Nitrate reductase activity in chicory roots following excision
نویسندگان
چکیده
منابع مشابه
Nitrate reductase activity in chicory roots following excision
In young chicory plantlets [Cichorium intybus L. Witloof cv. Flash), nitrate assimilation takes place mainly in the roots. Nitrate reductase activity (NRA) was measured in roots deprived of shoot control by excision and transferred into a sucrose-containing medium. Such a treatment resulted in a drop of about 60% of NRA within 3 h. The level of NR protein decreased after 12 h and the level of N...
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Nitrate is one of the major sources of nitrogen for the growth of plants. It is taken up by plant roots and transported to the leaves where it is reduced to nitrite in the. The main objective of this research was to investigate stimulatory effects of sodium nitrate, potassium nitrate, ammonia and urea on the production/generation of the nitrate reductase mRNA in Triticum aestivum plants. The pl...
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Experiments were conducted with segments of corn roots to investigate whether nitrate reductase (NR) is compartmentalized in particular groups of cells that collectively form the root symplastic pathway. A microsurgical technique was used to separate cells of the epidermis, of the cortex, and of the stele. The presence of NR was determined using in vitro and enzyme-linked immunosorbent assays. ...
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THE INDUCTION AND REINDUCTION OF NITRATE REDUCTASE IN ROOT TIP OR MATURE ROOT SECTIONS SHOW ESSENTIALLY A SIMILAR PATTERN: a lag, a period of rapid increase in enzyme activity and finally a period of relatively minor change. Both inductions are sensitive to 6-methylpurine and cycloheximide. Kinetic studies with 6-methylpurine suggest that the half-life of the messenger RNA for nitrate reductase...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 1997
ISSN: 0022-0957,1460-2431
DOI: 10.1093/jxb/48.1.59