Get Annual Plant Reviews Volume 26: Senescence Processes in PDF

By Susheng Gan

ISBN-10: 0470988851

ISBN-13: 9780470988855

ISBN-10: 1405139846

ISBN-13: 9781405139847

The medical and fiscal value of plant senescence signifies that a lot attempt has been made to appreciate the techniques concerned and to plan technique of manipulating them agriculturally. in the past few years there was enormous growth during this regard, in particular within the molecular, genetic and genomic points. Senescence has an immense impression on agriculture. for instance, leaf senescence limits crop yield and biomass creation, and contributes considerably to postharvest loss in vegetable and decorative plants in the course of transportation, garage and on cabinets. furthermore, proteins, antioxidants and different dietary compounds are degraded in the course of senescence. Senescing tissues additionally develop into extra liable to pathogen an infection, and a few of the pathogens may perhaps produce pollutants, rendering foodstuff detrimental. Mitotic senescence can also be certain sizes of leaves, end result and full crops.

This quantity summarizes fresh progresses within the body structure, biochemistry, phone 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 specializes in post-mitotic senescence, and contains chapters addressing the senescence of leaves, flora and end result. Later chapters research the advance of assorted new biotechnologies for manipulating the senescence tactics of fruit and leaves, a few of that are imminent commercialization. The ebook is directed at researchers and pros 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 rules of Subcellular alterations in the course of Senescence (pages 39–68): Marianne Hopkins, Linda McNamara, Catherine Taylor, Tzann?Wei Wang and John Thompson
Chapter four Oxidative rigidity 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 law 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 law 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

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Extra resources for Annual Plant Reviews Volume 26: Senescence Processes in Plants

Sample text

1), colorless derivatives of pyro forms or of 132 -hydroxylated forms of chl have so far escaped detection. 1 — — — — — — MCS PAO RCCR CBR CAR CLH Abbreviation Enzyme activity Enzyme activity AtCLH1: At1g19670 AtCLH2: At5g43860 Enzyme activity At3g44880 At4g37000 Activity Enzyme activity — — — Enzyme activity AtMRP2: At2g34660 AtMRP3: At3g13080 Identification/gene locus in Arabidopsis Plastids Plastids, inner envelope Plastids, stroma Plastids, envelope Cytosol? — — — Cytosol Tonoplast Plastids, thylakoid Plastids Plastids, vacuole?

Pyrrole rings (A–D), methine bridges (α–δ) and relevant carbon atoms are labeled in chl. R 0 = CH 3 , chl a; R 0 = CHO, chl b. R 1 –R 3 in modified FCCs and NCCs indicate side-chain groups as follows: D, dihydroxyethyl; H, hydrogen; M, methyl; OG, O-glucosyl; OGM, O-glucosyl-malonyl; OH, hydroxyl; OM, O-malonyl; V, vinyl. Note that only in two cases have modified FCCs been structurally analyzed. 2. CHLOROPHYLL CATABOLISM AND LEAF COLORATION 15 ones may represent products of oxidative activities or artifacts of tissue extraction, not related to ‘natural’ chl breakdown during leaf senescence.

This was interpreted as NCCs representing the final catabolites of chl breakdown, but a few recent reports indicate degradation of chl beyond the stage of NCCs. Thus, a derivative of Hv-NCC-1 was identified in which the formyl group attached to pyrrole B is absent (Losey and Engel, 2001). , 1991). Recently this concept has 18 SENESCENCE PROCESSES IN PLANTS received new support by the group of Shioi who identified chl-derived monopyrroles during leaf senescence (Suzuki and Shioi, 1999). 1 Chlorophyll cycle Chl b is a component of antenna complexes of the photosystems and occurs at variable ratios to chl a.

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Annual Plant Reviews Volume 26: Senescence Processes in Plants by Susheng Gan

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