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In response to environmental stresses, or during development, plant cells will produce lipids that will act as intracellular or intercellular mediators. Glycerophospholipid and/or sphingolipid second messengers resulting from the action of lipid metabolizing enzymes (e.g. lipid-kinases or lipases) are commonly found within cells. The importance of such mediating lipids in plants has become increasingly apparent. Responses to biotic and abiotic stresses, and to plant hormones, all appear to involve and require lipid signals. Likewise, developmental processes, in particular polarized growth, seem also to involve signalling lipids. Amongst these lipids, phosphatidic acid (PA) has received the m...
Wally du Temple, who was a social worker during the Sixties Scoop of aboriginal children, presents a convincing case for the need of reconciliation with First Nations and also with Mother Earth.
Bei vielen physiologischen und Entwicklungsprozessen sowie bei Stressreaktionen spielen Hormonsignale, die Pflanzen aussenden, eine große Rolle. Mit Aufkommen der neuen post-genomischen Molekulartechnologien sind auch unsere Möglichkeiten, die Wirkung von Hormonsignalen auf die Genexpression und adaptive Prozesse zu verstehen, heute einzigartig. Wenn wir die molekularen Grundlagen dieser Prozesse entschlüsseln, ergeben sich für die Entwicklung neuer Pflanzenbiotechnologien und verbesserter Varianten von Kulturpflanzen große Chancen. Die Themen dieses Buches legen den Schwerpunkt auf die Genomik und funktionale Aspekte der Genomik. Damit lassen sich globale Veränderungen und Veränderun...
Although the role of salicylic acid (SA) in plant physiological processes has been widely studied for a long time, many open questions remain several fields. The importance of SA synthesis is illustrated by the four review papers published in this Special Issue that represent a wide range of approaches, indicating that a growing body of evidence needs to be summarized in a thought-provoking manner. The investigations presented in the six original studies extend upon the understanding of the involvement of SA in anthracnose infection and light-dependent cold acclimation, highlighting the use of SA mutant Arabidopsis plants. The studies also focused on the application of novel SA analogs or SA in combination with Rhizobacteria inoculation. We hope that the four reviews and six studies provide a deeper understanding of the role of SA and its complex tasks, as well as a new direction for research to address gaps and open questions, including both at the metabolite and gene expression levels, in the use of agriculturally important crop or mutant model plants, and in both basic research and practical applications.