نتایج جستجو برای: ژن apx
تعداد نتایج: 17534 فیلتر نتایج به سال:
Modeling studies have predicted that coffee crop will be endangered by future global warming, but recent reports highlighted that high [CO2] can mitigate heat impacts on coffee. This work aimed at identifying heat protective mechanisms promoted by CO2 in Coffea arabica (cv. Icatu and IPR108) and Coffea canephora cv. Conilon CL153. Plants were grown at 25/20°C (day/night), under 380 or 700 μL CO...
.Salt stress is one of the major abiotic stresses especially in arid and semi-arid regions. This investigation was conducted to evaluate the effects of the salt stress on Ascorbate Peroxidase (APX) and Superoxide Dismutase (SOD) activities in safflower genotypes based in on a factorial experiment as a Completely Randomized Design (CRD) with three replications. The experimental factors were six ...
The parasitic protozoa Leishmania major produces a peroxidase (L. major peroxidase; LmP) that exhibits activities characteristic of both yeast cytochrome c peroxidase (CCP) and plant cytosolic ascorbate peroxidase (APX). One common feature is a key Trp residue, Trp(208) in LmP and Trp(191) in CCP, that is situated adjacent to the proximal His heme ligand in CCP, APX, and LmP. In CCP, Trp(191) f...
It is proved that computing the maximum diameter ratio also known as the local density of a graph is APX complete The related problem of nding a maximum subgraph of a xed diameter d is proved to be even harder to approximate
Minimum Bisection denotes the NP-hard problem to partition the vertex set of a graph into two sets of equal sizes while minimizing the number of edges between these two sets. We consider this problem in bounded degree graphs with a given tree decomposition (T,X ) and prove an upper bound for their minimum bisection width in terms of the structure and width of (T,X ). When (T,X ) is provided as ...
This study investigated oxidative stress and the antioxidant response to boron (B) of chickpea cultivars differing in their tolerance to drought. Three-week-old chickpea seedlings were subjected to 0.05 (control), 1.6 or 6.4 mm B in the form of boric acid (H(3)BO(3)) for 7 days. At the end of the treatment period, shoot length, dry weight, chlorophyll fluorescence, B concentration, malondialdeh...
We study the problem of allocating a set of indivisible items to agents with additive utilities to maximize the Nash social welfare. Cole and Gkatzelis [3] recently proved that this problem admits a constant factor approximation. We complement their result by showing that this problem is APX-hard.
القای مقاومت در دو رقم مقاوم و حساس (به ترتیب، ناز و اختر) لوبیا نسبت به آلودگی کنه تارتن دونقطه‌ای، Tetranuychus urticae Koch (Acari; Tetranychidae)، مورد مطالعه قرار گرفت. در این مطالعه صفات محتوای فنل کل، مالون دی‌آلدئید، ظرفیت آنتی اکسیدانی، و فعالیت آنزیم‌های دفاعی گیاه )گایاکول پراکسیداز (GPX) و آسکوربات-پراکسیداز((APX) در گیاه غیر آلوده (شاهد)، و آلوده (1، 3 و 5 روز پس از آلودگی) اندازه...
The use of soil additives such as selenium can positively influence the antioxidative system plants, making them more tolerant to abiotic stresses. aim this work was evaluate concentration sodium selenite or selenate applied substrate that causes improve in plant growth and enzyme activities sunflower plants. treatments were divided in: control (absence selenium); 0.2 mg L-1 selenate; 0.4 0.8 s...
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