منابع مشابه
The elements of plant micronutrients.
Amino acid R groups in proteins provide a limited repertoire of functional groups for catalyzing biochemical transformations. The use of inorganic elements, particularly the first row transition metals, expands greatly the range of chemistry that can be catalyzed in a cell. Zinc ions are key for enzymatic catalysis of reactions that require an electrophile, while iron, manganese, copper, nickel...
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Chitin and chitosan are naturally-occurring compounds that have potential in agriculture with regard to controlling plant diseases. These molecules were shown to display toxicity and inhibit fungal growth and development. They were reported to be active against viruses, bacteria and other pests. Fragments from chitin and chitosan are known to have eliciting activities leading to a variety of de...
متن کاملFuture Perspectives in Plant Biology The Elements of Plant Micronutrients
Amino acid R groups in proteins provide a limited repertoire of functional groups for catalyzing biochemical transformations. The use of inorganic elements, particularly the first row transition metals, expands greatly the range of chemistry that can be catalyzed in a cell. Zinc ions are key for enzymatic catalysis of reactions that require an electrophile, while iron, manganese, copper, nickel...
متن کاملPlant protection with inorganic ions.
Gradients of salts of the specific ion repellents for Meloidogyne incognita -- NH, K, Cl, and NO -- have been demonstrated to shield tomato roots from infestation in soil. The strategy of these greenhouse experiments was to interpose a salt barrier in a soil column between the plant roots and the nematodes. The relative effectiveness of the salts as a barrier to infective second-stage juveniles...
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The development and use of many efficient and economical pesticides, since the 1940s, have permitted unprecedented crop and animal protection, and improved public health. Despite the positive effects mentioned above, many problems arose, such as the destruction of other pests in addition to target pests, destruction of natural enemies, pest resistance, and the health hazards caused by pesticide...
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ژورنال
عنوان ژورنال: Soil Science
سال: 1952
ISSN: 0038-075X
DOI: 10.1097/00010694-195202000-00012