By Susheng Gan
The medical and monetary value of plant senescence implies that a lot attempt has been made to appreciate the techniques concerned and to plan technique of manipulating them agriculturally. in past times few years there was substantial development during this regard, in particular within the molecular, genetic and genomic points. Senescence has an enormous impression on agriculture. for instance, leaf senescence limits crop yield and biomass creation, and contributes considerably to postharvest loss in vegetable and decorative vegetation in the course of transportation, garage and on cabinets. moreover, proteins, antioxidants and different dietary compounds are degraded in the course of senescence. Senescing tissues additionally turn into extra vulnerable to pathogen an infection, and a few of the pathogens may possibly produce pollution, rendering nutrition detrimental. Mitotic senescence can also ensure sizes of leaves, end result and entire crops.
This quantity summarizes contemporary progresses within the body structure, biochemistry, mobile biology, molecular biology, genomics, proteomics, and biotechnology of plant senescence. starting with a bankruptcy on senescence-related terminology and our present wisdom of mitotic senescence in crops (a much less well-studied area), the ebook makes a speciality of post-mitotic senescence, and contains chapters addressing the senescence of leaves, vegetation and culmination. Later chapters study the advance of varied new biotechnologies for manipulating the senescence tactics of fruit and leaves, a few of that are drawing close commercialization. The booklet is directed at researchers and execs in plant molecular genetics, body structure and biochemistry.Content:
Chapter 1 Mitotic Senescence in crops (pages 1–11): Susheng Gan
Chapter 2 Chlorophyll Catabolism and Leaf color (pages 12–38): Stefan Hortensteiner and David W. Lee
Chapter three Membrane Dynamics and legislation of Subcellular adjustments in the course of Senescence (pages 39–68): Marianne Hopkins, Linda McNamara, Catherine Taylor, Tzann?Wei Wang and John Thompson
Chapter four Oxidative tension and Leaf Senescence (pages 69–86): Ulrike Zentgraf
Chapter five Nutrient Remobilization in the course of Leaf Senescence (pages 87–107): Andreas M. Fischer
Chapter 6 Environmental legislation of Leaf Senescence (pages 108–144): Amnon Lers
Chapter 7 Developmental and Hormonal keep watch over of Leaf Senescence (pages 145–170): Jos H.M. Schippers, Hai?Chun Jing, Jacques Hille and Paul P. Dijkwel
Chapter eight The Genetic keep an eye on of Senescence published by means of Mapping Quantitative Trait Loci (pages 171–201): Helen Ougham, Ian Armstead, Catherine Howarth, Isaac Galyuon, Iain Donnison and Howard Thomas
Chapter nine Genomics and Proteomics of Leaf Senescence (pages 202–230): Marie?Jeanne Carp and Shimon Gepstein
Chapter 10 Molecular rules of Leaf Senescence (pages 231–255): Hyo Jung Kim, Pyung okay Lim and Hong Gil Nam
Chapter eleven Flower Senescence (pages 256–277): Michael S. Reid and Jen?Chih Chen
Chapter 12 Fruit Ripening and its Manipulation (pages 278–303): James J. Giovannoni
Chapter thirteen Genetic Manipulation of Leaf Senescence (pages 304–322): Yongfeng Guo and Susheng Gan
Read Online or Download Annual Plant Reviews Volume 26: Senescence Processes in Plants PDF
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Additional resources for Annual Plant Reviews Volume 26: Senescence Processes in Plants
In both Arabidopsis FCCs, the C13-methylester is hydrolyzed. One of them, At-FCC-1, carries an additional hydroxyl group, most probably at C82 . , 2003) (see below). 3 Nonﬂuorescent chlorophyll catabolites NCCs have been found in all higher plant species analyzed for the presence of colorless chl breakdown products and a convenient nomenclature has been proposed for distinction (Ginsburg and Matile, 1993). 2). 1). e. 1), modiﬁcation with various residues of the C82 position (R 2 ), and hydrolysis of the C13 carboxymethylester (R 3 ).
In the large majority of red-senescing species, the principal (and often the only) anthocyanin produced is cyanidin-3-glucoside. , 1992), but it is clear that the anthocyanins accumulated during leaf senescence are a small portion of those present in ﬂowers and fruits. This anthocyanin has a peak absorbance of 525–530 nm, broadened considerably in vivo because of the scattering of light within the mesophyll of the leaf. After a century or so of speculation about the potential physiological and ecological functions of anthocyanins in vegetative tissues, considerable progress has been made in the past decade.
Oikos 110, 339–343. B. M. (2005) Mechanistic analysis of wheat chlorophyllase. Arch Biochem Biophys 438, 146–155. E. and Arruda, P. (2002) Altering the expression of the chlorophyllase gene ATHCOR1 in transgenic Arabidopsis caused changes in the chlorophyll-to-chlorophyllide ratio. Plant Physiol 128, 1255–1263. R. and Arruda, P. (1998) Differential expression of a novel gene in response to coronatine, methyl jasmonate, and wounding in the Coi1 mutant of Arabidopsis. Plant Physiol 116, 1037–1042.