Effect of plant growth regulators and different nitrogen sources on NADP-isocitrate dehydrogenase activity of radish cotyledons

• Autorzy: Sood C R , Chanda S.V. , Singh Y.D.
• Języki publikacji: EN

Abstrakty

EN

NADP-isocitrate dehydrogenase (NADP-ICDH) activity of radish (Raphanus sativus L.) seedlings pretreated with various plant growth regulators: KiN, GA, and ABA and different nitrogen sources viz. KNO₃, NH₄Cl and NH₄NO₃ in light and dark was investigated. ICDH activity was significantly higher in light than in dark; addition of different nitrogen sources reduced it to a greater extent in NO₃ supplementation. Among hormonal treatment only KiN showed slight promotion with KNO₃ and NH₄NO₃. On the other hand in light KNO₃ and/or NH₄NO₃ promoted ICDH activity and among hormones, KiN significantly promoted the activity in KNO₃ and NH₄NO₃ supplemented seedlings while ABA was effective in NH₄CL. It is suggested that in non-photosynthetic tissues, NADP-ICDH provides both reductant and carbon skeleton for glutamate synthesis.

Słowa kluczowe

EN

Raphanus sativus; nitrogen; cotyledon; growth regulator; isocitrate dehydrogenase; plant growth; radish

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 1998
• Tom: 20
• Numer: 4
• Opis fizyczny: p.353-357,fig.

Twórcy

autor

Sood C R

• Saurashtra, Rajkot 360 005, India

autor

Chanda S.V.

autor

Singh Y.D.

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