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Nutrient sensing and signalling in plants: Potassium and phosphorus
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UNSPECIFIED (2006) Nutrient sensing and signalling in plants: Potassium and phosphorus. ADVANCES IN BOTANICAL RESEARCH, VOL 43, 43 . pp. 209-257. doi:10.1016/S0065-2296(05)43005-0
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Official URL: http://dx.doi.org/10.1016/S0065-2296(05)43005-0
Abstract
Potassium and phosphorus are important macronutrients for crops but are often deficient in the field. Very little is known about how plants sense fluctuations in K and P and how information about K and P availability is integrated at the whole plant level into physiological and metabolic adaptations. This chapter reviews recent advances in discovering molecular responses of plants to K and P deficiency by microarray experiments. These studies provide us not only with a comprehensive picture of adaptive mechanisms, but also with a large number of transcriptional markers that can be used to identify upstream components of K and P signalling pathways. On the basis of the available information we discuss putative receptors and signals involved in the sensing and integration of K and P status both at the cellular and at the whole plant level. These involve membrane potential, voltage-dependent ion channels, intracellular Ca and pH, and transcription factors, as well as hormones and metabolites for systemic signalling. Genetic screens of reporter lines for transcriptional markers and metabolome analysis of K- and P-deficient plants are likely to further advance our knowledge in this area in the near future.
Item Type: | Journal Item | ||||
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Subjects: | S Agriculture > SB Plant culture | ||||
Series Name: | ADVANCES IN BOTANICAL RESEARCH INCORPORATING ADVANCES IN PLANT PATHOLOGY | ||||
Journal or Publication Title: | ADVANCES IN BOTANICAL RESEARCH, VOL 43 | ||||
Publisher: | ACADEMIC PRESS LTD | ||||
ISSN: | 0065-2296 | ||||
Official Date: | 2006 | ||||
Dates: |
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Volume: | 43 | ||||
Number of Pages: | 49 | ||||
Page Range: | pp. 209-257 | ||||
DOI: | 10.1016/S0065-2296(05)43005-0 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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