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Changes in Phytohormone Contents in Chickpea Seeds Germinating Under Lead or Zinc Stress

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Date

2005

Journal Title

Journal ISSN

Volume Title

Publisher

Acad Sciences Czech Republic, inst Experimental Botany

Abstract

The present work describes the changes that take place in phytohormone contents in germinating chickpea (Cicer arietinum cv. Aziziye-94) seeds in response to heavy metal stress. For this aim, endogenous abscisic acid (ABA), gibberellic acid (GA(3)), zeatin (Z) and zeatin riboside (ZR) contents were followed for 24, 48 and 72 h in chickpea seeds germinating at the concentrations of 0.1, 1.0 and 5.0 mM Pb or 0.1, 1.0 and 10 mM Zn. The results showed that Pb and Zn significantly delayed and impeded the germination of chickpea seeds. The negative effect of Pb on germination was higher than that of Zn. Further, Pb increased ABA and Z contents while decreased GA(3) content in the germinating seeds. The high concentrations of Zn (1.0 and 10 mM) decreased contents of Z, ZR and GA(3) while 0.1 mM Zn increased the content of the same hormones. The ABA content was enhanced by Zn in all concentrations used.

Description

Agar, Guleray/0000-0002-8445-5082; Atici, Okkes/0000-0001-6256-5101

Keywords

Abscisic Acid, Cicer Arietinum, Cytokinins, Germination, Gibberellic Acid, Heavy Metal Stress, Hplc

Turkish CoHE Thesis Center URL

WoS Q

Q3

Scopus Q

Q2

Source

Volume

49

Issue

2

Start Page

215

End Page

222