Entries by Kaushal Kumar Bhati

Nitrogen actively controls phosphate starvation response in plants (Plant Cell) ($)

Phosphate and nitrogen are two essential macronutrients for growth of plants. The homeostasis and sensing pathways for these two macronutrients have been investigated extensively, but independently. Recently, -omics approaches have enabled finding interlinks and cross talks between two or more macronutrients. The components for phosphate starvation response (PSR; PHR1, SPX1, IPS2 and PHO2) and nitrogen […]

Rapid evolution of protein diversity by de novo origination in Oryza (Nature Ecol Evol)

The de-novo origin of new protein-coding genes from non-coding regions of plant genomes is a contributor to protein diversity, although it has been difficult to quantify to what extent this process occurs. High quality reference genome maps, deep transcriptome and targeted proteome sequencing are requisite for discovery of de novo genes. Using genome and transcriptome […]

Constitutive signaling activity of a receptor-associated protein links fertilization with embryonic patterning in Arabidopsis thaliana ($) (PNAS)

The apical and basal identity of a growing embryo is determined by an asymmetrical division of the zygote in flowering plants. The MAPKK kinase YODA (YDA) is important for zygotic elongation and embryonic polarity. During embryo development, YDA is activated by the membrane associated pseudo-kinase SHORT SUSPENSOR (SSP), which belongs to BRASSINOSTEROID SIGNALING KINASE (BSK) […]

The phosphorylation and protein interaction landscape of the plant TOR kinase (Nature Plants) ($)

The TOR (target of rapamycin) is a conserved regulator of cellular homeostasis and energy status in several clades of life. TOR signaling is well studied in animals while precise regulation and downstream targets of TOR kinase are not very well explored in plants. Some well-studied TOR kinase targets in plants includes S6 kinase, TAP46 and […]

Ubiquitin-dependent chloroplast-associated protein degradation in plants (Science) ($)

The fidelity of the chloroplast proteome is a major factor in the functional efficiency of photosynthesis. A RING-type ubiquitin E3 ligase, SP1, is an outer envelope localized protein in the chloroplast which ubiquitinates the protein import translocases (TOC proteins) and thus target them to 26S mediated degradation. In recent work, Ling et al. identified a […]

Opinion. Feeling the heat: Searching for plant thermosensors (Trends Plant Sci)

How does a plant sense the elevation in atmospheric temperature? What are the missing links betweena rise in atmospheric temperature, its sensing, and responses triggered? Vu et al. discuss how conformational and structural changes of DNA, RNA and proteins could be the sensors to temperature change. For example the temperature rise above 22OC indirectly induce […]