Cryopreservation of Plant Germplasm II, L.E. Towill; Y.P.S. Bajaj

Автор: Y. P. S. Bajaj
Название: Cryopreservation of Plant Germplasm I
ISBN: 3642081843 ISBN-13(EAN): 9783642081842
Издательство: Springer
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Описание: The germ plasm of numerous plant species, especially those of forest trees, some agricultural crops, and medicinal plants, is endangered and threatened with extinction. This depletion of germplasm pools and the shrinkage of naturally occurring genetic resources have caused international concern. Conventionally, the germplasm of plants is conserved through seeds, tubers, roots, corms, rhizomes, bulbs, cuttings, etc. However, the germ plasm of a number of trees and plantation crops (such as coconut, cocao, coffee, oil palm, rubber, mango, horse chestnut, etc. ) cannot be preserved since their seed are short-lived (recalcitrant). Likewise, germplasm of vegetatively propagated crops (such as potato and cassava) cannot be stored on a long- term basis and has to be grown and multiplied periodically in nurseries and fields. The plants are thus exposed to unpredictable weather conditions and diseases, with the result that instances are known where entire genetic stocks are lost. Therefore, unconventional methods are being developed for the storage and international exchange of germplasm. For this purpose in vitro cultures have been employed, but they can only enable short-to medium- term preservation; moreover, cell cultures upon repeated subculture undergo genetic erosion. In view of the recent developments in the in vitro induction of genetic variability through somaclonal variation, somatic hybridization, recombinant DNA technology, etc., new methods need to be employed for the storage of desirable cultures. In this regard freeze preservation of cells in liquid nitrogen (-196 0q, like that of semen, enables long-term storage, theoretically, for an indefinite period of time.

Автор: Barbara B.M. Reed
Название: Plant Cryopreservation: A Practical Guide
ISBN: 1441924728 ISBN-13(EAN): 9781441924728
Издательство: Springer
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Описание: Cryopreservation has proven to be an important tool for the storage and conservation of plant genetic resources. This book is a unique resource for plant scientists, providing more than 100 ready-to-use cryopreservation protocols for plant types from algae and bryophytes to a range of flowering plants.

Автор: John G. Day; Glyn Stacey
Название: Cryopreservation and Freeze-Drying Protocols
ISBN: 1617375284 ISBN-13(EAN): 9781617375286
Издательство: Springer
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Описание: This widely expanded second edition offers a compilation of robust, reproducible techniques for the conservation of a wide range of biological materials. It includes novel approaches and protocols that were not preservable when the first edition was published.

Автор: Guoping Zhang
Название: Exploration, Identification and Utilization of Barley Germplasm
ISBN: 0128029226 ISBN-13(EAN): 9780128029220
Издательство: Elsevier Science
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Описание: Exploration, Identification and Utilization of Barley Germplasm explores the timely global challenges related to barley production posed by the narrowing of biodiversity and problem soils, identifying elite genotypes which will enhance barley breeding and be essential to genetic and evolution studies. The book covers the utilization of barley germplasm for improving the quality of both food and feed barley as well as exploring and utilizing varieties of germplasm that are tolerant to drought, waterlogged, salt, and acid soil. Chapters are devoted to prime strategies for future research, including identifying barley germplasm by applying Omics, exploring barley germplasm by means of the Focused Identification of Germplasm Strategy (FIGS), and creating barley germplasm through mutation. . Users will find this book to be a key research reference for both professionals and academics, providing a comprehensive update for established barley researchers that equips them with an understanding of the new methodologies needed for innovation and discovery, while also providing a helpful entry to the subject for young researchers and students.

Автор: Lloyd Knutson; Allan K. Stoner
Название: Biotic Diversity and Germplasm Preservation, Global Imperatives
ISBN: 0792301781 ISBN-13(EAN): 9780792301783
Издательство: Springer
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Описание: Invited papers presented at a symposium held May 9-11, 1988 at the Beltsville Agricultural Research Center (BARC),Beltsville, Maryland