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ACTIVITIES OF L-ASPARAGINASE FROM CICER COTYLEDONS UNDER DIFFERENT TREATMENTS

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Last updated: 04 Jan 2025

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Abstract

L-asparaginase (EC 3.5.1.1) activity is measured in Cicer arietinum cotyledons. Studying the relation between germination time of Cicer and L-asparaginase activity throughout 7 days revealed that L-asparaginase activity increased gradually up to the 5th day of germination after which it is declined.Jasmonic acid (JA) induced L-asparaginase activity and 100 µM was the best concentration for the induction.Treatment of cotyledons with 100 µM JA resulted in the increase of the activity increased throughout the experimental period.  The results showed that incubating the cotyledons with 100 µM GA3 for 24 h resulted in the induction of the enzyme activity. However, incubation with 100 µM ABA for 24 h caused a reduction in the enzyme activity. The induction of L-asparaginase by GA3 was time-dependent throughout the experimental period of 72 h. The results show that very low activity of the enzyme was recorded in cotyledons exposed to dark in absence of L-asparagine.Actinomycin D, cycloheximide and chloramphenicol inhibited the induction of L-asparaginase activity by GA3 or kinetin in Cicer cotyledons.

DOI

10.21608/jpp.2009.116611

Authors

First Name

H. M.

Last Name

El-Shora

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Affiliation

Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt

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First Name

Laila A. U.

Last Name

El-Naqeeb

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Affiliation

Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt

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Volume

34

Article Issue

1

Related Issue

17534

Issue Date

2009-01-01

Receive Date

2020-10-03

Publish Date

2009-01-01

Page Start

269

Page End

277

Print ISSN

2090-3669

Online ISSN

2090-374X

Link

https://jpp.journals.ekb.eg/article_116611.html

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https://jpp.journals.ekb.eg/service?article_code=116611

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2

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Original Article

Type Code

887

Publication Type

Journal

Publication Title

Journal of Plant Production

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https://jpp.journals.ekb.eg/

MainTitle

ACTIVITIES OF L-ASPARAGINASE FROM CICER COTYLEDONS UNDER DIFFERENT TREATMENTS

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Article

Created At

22 Jan 2023