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Plant Developmental Biology - Biotechnological Perspectives Volume 2

:	Eng Chong Pua, Michael R. Davey
:	Eng Chong Pua, Michael R. Davey
:	Plant Developmental Biology - Biotechnological Perspectives Volume 2
:	Springer-Verlag
:	9783642046704
:	1
:	CHF 189.30
:

:	Botanik
:	English

:	424
:	Wasserzeichen
:	PC/MAC/eReader/Tablet
:	PDF

This work, comprising two volumes, reviews recent advances in plant developmental biology and explores the possibility of their biotechnological applications. The work is a key reference for plant breeders, researchers and graduate students.

	Chapter 1: Developmental Biology of Somatic Embryogenesis	22
	Introduction	22
	Basic Requirements for In Vitro SE	23
	Explant and Stem Cell Biology	24
	Genotype	24
	Explant Cells	25
	Earliest Event in Embryogenesis-Asymmetric Cell Division	27
	Cell Wall in Establishment of Polarity, Division Asymmetry and Cell Fate	27
	Division Asymmetry in the Initiation of SE	29
	Asymmetric Division and the Suspensor in SE	29
	Stress Component in the Initiation of SE	30
	Reactive Oxygen Species	30
	Stress-Related Hormone Signalling	31
	Hormones and the Initiation of SE	32
	Induction of SE by Over-Expression of Leafy Cotyledon Transcription Factors and Their Relationship to SE Induction and Repress	33
	ABA, Stress and GA	35
	Soluble Signals and Cell-Cell Interactions that Promote SE in Suspension Cultures	35
	Secreted Proteins that Influence SE	35
	AGP Signalling in SE: Mechanisms and Interactions Between Signalling Pathways	36
	Cell-Cell Interaction and Relevance to SE in Suspension Cultures	37
	Development Program After SE Induction	38
	Concluding Remarks and a Model Based on Studies in Medicago truncatula	38
	SE and Biotechnology	39
	References	40
	Chapter 2: Microspore Embryogenesis	46
	Introduction	46
	Discovery of the Production of Haploids by Anther Cultureanther culture	48
	Strategies for the Induction of Microspore Embryogenesis	48
	Influence of Different Factors in Microspore Embryogenesis	49
	Genotype	49
	Donor Plant Physiology	50
	Stage of Pollen Development	50
	Pre-treatments	51
	Culture Conditions	51
	Composition of the Medium	52
	Cellular and Molecular Events Associated with Microspore Embryogenesis	53
	Embryogenic Induction	53
	Early Embryogenic Divisions	56
	Development of Embryo Pattern	57
	Plant Formation and Diploidization	58
	Conclusions	58
	References	59
	Chapter 3: Stress and Somaclonal Variation	64
	Introduction	64
	Stress Responses in Plants	65
	Short-Term Responses	65
	Long-Term Responses	66
	Modifications Induced by Stress Could be Inheritable	68
	Tissue Culture Imposes a Stress to Cultivated In Vitro Cells	69
	Cultured Cellscultured cells and Regenerated Plantsregenerated plants Show Variations	71
	Heritable Changes Versus Non-Heritable Changes	73
	Genetic Versus Epigenetic Changes	74
	Variation Promoted by Tissue Culture is Not Randomly Distributed in the Genome	76
	Are New Alleles Originated by In Vitro Stress Already Present in Other Plants of In Vivo Populations?	77
	Concluding Remarks	77
	References	77
	Chapter 4: Photosynthate Partitioning	85
	Introduction	85
	Source and Sink	87
	Sugars as Signalling Molecules	87
	Key Metabolic Regulators	88
	SNF1-Related Protein Kinase 1 (SnRK1)	88
	Hexokinase	92
	The Trehalose Pathway	92
	Applications in Biotechnology	93
	Concluding Remarks	97
	References	98
	Chapter 5: Molecular Physiology of Seed Maturation and Seed Storage ProteinSeed Storage Protein Biosynthesis	101
	Introduction	101
	Seed MaturationSeed maturation	102
	SucroseSucrose as a Maturation Signal	103
	Synthesis and Deposition of Storage Proteins in Crop Seedscrop seeds	104
	Storage Proteins in Cereals	105
	Storage Proteins in the Different Grain Parts	105
	Transcriptional RegulationTranscriptional regulation of Arabidopsis Seed MaturationArabidopsis seed maturation	107
	Transcriptional Regulation of Arabidopsis Seed Maturation-a Model Also for Cereal Seeds?	107
	Unravelling Transcriptional Regulation by Co-Expression Analysisco-expression analysis	108
	DNA MethylationDNA methylation and Storage Protein Gene Expression in the Barley Endosperm	110
	Metabolic ControlMetabolic control of Seed Storage Protein Synthesis	111
	Nitrogen Availability and Signalling	111
	Nitrogen TransportNitrogen transport into Seeds	112
	Overexpression of an Amino Acid Transporteramino acid transporter in Legume Seeds	112
	Carbon Availability	114
	Response to Increased Nitrogen to Carbon Statuscarbon status	114
	Overexpression of Phosphoenolpyruvate Carboxylasephosphoenolpyruvate carboxylase in Narbon Beans	114
	Repression of ADP-Glucose PyrophosphorylaseADP-glucose pyrophosphorylase in Narbon Beans	115
	Repression of ADP-Glucose Pyrophosphorylase in Pea	116
	Outlook	116
	References	117
	Chapter 6: Fatty Acid Biosynthesis and Regulation in Plants	123
	Introduction	123
	Fatty Acid Biosynthesis	124
	De Novo Fatty Acid Biosynthesis	124
	Regulation of ACCase	126
	Fatty Acid Elongation	127
	Fatty Acid Desaturation	128
	Unusual Fatty Acids	128
	Assembly of Fatty Acids	129
	Conclusions	130
	References	130
	Chapter 7: Biosynthesis and Regulation of Carotenoids in Plants-Micronutrients, Vitamins and Health Benefits	1