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154998

In vitro Propagation, Caulogenesis, and Tuberization of Ceropegia woodii Plants

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Last updated: 03 Jan 2025

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Abstract

Ceropegia woodii is a flowering plant in the genus Ceropegia L. which is one of the largest plant groups in the family Asclepiadaceae (Apocynaceae). The aim of this study is to develop an efficient protocol for the rapid in vitro micropropagation, caulogensis and in vitro tuberization of Ceropegia woodii Plants via enhanced axillary bud proliferation from single nodal explants cultured on full strength MS medium, 30g/l sucrose, 4g/l gelrite augmented with various concentrations of plant growth regulators as BA, NAA, IBA and their combinations. In general, the present study concluded that the best results for the initiation stage were recorded on MS medium fortified with NAA and BA at 2.00 and 0.50 mg/l, respectively. Meanwhile, supplemented medium with BA and NAA at 1.00 and 0.50 mg/l, respectively, gave rise to the best results for the multiplication stage. Regarding the rhizogenesis stage, the best results were recorded when the neoformed shoots of the multiplication stage were divided singly and cultured on MS medium plus IBA and NAA at 1.00 and 0.50 mg/l, respectively which led to the highest mean number of roots formed per propagule. For callus induction, the leave segments were cultured in to MS medium supplemented with different concentrations of BA and NAA. Meanwhile, supplemented medium with BA and NAA at 1.00 and 0.50 mg/l, respectively, gave rise to the best results for caulogensis stage. Concerning the percentage of explants formed callus and callus size, the best results obtained from BA and NAA at 0.50 mg/l and 2.00 mg/l, respectively for callus formation percentage, with high and intensive size and compact green colour and for callus size formed per propagule. The tuber induction medium was based on1/2 strength MS fortified with different combinations of sucrose and BA, gelled using 4 gm/l gelrite. Concerning The highest mean value of in vitro tuberization percentage, a number of in vitro formed tubers, highest mean of in vitro formed tubers weight and diameter was recorded at 8.00 mg/l BA and sucrose at 60g/l. Neoformed plantlets were acclimatized ex vitro and in vivo vigorously in a mixture of perlite and peatmoss at (1:1) or (2: 1) or (3: 1) or (2:3) and (3:3) consecutively, in addition to fixed volume (1 portion) of sand; which resulted in the highest mean value of survival percentage/plant (100%) and showed true-to-type plants ex vitro.

DOI

10.21608/eajbsh.2021.154998

Keywords

Ceropegia woodii. Asclepiadaceae. Apocynaceae, Micropropagation. Caulogensis. in vitro tuberization.in vitro. in vivo.ex vitro. Acclimatization

Authors

First Name

Ahmed

Last Name

Barakat

MiddleName

A.

Affiliation

Botanical Gardens Res. Dept., Hort. Res. Inst., Agric. Res. Center, Alexandria, Egypt

Email

ahmed.barakat@arc.sci.eg

City

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Orcid

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First Name

Fatma El-Zahraa

Last Name

El- Tony

MiddleName

H.

Affiliation

Ornamental Plant Res. Dept., Hort. Res. Inst., Agric. Res. Center, Alexandria, Egypt

Email

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City

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Orcid

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First Name

Mohamed

Last Name

Gaber

MiddleName

K.

Affiliation

Plant Production Dept., Faculty of Agriculture Saba Basha, Alexandria University, Alexandria, Egypt.

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Volume

12

Article Issue

1

Related Issue

20135

Issue Date

2021-06-01

Receive Date

2020-11-02

Publish Date

2021-01-26

Page Start

53

Page End

74

Print ISSN

2090-3812

Online ISSN

2090-3820

Link

https://eajbsh.journals.ekb.eg/article_154998.html

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https://eajbsh.journals.ekb.eg/service?article_code=154998

Order

7

Type

Original Article

Type Code

693

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences, H. Botany

Publication Link

https://eajbsh.journals.ekb.eg/

MainTitle

In vitro Propagation, Caulogenesis, and Tuberization of Ceropegia woodii Plants

Details

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Article

Created At

22 Jan 2023