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A lipid-anchored NAC transcription factor translocates into nucleus to activate GlyI gene expression involved in drought stress

Regulation of transcription factor (TF) localization is a common strategy for gene expression regulation. Wang et al. identified  a membrane-anchored TF, MfNACsa, as contributing to drought stress responses. In unstressed plants, MfNACsa is anchored to the plasma membrane through covalent-attachment of a palmitic group (a fatty acid) to a cysteine (known as S-palmitoylation). Upon drought stress, […]

Emission of volatile organic compounds from petunia flowers is facilitated by an ABC transporter

Plants can emit up to 10% of the carbon they fix as volatile organic compounds (VOCs), which function in abiotic stress tolerance, pollinator attraction, signalling between plants, and defending against pathogens and herbivores. It has been an open question whether these small molecules pass directly and passively through the plasma membrane or whether their transport […]

Photosynthesis-dependent H2O2 transfer from chloroplasts to nuclei provides a high-light signalling mechanism

Because most chloroplast proteins are encoded in the nuclear genome, there must be ways for signals from the chloroplast to inform the nucleus and direct changes in gene expression. Several candidates have been proposed as chloroplast-to-nucleus (retrograde) signals. Using hydrogen-peroxide (H2O2) specific sensors, Exposito-Rodriguez et al. show that upon illumination with high light, hydrogen peroxide […]

Expression of Kranz-anatomy candidate genes from maize in rice

Most plants that use the more efficient C4 form of photosynthesis also exhibit Kranz anatomy, in which the PEPC and Rubisco carboxylases reside in distinct cells. Key genes that control the development of Kranz anatomy have been hard to find. In this report, Wang et al. analysed the effects of constitutively expressing in rice candidate […]

420 Articles | Page 2 of 70