Senescence Processes in Plants (Annual Plant Reviews, Vol 26)
Publisher: Wiley-Blackwell | ISBN: 1405139846 | edition 2007 | PDF | 352 pages | 2,69 mb
Publisher: Wiley-Blackwell | ISBN: 1405139846 | edition 2007 | PDF | 352 pages | 2,69 mb
The scientific and economic significance of plant senescence means that much effort has been made to understand the processes involved and to devise means of manipulating them agriculturally. During the past few years there has been considerable progress in this regard, especially in the molecular, genetic and genomic aspects. Senescence has a tremendous impact on agriculture. For example, leaf senescence limits crop yield and biomass production, and contributes substantially to postharvest loss in vegetable and ornamental crops during transportation, storage and on shelves. In addition, proteins, antioxidants and other nutritional compounds are degraded during senescence. Senescing tissues also become more susceptible to pathogen infection, and some of the pathogens may produce toxins, rendering food unsafe. Mitotic senescence may also determine sizes of leaves, fruits and whole plants.
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