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Publikationen - Molekulare Signalverarbeitung

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Bücher und Buchkapitel

Dorka, R.; Miersch, O.; Hause, B.; Weik, P.; Wasternack, C.; Chronobiologische Phänomene und Jasmonatgehalt bei Viscum album L. 49-66, (2009)

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Bücher und Buchkapitel

Wasternack, C.; Jasmonates—Biosynthesis and Role in Stress Responses and Developmental Processes 143-155, (2004) DOI: 10.1016/B978-012520915-1/50012-6

This chapter presents jasmonates and their related compounds and discusses jasmonate-induced alteration of gene expression. Jasmonates exerts two different changes in gene expression— decrease in the expression of nuclear- and chloroplast-encoded genes and increase in the expression of specific genes. Jasmonates are shown to alter sink-source relationships such as JA promotes formation of the N-rich vegetative storage proteins—VSPα and VSPβ—of soybean, including reallocation in pod filling. In addition to such nutrient reallocation to other parts of the plant, jasmonates cause decreases in photosynthesis and chlorophyll content, the most significant manifestations of senescence in leaves. The rise of endogenous jasmonates upon stress or exogenous treatment with jasmonates correlates in time with the expression of various genes. The promotion of senescence by jasmonates is counteracted by cytokinins. The capacity of jasmonates to down regulate photosynthetic genes may also be one determinant in the onset of senescence.
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