نتایج جستجو برای: defence
تعداد نتایج: 16827 فیلتر نتایج به سال:
Animals and plants defend themselves against a variable community of biological enemies. We argue that the effectiveness of allocation to defence (the success of defence per unit allocation) may be expected to decrease as the diversity of attack types increases, and asked how the optimal allocation to defence covaries with the effectiveness of defence. Variation in effectiveness links optimal d...
in this work, the effects of silicon (si) supplementation were studied in pistachio (pistacia veral. cv ahmadaghaii) plants exposed to high salinity stress. plants were grown in pots undercontrol and salt (ec=15 ds m-1) conditions without or with si treatment (0.35 g na2sio3 kg-1soil) under field conditions. salt stress reduced the plants’ growth significantly in both –si and+si plants; however...
the entomopathogenic-fungus-life cycle is associated with the synthesis and secretion of a number of toxic metabolites, including extracellular enzymes and the low-molecular weight compound (toxin). the potential for a successful pathogen relies on the ability to overcome the various host-defence systems. interaction between the fungus, tolypocla-dium (deuteromycetes), its secondary metabolite,...
This article examines the case law on the loss of control defence and considers whether the interpretation of the defence has been too conservative so that the defence is barely available as a defence to murder.
Multichromophoric molecules of conjugated N-substituted oxoporphyrinogens have been assembled on the Au(111) surface using solution and sublimation techniques. The operation of the oxoporphyrinogen moiety as a surface anchoring unit in the formation of molecular monolayers has been demonstrated.
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