Read e-book online Seeds: Physiology of Development and Germination PDF

By J. Derek Bewley

ISBN-10: 0306447487

ISBN-13: 9780306447488

ISBN-10: 1489910026

ISBN-13: 9781489910028

In reaction to huge, immense contemporary advances, quite in molecular biology, the authors have revised their warmly acquired paintings. This re-creation contains updates on seed improvement, gene expression, dormancy, and different matters. it's going to function the field's normal textbook and reference resource for a few years to come.

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Embryo-specific mutants of maize. The stages of development affected by the mutations are shown. Mutants do not develop beyond the particular stage. Although there are 51 separate mutants, many block variably over two or three neighboring stages which is why the numbers add up to more than 51. 5 rnm. After Sheridan and Clark (1993). their translocation from the vegetative plant to the seed, and the effects of the environment on seed yield. 1. Cereals Development of the cereal grain can be divided into two stages: grain enlargement and grain filling.

In high-triacylglycerol seeds the oil bodies occupy a substantial volume of the cell, as in the castor bean endosperm (Fig. 6B). 3. 3. Proteins According to Osborne's classification, seed proteins can be divided into four classes on the basis of their solubility: (1) albumins-soluble in water and dilute buffers at neutral pHs; (2) globulins-soluble in salt solutions but insoluble in water; (3) glutelins-soluble in dilute acid or alkali solutions; (4) prolamins-soluble in aqueous alcohols (70-90%).

5 11 7 11 7-8 12 Average mass (kOa) Name of holoprotein Subunits (kOa) 186 360 150 328 150 340 150 360 160 330 Vicilin Legumin Vicilin Legumin Glycoprotein I Glycoprotein II Alfin Medicagin p-Conglycinin Glycinin 12,14,18,24,30,50,75 18,20,25,27,37,40 31,33,46,56 20,37 43,47,53 30,32,34 14,16,20,32,38,50 59,63,64,65,67,69 42,57 19,37,42 "Based on Miflin and Shewry (1981), Larkins (1981), and Krochko and Bewley (1988). See Casey et al. (1986) for a more complete account. the vicilins and legumins from alfalfa (lucerne, Medicago sativa) are shown in Fig.

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Seeds: Physiology of Development and Germination by J. Derek Bewley

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