24 Result(s)
within
N A Khan
Life Sciences
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Article
Morpho-cultural, physiological and molecular characterisation of Sphaceloma ampelinum causing anthracnose of grapes in temperate region of India and its management
Anthracnose of grapes inflicted by Sphaceloma ampelinum (de Bary) is widespread and the most destructive disease of grapes (Vitis vinifera L.) worldwide. The pathogen produced irregular, whitish glabrous raised c...
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Chapter
Diseases of Stone Fruit Crops
Stone fruits (peach, plum, cherry, apricot and nectarines) are widely cultivated throughout the temperate regions of the world. There are various production impediments in stone fruit cultivation of which dise...
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Article
Photosynthetic and growth responses of two mustard cultivars differing in phytocystatin activity under cadmium stress
Cadmium inhibits photosynthetic capacity of plants by disturbing protein conformations, whereas phytocystatins prevent degradation of target proteins and are involved in abiotic stress tolerance. Two mustard (Bra...
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Analyzing the significance of defoliation in growth, photosynthetic compensation and source-sink relations
Leaf canopy plays a determining role influencing source-sink relations as any change in source activity (photosynthesis) affects sink metabolism. Defoliation (removal of leaves) influences growth and photosynt...
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Inhibition of midgut protease of yellow stem borer (Scirpophaga incertulas) by cysteine protease-like inhibitor from mature jackfruit (Artocarpus heterophyllus) seed
A novel protease inhibitor was isolated and purified from the mature seeds of jackfruit (Artocarpus heterophyllus) by precipitation with ammonium sulphate, followed by DEAE-cellulose and gel filtration (Sephadex ...
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Protection of growth and photosynthesis of Brassica juncea genotype with dual type sulfur transport system against sulfur deprivation by coordinate changes in the activities of sulfur metabolism enzymes and cysteine and glutathione production
Mustard (Brassica juncea L. Czern and Coss.) cvs. Pusa Jai Kisan (with low-affinity S transporter (LAT) system) and Pusa Bold (with dual, low- and high-affinity transporters (LAT + HAT) system) were supplied with...
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Article
Cadmium causes oxidative stress in mung bean by affecting the antioxidant enzyme system and ascorbate-glutathione cycle metabolism
Ascorbate (AsA)-glutathione (GSH) cycle metabolism is an essential mechanism for the resistance of plants under stress conditions. In a greenhouse pot experiment, the influence of cadmium (Cd) (25, 50, and 100...
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Article
Increased activity of ATP-sulfurylase and increased contents of cysteine and glutathione reduce high cadmium-induced oxidative stress in mustard cultivar with high photosynthetic potential
Cadmium is known to reduce photosynthesis and overall growth of plants. Plants adopt several mechanisms of Cd detoxification, such as accumulation of sulfur-rich compounds, like glutathione (GSH) and its precu...
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Article
Effects of cadmium stress upon activities of antioxidative enzymes, photosynthetic rate, and production of phytochelatins in leaves and chloroplasts of wheat cultivars differing in yield potential
We tested the mode of action of Cd on photosynthesis and activities of ATP-sulfurylase (ATP-S), catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), and on conten...
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Article
ATP-sulfurylase activity, photosynthesis, and shoot dry mass of mustard (Brassica juncea L.) cultivars differing in sulfur accumulation capacity
Sulfur (S) is an essential nutrient element required in a large quantity by mustard. S regulates photosynthesis and plant growth through improving nitrogen (N) acquisition. Mustard cultivars Alankar, Varuna, P...
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Article
The influence of gibberellic acid and sulfur fertilization rate on growth and S-use efficiency of mustard (Brassica juncea)
Earlier research has shown that exogenous gibberellic acid (GA3) application increases shoot growth, photosynthesis and soil nitrogen (N) utilisation in mustard (Brassica juncea L. Czern & Coss.). Mustard has a h...
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Article
Activity of 1-Aminocyclopropane Carboxylic Acid Synthase in Two Mustard (Brassica juncea L.) Cultivars Differing in Photosynthetic Capacity
The pattern of activity of 1-aminocyclopropane carboxylic acid synthase (ACS) was similar to photosynthetic and growth traits observed at 30, 45, and 60 d after sowing in mustard (Brassica juncea L.) cultivars Va...
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Article
NaCl-Inhibited Chlorophyll Synthesis and Associated Changes in Ethylene Evolution and Antioxidative Enzyme Activities in Wheat
Effect of NaCl was studied on chlorophyll (Chl) synthesis and its intermediates (protoporphyrin IX, Mg-protoporphyrin IX, and protochlorophyllide), dry mass, ethylene evolution, and activities of superoxide di...
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Article
Activities of Carbonic Anhydrase and Ribulose-1,5-Bisphosphate Carboxylase, and Dry Mass Accumulation in Brassica juncea following Defoliation
The effect of 30 % defoliation of shaded leaves in lower layers of plant was studied on activities of carbonic anhydrase (CA) and ribulose-1,5-bisphosphate carboxylase (RuBPC), leaf dry mass per unit leaf area...
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Article
Effects of gibberellic acid spray on nitrogen yield efficiency of mustard grown with different nitrogen levels
Mustard is cultivated throughout the world for oil in its seeds. Itrequires high nitrogen input for improved productivity but the nitrogen appliedto the soil is not fully utilised by the crops due to various c...
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Article
Effect of gibberellic acid and nitrogen on carbonic anhydrase activity and mustard biomass
In mustard(Brassica juncea L.) addition of 20 mM nitrogen (in the form of NaNO3) inhibited after 50 d the activities of carbonic anhydrase and nitrate reductase and net photosynthetic rate. However, when nitrogen...
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Article
Effect of gibberellic acid on carbonic anhydrase, photosynthesis, growth and yield of mustard
The plants of mustard (Brassica juncea L.) were treated with 0, 25 and 50 ΜM gibberellic acid (GA3) at three fully developed leaf stage (30 d after sowing). Effect of GA3 on carbonic anhydrase activity, photosynt...
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Article
Effect of Cannabis hemp (hashish) on normal and rats subjected to psychological stress
The effect of hashish plus cigarette smoke on normal rats and rats undergoing psychological trauma was studied.
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Article
Genetic control of invertase formation in Saccharomyces cerevisiae
Invertase formation in the yeast Saccharomyces cerevisiae is subject to repression by hexoses in the growth medium. Mutagen-induced (ethyl methanesulfonate or N-methyl-N'-nitro-nitrosoguanidine) invertase hyperpr...
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Identification of new genes involved in disaccharide fermentation in yeast
Maltose non-fermenting mutants were obtained from strains carrying a MAL4 allele which permits constitutive synthesis of maltase. Cells carrying this allele are able to utilize sucrose in the absence of the “clas...
