Recent Posts

Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis (Science)

Cell wall remodeling and vesicle trafficking mediate the root clock in Arabidopsis Living organisms use biological clocks that are coordinated by temporal signals (time) and positional cues (space) during growth and development. In plants, the ‘root clock’ is generated by a mechanism involving…

Formation of flavone-based wooly fibres by glandular trichomes of Dionysia tapetodes (bioRxiv)

Many people are familiar with the popular houseplant Cephalocereus senilis, which also known as old man cactus because it is covered with long white hairs that are thought to protect it from frost and UV light. A similar function is described for the wooly fibers that cover the alpine plant Dionysia…

Functionally overlapping but molecularly distinct TGN subdomains of two Epsin-like proteins (PNAS)

The trans-Golgi networks (TGN) is a major protein sorting station involved in trafficking or recycling of endosomal materials. This busiest hub in the cell has at least four important pathways including the anterograde routes of secretory, recycling, vacuolar transport and retrograde endocytic pathways.…

A cis-regulatory atlas in maize at single-cell resolution (bioRxiv)

Cis-regulatory elements (CREs) are DNA sequences found near or within genic regions that drive proper gene expression in time and space. Thus, CREs play essential roles in the diversification of spatially distinct cell-types with specialized function in multicellular organisms. To identify CREs underlying…

Go polar: Regulation of Rho GTPases by ARO proteins (Nature Plants)

Polar cell growth is a key feature in plant organs like root hairs, trichomes and pollen tubes. Kulich and co-workers have identified novel regulatory elements governing the polar growth of root hairs and trichomes in Arabidopsis thaliana. Studying a group of proteins named ARMADILLO REPEAT ONLY (ARO),…

Opposing, polarity-driven nuclear migrations underpin asymmetric divisions in stomatal patterning (Curr. Biol.)

Asymmetric cell divisions (ACDs) are often used by organisms to generate different cell sizes, each adopting a different cell fate. In plants, stomatal development provides an example of an ACD-derived patterning mechanism. Several proteins are known to be implicated in ACDs, like BREAKING OF ASYMMETRY…

SNAP ‘n’ Track: Protein localization using fluorescent dyes (Plant Cell)

Proteins’ sub-cellular localizations provide a wealth of information regarding their functional attributes. Protein localization in plant cells is usually done through genetically combining fluorescent proteins to the protein-of-interest. Now, Iwatate and colleagues report the successful localization…

PlaCCI (Plant cell cycle indicator); fluorescent sensor for spatiotemporal cell cycle analysis (Nature Plants)

The cell cycle requires a series of transitions from G1 to S, S to G2, G2 to M and M to G1 phases. Determining the cell cycle phase is critical for understanding the molecular events specific to a given stage of cell cycle. However, markers for identifying these cell cycle transitions in plants are not…

Review: Biomolecular condensates in photosynthesis and metabolism ($) (Curr. Opin. Plant Biol.)

Biomolecular condensates are membraneless organelles with the capacity to spatially concentrate biomolecules. Liquid-liquid phase separation (LLPS) is one mechanism of condensate formation in which demixing of macromolecules leads to separation into dense and light phases. Photosynthetic organisms like…