Chloroplasts have evolved from photosynthetic bacteria, and genes necessary for chloroplast function have moved from the chloroplast to the nuclear genome of the host eukaryotic cell.  Proteins encoded by these genes are made in the cytosol and imported into the chloroplast using protein translocases. …

Like plants, algae and cyanobacteria produce a dizzying array of largely unexplored natural products that can be used as medicines, in biotechnology and in agriculture. Luzzatto-Knaan et al. used mass spectrometry (MS) to explore chemical diversity from marine samples collected across space and time.…

Phosphate is both really important (think of its abundance in DNA, RNA, ATP, and membrane lipids), and really difficult to assimilate due to its insolubility and immobility in soil. Phosphate is frequently limiting for growth, meaning that it is widely applied as fertilizer, but global supplies of phosphate…

The mechanism by which auxin alters patters of transcription through TIR1s, ARFs and IAA proteins is well established, but less clear is our understanding of how rapid, non-transcriptional auxin responses occur. APB1 was implicated in non-transcriptional responses, but in the past few years evidence…

Martin et al. have written a must-read review on the evolution of plant mutualistic symbioses and strategies through which hosts and microbes communicate and coordinate their activities. This review also covers the contributions of hormones in the formation of symbiotic tissues, and how the mutualistic…

Review: Enhancing genetic gain in the era of molecular breeding ($) Yield is determined by the crop’s genetic potential and the realization of that potential as affected by agronomic practices and environmental factors. Xu et al. address how yields can be improved through enhancing genetic gain,…

The Science Show on Radio National, Australia, interviewed Robert Furbank, Director of the ARC Centre of Excellence for Translational Photosynthesis, Australian National University, on efforts to engineer C4 photosynthesis into rice. http://www.abc.net.au/radionational/programs/scienceshow/turbo-charging-crops-to-feed-the-billions/8541396

Amesbury et al. examined stratified cores from moss banks across the Antarctic Peninsula (AP) as a paleoclimate archive. They measured moss accumulation rate, growth rate, microbial productivity, and carbon-isotope discrimination (Δ13C, as a proxy for photosynthetic assimilation rate). Their data reveal…