GLABRA3-mediated trichome branching requires transcriptional repression of MICROTUBULE-DESTABILIZING PROTEIN25.

Microtubules play pivotal roles in establishing trichome branching patterns, which is a model system for studying cell-shape control in Arabidopsis (Arabidopsis thaliana). However, the signaling pathway that regulates microtubule reorganization during trichome branching remains poorly understood. In this study, we report that MICROTUBULE-DESTABILIZING PROTEIN25 (MDP25) is involved in GLABRA3 (GL3)-mediated trichome branching by regulating microtubule stability.

The genetic variation in drought resistance in eighteen perennial ryegrass varieties and the underlying adaptation mechanisms.

Background: Drought resistance is a complex characteristic closely related to the severity and duration of stress. Perennial ryegrass (Lolium perenne L.) has no distinct drought tolerance but often encounters drought stress seasonally.

Transcriptome and functional analyses reveal from key regulator in drought resistances.

L. is an important legume forage grass with strong drought resistant, which could be utilized as an important gene pool in molecular breed of forage grass. In this study, seedlings were treated with 400 mM mannitol to simulate drought stress, and the morphological and physiological changes were investigated, as well as the transcriptome changes of seedlings at different treatment time points (0 h, 2 h, 6 h, 12 h, 24 h, 36 h and 48 h).

The transcription factor ZmMYB69 represses lignin biosynthesis by activating ZmMYB31/42 expression in maize.

A MYB family transcription factor ZmMYB69 is a transcriptional activator at the upper level of ZmMYB31 and ZmMYB42 in the hierarchical network that controls lignin biosynthesis in maize.