

Journal: :Mechanisms of ageing and development 2005
Armand M Leroi Andrzej Bartke Giovanna De Benedictis Claudio Franceschi Anton Gartner Efstathios S Gonos Martin E Fedei Toomas Kivisild Sylvia Lee Nesrin Kartaf-Ozer Michael Schumacher Ewa Sikora Eline Slagboom Mark Tatar Anatoli I Yashin Jan Vijg Bas Zwaan

Classical evolutionary theory predicts the existence of genes with antagonistic effects on longevity and various components of early-life fitness. Quantitative genetic studies have provided convincing evidence that such genes exist. However, antagonistic pleiotropic effects have rarely been attributed to individual loci. We examine several classes of longevity-assurance genes: those involved in...

Journal: :Proceedings. Biological sciences 2013
Manus M Patten Francisco Ubeda David Haig

Populations with two sexes are vulnerable to a pair of genetic conflicts: sexual antagonism that can arise when alleles have opposing fitness effects on females and males; and parental antagonism that arises when alleles have opposing fitness effects when maternally and paternally inherited. This paper extends previous theoretical work that found stable linkage disequilibrium (LD) between sexua...

2012
Ling-Ju Chen Hsiu-Ting Tsai Wei-Jen Chen Chu-Yang Hsieh Pi-Chieh Wang Chung-Shih Chen Lina Wang Chi-Chiang Yang

As lactobacilli possess an antagonistic growth property, these bacteria may be beneficial as bioprotective agents for infection control. However, whether the antagonistic growth effects are attributed to the lactobacilli themselves or their fermentative broth remains unclear. The antagonistic growth effects of Lactobacillus salivarius and Lactobacillus fermentum as well as their fermentative br...

Journal: :The American Journal of the Medical Sciences 1865

A. Mohamadi H. Askari S. Shahbazi, T. Naseripour,

Effects of induced mutation via gamma irradiated with 250 Gy dose (in Nuclear Agriculture Research School- Nuclear Science and Technology Research Institute) on Trichoderma harzianum conidiaon chitinase activity by STS molecular marker have been evaluated in this study. Among 20 irradiated mutants which selected via improved antagonistic capability against Rhizoctonia sola...

2016
Xiao-Qiu Li Jia-Tao Liu Lu-Lu Fan Yu Liu Liang Cheng Fang Wang Han-Qing Yu Jian Gao Wei Wei Hua Wang Guo-Ping Sun

Several clinical trials indicate that concurrent administration of tyrosine kinase inhibitors (TKIs, such as gefitinib or erlotinib) with chemotherapy agents fails to improve overall survival in advanced non-small cell lung cancer (NSCLC) patients. However, the precise mechanisms underlying the antagonistic effects remain unclear. In the present study, we investigated the role of exosomes in th...

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