Enzyme Levels in Pea Seedlings Grown on Highly Salinized Media
نویسندگان
چکیده
منابع مشابه
Effect of growth in highly salinized media on the enzymes of the photosynthetic apparatus in pea seedlings.
The rate of chlorophyll formation in initially etiolated pea seedlings (Pisum sativum) that are growing in the light in salinized media is slower than in similar plants not subjected to salinity. However, the final steady state level of chlorophyll is the same under both conditions. Growth under saline conditions did not change the ratio of dry weight to wet weight in the plant leaves nor the s...
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The effect of gibberellic acid (GA) on light-induced greening of etiolated pea plants (Pisum sativum [L.] cultivars Alaska and Progress) was characterized. Progress, a GA-deficient dwarf of Alaska, was found to accumulate chlorophyll and light harvesting chlorophyll protein associated with photosystem 11 (LHC-11) more rapidly than Alaska, Alaska treated with GA, or Progress treated with GA. A s...
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The control exerted by light on leaf and stem growth in light-grown Alaska pea seedlings was studied during the main photoperiod. Two high irradiance responses were observed. The action spectrum for one had a single sharp peak at 600 nanometers. The action spectrum for the other showed a broad peak between 440 and 470 nanometers. These two light responses must be activated simultaneously for an...
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There appears to be an orderly transition from one photosensitive state to another in light-controlled stem elongation in the garden pea, Pisum sativum L. cv. Alaska. Stem elongation in dark-grown plants is known to be phytochrome-controlled. However, seedlings are insensitive to phytochrome after a red light pretreatment. An action spectrum for inhibition in these seedlings has peaks at 440 an...
متن کاملSites of gibberellin biosynthesis in pea seedlings.
Potential sites of gibberellin biosynthesis in 10-day-old ;Alaska' pea (Pisum sativum L.) seedlings were investigated using a cell-free ezyme system capable of incorporating [(14)C]-mevalonic acid into ent-kaurene. In peas, ent-kaurene is assumed to be a committed intermediate in the gibberellin biosynthetic pathway. Comparative results from enzyme assays using extracts from shoot tips, leaf bl...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1970
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.46.3.466