The nature of N-, P- and K-deficiency effects in rice

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概要

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• Effects of N-, P- and K-deficiencies on RNA synthesis in TN-1 rice, Sonalika wheat and B-75 gram was examined at the molecular level. The melting temperatures of the chromatin of TN-1 rice, Sonalika wheat and B-75 gram was increased by deficiency conditions. In TN-1 rice the template activity of chromatin was reduced considerably, most remarkably in the case of the N-deficiency. The base composition of the newly synthesized RNA of the deficient roots also was altered. These changes were accompanied by an increase in the histone-DNA ratio. There was, however, no qualitative change in the histone patterns. The chromatin of deficient tissues bound less actinomycin D than did that of the control, and the binding of labelled cations and anions also decreased. In deficient plants endo- and exo-nuclease activities were enhanced, accompanied by decreases in the intrinsic viscosity, sedimentation co-efficient and chain lengths of DNA.

• 日本植物生理学会の論文

著者

• Sen S.p.

  Department Of Botany Kalyani University

• Das B.k.

  Department Of Botany University Of Kalyani:(present)central Sericulture Research Institute

• Das B.k.

  Department Of Botany University Of Kalyani

関連論文

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• RNA Synthesis in Leaves During Initiation of the Reproductive Phase in Rice : The Day-neutral Cultivar IR-8
• Relationship between a mineral deficiency and metabolic processes : The effect of N-, P- and K-deficiencies on RNA metabolism in TN-1 rice
• The photosynthetic production of oxalic acid in Oxalis corniculata
• Phytochrome Regulation of RNA Synthesis in Isolated Coconut Nuclei
• RNA Synthesis in Leaves During Initiation of the Reproductive Phase in Rice : The Short-day Cultivar Rupsail
• The nature of N-, P- and K-deficiency effects in rice

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