منابع مشابه
Rethinking Guard Cell Metabolism1[OPEN]
Stomata control gaseous fluxes between the internal leaf air spaces and the external atmosphere and, therefore, play a pivotal role in regulating CO2 uptake for photosynthesis as well as water loss through transpiration. Guard cells, which flank the stomata, undergo adjustments in volume, resulting in changes in pore aperture. Stomatal opening is mediated by the complex regulation of ion transp...
متن کاملMesophyll photosynthesis and guard cell metabolism impacts on stomatal behaviour.
Stomata control gaseous fluxes between the internal leaf air spaces and the external atmosphere. Guard cells determine stomatal aperture and must operate to ensure an appropriate balance between CO2 uptake for photosynthesis (A) and water loss, and ultimately plant water use efficiency (WUE). A strong correlation between A and stomatal conductance (gs ) is well documented and often observed, bu...
متن کاملBeyond insulin: rethinking cellular metabolism
The latest cancer therapeutics are almost all inhibitors of oncogenes or their downstream mediators. With the exception of imatinib, most such drugs have been disappointing in the clinic. In contrast, existing successful cancer drugs have a therapeutic index because they render the consequences of oncogene activation selectively toxic to the cancer cell. A renewed focus on this type of approach...
متن کاملGuard Cell Signal Transduction.
Guard cells surround stomatal pores in the epidermis of plant leaves and stems. Stomatal pore opening is essential for CO2 influx into leaves for photosynthetic carbon fixation. In exchange, plants lose over 95% of their water via transpiration to the atmosphere. Signal transduction mechanisms in guard cells integrate hormonal stimuli, light signals, water status, CO2, temperature, and other en...
متن کاملGuard Cell Signaling
The plant hormone abscisic acid (ABA) regulates the aperture of the stomatal pore. The recent identification of new intermediates involved in ABA signaling suggests that this complex pathway is organized as a module-based network.
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2016
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.16.00767