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In plant mitochondria, NADH dehydrogenase (complex I) and the cytochrome bc1 complex (complex III) form a I + III2 supercomplex, which is thought to stabilize the structure of the component complexes. Protein–protein interactions at three sites on the membrane arm of complex I partly resemble those in mammals, but also have plant-specific features.
A comprehensive proteomics-based interactome map of adaptor protein complexes in Arabidopsis identifies P34 as a key regulator of the stability of clathrin-associated adaptors and their related trafficking routes.
Analysis of cambial development in the tree Populus trichocarpa reveals how a zinc-finger transcription factor, Populus trichocarpa VASCULAR CAMBIUM-SPECIFIC 2 (PtrVCS2), controls the rate of cell proliferation by changing the dynamics of histone acetylation at the Populus trichocarpa WUSCHEL-RELATED HOMEOBOX4a (PtrWOX4a) promoter.
The lack of haploid male fertility is a bottleneck to improve the efficiency in doubled haploid technology for accelerating crop breeding. This study shows that mutations in the parallel spindle genes are sufficient to restore haploid male fertility in Arabidopsis.
This study revealed a regulatory system in which transcription factor and histone acetylation functions are coordinated for maintaining normal stem vascular cambium development for wood formation in Populus trichocarpa.
This study reported the structures of plant DNA demethylase ROS1 in complexes with substrate DNA, which revealed insights into the molecular basis of the plant-specific ROS1-mediated DNA demethylation.
Expression of Medicago truncatula symbiosis-specific nodule-specific cysteine-rich (NCR) genes in soybean—which lacks NCR—is induced by conserved transcription factors in the symbiotic nodule cells and provokes features of terminal differentiation of endosymbiotic Rhizobium bacteroids.
Jasmonic acid (JA) is involved in defence against herbivores. Once the plant is attacked, the memory of aggression can linger for weeks, including in newly formed leaves. The authors investigate what the induced changes in the transcriptome and methylome are, and uncouple short- and long-term effects of JA.