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Involvement of cytokinins in the germination of chick-pea seeds

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Abstract

Eight cytokinins detected in germinated chick-pea (Cicer arietinum L. var. Castellana) seeds were first present in the embryonic axes but appeared in the cotyledons after 12h of germination. The cytokinins detected in the cotyledons originate in the embryonic axes, but no passage of these substances from the cotyledons to the axes was detected, except when the seeds were treated with red light.

It is concluded that the role played by the embryonic axis in mobilizating the main reserves of the cotyledons is mainly effected through these cytokinins. Both natural and synthetic cytokinins exert an important regulatory role in the hydrolysis of reserve proteins and calcium could be involved as an intermediate.

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Abbreviations

BA:

benzyladenine

cot.:

cotyledon

(diH)Z:

dihydrozeatin

(diH)ZR:

dihydrozeatin riboside

GZR:

glycosyl zeatin riboside

2iP:

277-1

iPA:

277-2 riboside

Kin:

kinetin

Z:

zeatin

ZG:

zeatin glucoside

ZR:

zeatin riboside

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Authors and Affiliations

  1. Department of Plant Biology, Faculty of Biology, University of Salamanca, Salamanca, Spain

    N. Villalobos & L. Martin

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  1. N. Villalobos
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  2. L. Martin
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Villalobos, N., Martin, L. Involvement of cytokinins in the germination of chick-pea seeds. Plant Growth Regul 11, 277–291 (1992). https://doi.org/10.1007/BF00024567

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