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221645

IMPROVEMENT OF IN VITRO PROPAGATION OF JOJOBA BY LOW CONCENTRATIONS OF NaCl OR MANNITOL

Article

Last updated: 28 Dec 2024

Subjects

-

Tags

Botany and Microbiology

Abstract

This work was done to improve our understanding about the effect of growth regulators on micropropagation and gene expression of stress tolerant jojoba plant and how they were influenced by the presence of different stress agents. Genetic variation of plants obtained from seeds of jojoba, was checked using RAPD technique. The registered genetic variation was too high and to avoid it, offspring one shoot was used in this study. A combination of 3 mg/l BAP and 0.1 mg/l NAA was the best for jojoba micropropagation, while changing the concentrations from that decreased shoot multiplication and growth. Application of GA3 is not recommended for in vitro multiplication of jojoba. In case of jojoba as stress tolerant plant species, the effect of the selected growth regulators combination (3 mg/l BAP + 0.1 mg/l NAA) on micropropagation was improved when high salt-MS medium containing low concentrations of NaCl or mannitol was used. The negative effect of NaCl or mannitol on in vitro shoot growth was only detected at concentration 4 g/l. On the other side, lead acetate abolished the effect of growth regulators on jojoba micropropagation even in low concentration. Isoenzymes and SDS-PAGEs indicated that the registered effects of growth regulators and stress agents on shoot multiplication and growth were associated with variation in gene expression.

DOI

10.21608/aunj.2016.221645

Keywords

in vitro regeneration, Gene expression, RAPD, abiotic stress, Simmondsia chinensis

Volume

45

Article Issue

1

Related Issue

31638

Issue Date

2016-06-01

Receive Date

2022-02-24

Publish Date

2016-06-01

Page Start

1

Page End

22

Print ISSN

2812-5029

Online ISSN

2812-5037

Link

https://aunj.journals.ekb.eg/article_221645.html

Detail API

https://aunj.journals.ekb.eg/service?article_code=221645

Order

221,645

Type

Novel Research Articles

Type Code

2,242

Publication Type

Journal

Publication Title

Assiut University Journal of Multidisciplinary Scientific Research

Publication Link

https://aunj.journals.ekb.eg/

MainTitle

IMPROVEMENT OF IN VITRO PROPAGATION OF JOJOBA BY LOW CONCENTRATIONS OF NaCl OR MANNITOL

Details

Type

Article

Created At

23 Jan 2023