نتایج جستجو برای: host colonization and biological control against plant pathogens

تعداد نتایج: 17183781  

Journal: :Archives of agriculture and environmental science 2021

The excessive use of chemical fertilizers and pesticides have caused several negative impacts on the environment human health. They degrade soil fertility, build up resistance pathogens, inhibit microbial activities also enhance greenhouse gas emission. It is impossible inappropriate to control plant pathogens by using alone. Emphasize should be given towards organic attain sustainability in ag...

Journal: :The Journal of nutrition 2007
Sofia Kolida Glenn R Gibson

The human gut microbiota plays a significant role in human health through its ability to digest food ingredients and manufacture metabolites. This can be positive or negative for host welfare. Moreover, the microflora plays an active role in host defense whereby colonization resistance affords protection against pathogens. Prebiotics are nondigestible food ingredients that target beneficial com...

2014
Valeria Severino Annarita Farina Frank Fleischmann Ronaldo J. D. Dalio Antimo Di Maro Monica Scognamiglio Antonio Fiorentino Augusto Parente Wolfgang Osswald Angela Chambery

The understanding of molecular mechanisms underlying host-pathogen interactions in plant diseases is of crucial importance to gain insights on different virulence strategies of pathogens and unravel their role in plant immunity. Among plant pathogens, Phytophthora species are eliciting a growing interest for their considerable economical and environmental impact. Plant infection by Phytophthora...

2014
Allyson M. MacLean Zigmunds Orlovskis Krissana Kowitwanich Anna M. Zdziarska Gerco C. Angenent Richard G. H. Immink Saskia A. Hogenhout

Pathogens that rely upon multiple hosts to complete their life cycles often modify behavior and development of these hosts to coerce them into improving pathogen fitness. However, few studies describe mechanisms underlying host coercion. In this study, we elucidate the mechanism by which an insect-transmitted pathogen of plants alters floral development to convert flowers into vegetative tissue...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده علوم کشاورزی 1391

abstract: the potato tuberworm, phthorimaea operculella (zeller), is an important insect pest of potato (solanum tuberosum l.) in the storage and field in most parts of the world especially in tropical and subtropical regions due to its close relationship with the host, high reproductive potential and high economic losses. information on host preference, life table parameters and digestive en...

2013
Ho Pan Sham Emily Yi Shan Yu Muhammet F. Gulen Ganive Bhinder Martin Stahl Justin M. Chan Lara Brewster Vijay Morampudi Deanna L. Gibson Michael R. Hughes Kelly M. McNagny Xiaoxia Li Bruce A. Vallance

Enteric bacterial pathogens such as enterohemorrhagic E. coli (EHEC) and Salmonella Typhimurium target the intestinal epithelial cells (IEC) lining the mammalian gastrointestinal tract. Despite expressing innate Toll-like receptors (TLRs), IEC are innately hypo-responsive to most bacterial products. This is thought to prevent maladaptive inflammatory responses against commensal bacteria, but it...

Journal: :Proceedings. Biological sciences 2013
Andrea E A Stephens Diane S Srivastava Judith H Myers

While plants are invariably attacked by numerous insects and pathogens, the consequences of multiple enemies for plant performance are poorly understood. In particular, a predictive framework is lacking for when to expect enemies to have independent versus non-independent effects on their host plant. This is problematic for weed biological control programmes where multiple enemies are frequentl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده کشاورزی 1391

چکیده مورچه‏ها با حمایت از شپشک‏ها در مقابل دشمنان طبیعی، می‏توانند برنامه‏های کنترل بیولوژیک آن‏ها را مختل ‏نمایند. طی سال‏های 1389 و 1390 با نمونه‏برداری از باغات مرکبات شهرستان‏های ساری و بهشهر، فون و فراوانی نسبی مورچه‏هایِ همراه با شپشک‏ها مورد مطالعه قرار گرفت. همچنین، تاثیر تراکم‏های مختلف کاست کارگر گونه‏ی santschi lasius turcicus بر میزان تغذیه و فراسنجه‏های واکنش تابعی حشرات ماده و لا...

2017
Lynn Chiu Thomas Bazin Marie-Elise Truchetet Thierry Schaeverbeke Laurence Delhaes Thomas Pradeu

Resident microbiota do not just shape host immunity, they can also contribute to host protection against pathogens and infectious diseases. Previous reviews of the protective roles of the microbiota have focused exclusively on colonization resistance localized within a microenvironment. This review shows that the protection against pathogens also involves the mitigation of pathogenic impact wit...

2014
Kamonporn Panngom Sang Hark Lee Dae Hoon Park Geon Bo Sim Yong Hee Kim Han Sup Uhm Gyungsoon Park Eun Ha Choi

Reactive oxygen and nitrogen species can have either harmful or beneficial effects on biological systems depending on the dose administered and the species of organism exposed, suggesting that application of reactive species can possibly produce contradictory effects in disease control, pathogen inactivation and activation of host resistance. A novel technology known as atmospheric-pressure non...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید