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Books > Science & Mathematics > Physics > Applied physics & special topics > Cryogenics

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Cryopreservation of Plant Germplasm I (Hardcover, 1995 ed.) Loot Price: R8,819
Discovery Miles 88 190
Cryopreservation of Plant Germplasm I (Hardcover, 1995 ed.): Y.P.S. Bajaj

Cryopreservation of Plant Germplasm I (Hardcover, 1995 ed.)

Y.P.S. Bajaj

Series: Biotechnology in Agriculture and Forestry, 32

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Loot Price R8,819 Discovery Miles 88 190 | Repayment Terms: R826 pm x 12*

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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."

General

Imprint: Springer-Verlag
Country of origin: Germany
Series: Biotechnology in Agriculture and Forestry, 32
Release date: September 1995
First published: 1995
Authors: Y.P.S. Bajaj
Dimensions: 235 x 155 x 30mm (L x W x T)
Format: Hardcover
Pages: 514
Edition: 1995 ed.
ISBN-13: 978-3-540-57451-4
Categories: Books > Science & Mathematics > Physics > Applied physics & special topics > Cryogenics
Books > Science & Mathematics > Biology, life sciences > Botany & plant sciences > Plant physiology > General
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LSN: 3-540-57451-4
Barcode: 9783540574514

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