نتایج جستجو برای: defense response

تعداد نتایج: 1033280  

2016
Michaela Syrová Michal Němec Petr Veselý Eva Landová Roman Fuchs

Red-backed shrikes (Lanius collurio) behave quite differently towards two common nest predators. While the European jay (Garrulus glandarius) is commonly attacked, in the presence of the Eurasian magpie (Pica pica), shrikes stay fully passive. We tested the hypotheses that this passive response to the magpie is an alternative defense strategy. Nesting shrikes were exposed to the commonly attack...

Journal: :Plant physiology 2007
Deborah A Samac Michelle A Graham

United States Department of Agriculture-Agricultural Research Service Plant Science Research Unit, St. Paul, Minnesota 55108 (D.A.S.); Department of Plant Pathology, University of Minnesota, St. Paul, Minnesota 55108 (D.A.S.); United States Department of Agriculture-Agricultural Research Service Corn Insects and Crop Genetics Research Unit, Ames, Iowa 50011 (M.A.G.); and Department of Agronomy,...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2011
C Dean

Sympathoexcitation and increased blood pressure evoked by central networks integrating defensive behavior are fundamental to the acute stress response. A balance between excitatory glutamatergic and inhibitory GABAergic neurotransmission in the dorsal periaqueductal gray (dPAG) results in a tonic level of activity in the alerting system. Neuromodulators such as endocannabinoids have been shown ...

  Understanding the reaction form and biochemical response of wheat cultivars about the salinity stress can help to better understand the defense mechanisms and identify the indicators and biomarkers of tolerance screening for salinity stress in this strategic plant and other field crop. For this purpose, biochemical traits related to salinity tolerance of wheat cultivars were evaluated as a f...

2013
Janki N. Thakker Samiksha Patel Pinakin C. Dhandhukia

The aim of the present study was to scrutinize the response of banana (Grand Naine variety) plants when interacting with dead or live pathogen, Fusarium oxysporum f.sp. cubense, a causative agent of Panama disease. Response of plants was evaluated in terms of induction of defense-related marker enzyme activity, namely, peroxidase (POX), polyphenol oxidase (PPO), β-1,3 glucanase, chitinase, and ...

Journal: :Gravitational and space biology bulletin : publication of the American Society for Gravitational and Space Biology 2001
J E Leach M Ryba-White Q Sun C J Wu E Hilaire C Gartner O Nedukha E Kordyum M Keck H Leung J A Guikema

Plants grown in spaceflight conditions are more susceptible to colonization by plant pathogens. The underlying causes for this enhanced susceptibility are not known. Possibly the formation of structural barriers and the activation of plant defense response components are impaired in spaceflight conditions. Either condition would result from altered gene expression of the plant. Because of the t...

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