Ribonucleases in vascular plants: Cellular distribution and changes during development

Dove, Lewis D.

doi:10.1016/0031-9422(73)85058-7

Cited by 31 publications

(12 citation statements)

References 101 publications

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“…This is also true for cut roses as was demonstrated by increased RNase activity and protein degradation in cut flowers as compared with intact ones (Figure 8). These two processes are known to be associated with senescence of many plant tissues (Dove 1973, Sacher 1973. Water stress has a similar effect on enhancing the processes of senescence (Gates 1968), including RNase activity (Dove 1967, Todd 1972.…”

Section: Days After Detachmen Days After Sta3e Amentioning

confidence: 99%

The Action of Kinetin in Improving the Water Balance and Delaying Senescence Processes of Cut Rose Flowers

Mayak

Halevy

1974

Physiologia Plantarum

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Kinetin delays the fading of cut rose (Rosa hyb. cv. Golden Wave) flower shoots exposed to water stress conditions. Using leafless flower shoots {i.e., a plant system devoid of stomates), we demonstrated that the main initial effect of kinetin was on increasing water uptake and petal growth. Later, kinetin slowed down processes associated with both senescence and stress (RNase activity and dry weight reduction), and maintained petal turgidity for an extended period.

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Section: Days After Detachmen Days After Sta3e Amentioning

confidence: 99%

The Action of Kinetin in Improving the Water Balance and Delaying Senescence Processes of Cut Rose Flowers

Mayak

Halevy

1974

Physiologia Plantarum

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“…Presence of a number of RNase in plants has been well documented and these different isoforms of RNase occupy different intracellular positions (Dove, 1973). RNase is considered as a sensitive marker enzyme for stress conditions and its activity gets altered under various stressful conditions including heavy metal toxicity (Shah and Dubey, 1995;Booker, 2004).…”

Section: Introductionmentioning

confidence: 99%

Inhibition of ribonuclease and protease activities in arsenic exposed rice seedlings: Role of proline as enzyme protectant

Mishra

Dubey

2006

Journal of Plant Physiology

154

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“…Water stress is known to have multifarious effects on plant growth and metabolism (Hsiao 1973). Alterations in physiological and biochemical processes arid enzymatic activities of leaves from stressed plants have been reported (Bardzik et al 1971, Boggess et al 1976, Brix 1962, Darbyshire 1971, Dove 1973, Kathju and Lahiri 1976, Stewart 1971, Zeevaart 1971. But the exact biochemical mechanism associated with water stress is not yet known.…”

Section: Introductionmentioning

confidence: 99%

Biochemical Changes in Excised Leaves of Oryza sativa Subjected to Water Stress

Dwivedi

Kar

Mishra

1979

Physiologia Plantarum

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Excised rice (Oryza sativa L. cv. Ratna) leaves were used to compare the changes in the levels of various biochemical intermediates and enzyme activities during senescence in turgid and water‐stressed conditions. Chlorophyll, total protein and soluble protein content decreased but α‐amino nitrogen content increased during the senescence of turgid leaves. In the leaves subjected to water stress, these changes were accelerated, the acceleration being greater with higher degree of water stress. Starch, soluble sugars, total carbohydrates and non‐reducing sugar content decreased during senescence of turgid leaves. Water stress accelerated the changes in the levels of starch and non‐reducing sugar, but the changes in the levels of soluble sugars and total carbohydrates were retarded. Reducing sugar content increased at first and then decreased in the turgid leaves, and water stress accelerated the change. The decline in the catalase activity and the increase in the peroxidase activity with time was faster in the water‐stressed leaves than in the turgid leaves. Acid inorganic pyrophosphatase activity increased, but alkaline inorganic pyrophosphatase activity decreased during the senescence of turgid leaves, and such changes were accelerated by water stress. The results suggest that water stress does not accelerate all the processes connected with leaf senescence.

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Ribonucleases in vascular plants: Cellular distribution and changes during development

Cited by 31 publications

References 101 publications

The Action of Kinetin in Improving the Water Balance and Delaying Senescence Processes of Cut Rose Flowers

The Action of Kinetin in Improving the Water Balance and Delaying Senescence Processes of Cut Rose Flowers

Inhibition of ribonuclease and protease activities in arsenic exposed rice seedlings: Role of proline as enzyme protectant

Biochemical Changes in Excised Leaves of Oryza sativa Subjected to Water Stress

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