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Cryopreservation of sweetpotato (Ipomoea batatas) and its pathogen eradication by cryotherapy

Paper ID Volume ID Publish Year Pages File Format Full-Text
14368 1213 2011 10 PDF Available
Title
Cryopreservation of sweetpotato (Ipomoea batatas) and its pathogen eradication by cryotherapy
Abstract

Sweetpotato (Ipomoea batatas) ranks as the seventh most important staple crop in the world and the fifth in developing countries after rice, wheat, maize and cassava. Sweetpotato is mainly grown in developing countries, which account for more than 95% of total production of the whole world. Genetic resources, including cultivated varieties and wild species, are a prerequisite for novel sweetpotato breeding in both conventional and genetic engineering programs. Various cryopreservation protocols have been developed for shoot tips and embryogenic tissues. The former explants are preferred for long-term conservation of sweetpotato genetic resources, while the latter are valuable for sweetpotato genetic improvement. This review provides update comprehensive information on cryopreservation of sweetpotato shoot tips and embryogenic tissues.Plant pathogens such as viruses and phytoplasma severely hamper high yield and high quality production of sweetpotato. Thus, usage of pathogen-free planting materials is pivotal for sustainable sweetpotato production. Cryotherapy of shoot tips can efficiently eradicate sweetpotato pathogens such as viruses and phytoplasma. The mechanism behind pathogen eradication by cryotherapy of shoot tips has been elucidated. Pathogen eradication by cryotherapy provides an alternative, efficient strategy for production of pathogen-free plants. In addition, cryopreserved tissues may also be considered to be safer for exchange of germplasm between countries and regions.

Keywords
Cryopreservation; Cryotherapy; Embryogenesis; Ipomoea batatas; Pathogen eradication; Shoot regeneration; Shoot tips; Sweetpotato; Phytoplasma; Virus
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Cryopreservation of sweetpotato (Ipomoea batatas) and its pathogen eradication by cryotherapy
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 29, Issue 1, January–February 2011, Pages 84–93
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us