Drugs Triggering Oil Accumulation in a Diatom
Plant Physiology, Plant Physiology: On The InsideOils composed of triacylglycerols (TAGs) have a broad range of applications, ranging from foods to biofuels. Microalgae are promising feedstocks for the production of (TAGs) but obtaining high yields of TAGs is challenging. Conte et al. (10.1104/pp.17.01804) have developed a phenotypic assay for the…
Review: A newly proposed plastid: the xyloplast (Curr. Opin. Plant Biol.) ($)
Plant Science Research WeeklyIn its simplest definition, a plastid is an organelle that manufactures and stores essential chemical compounds used by its host cell. Numerous plastids exist beyond the familiar chloroplast. Chromoplasts synthesise and store carotenoid pigments, and provide their hosts with district yellow, orange or…
Leaf Metabolism in Response to Dark
Plant Physiology, Plant Physiology: On The Inside, ResearchOne of the more prevalent methods used to initiate plant senescence under laboratory conditions is to grow plants in prolonged dark conditions. The course of “dark-induced senescence” depends upon whether individual leaves on the plant or the entire plant is darkened: an individually darkened leaf…
Commentary: The discovery of nickel hyperaccumulation in the New Caledonian tree Pycnandra acuminata 40 years on: an introduction to a Virtual Issue (OA)
Plant Science Research WeeklyA Commentary by Jaffé et al. introduces a New Phytologist Virtual Issue on the curious and fascinating plants that hyperaccumulate metals. These diverse species have shed light on metal transporter proteins and mechanisms of metal tolerance, on the ecological function of metal hyperaccumulation (possibly…
Breakthrough Technology: Soft X-ray imaging of cellular carbon and nitrogen distributions in cyanobacteria (Plant Phys)
Plant Science Research WeeklySoft X-ray imaging is a promising new technology that can be used to measure elemental compositions of living cells. By adjusting the energy (wavelength) of the incident X-rays, it is possible to specifically measure C or N, which have different photo-absorption edges. Teramoto et al. demonstrate the…
Update: Phytochrome, Carbon Sensing, Metabolism, and Plant Growth Plasticity
Blog, Plant Physiology, Plant Physiology: UpdatesBy Johanna Krahmer, Ashwin Ganpudi, Ammad Abbas, Andrés Romanowski, and Karen J. Halliday
Plants continuously monitor fluctuations in their environment and actively adjust their metabolism to cope with variations in light and carbon resource availability. However, the links between photoreceptor signaling…
Update: The role of trehalose 6-phosphate in crop yield and resilience
Blog, Plant Physiology, Plant Physiology: UpdatesBy Matthew J. Paul, Asier Gonzalez-Uriarte, Cara A. Griffiths, and Keywan Hassani-Pak
Significant increases in global food security require improving crop yields in favourable and poor conditions alike. However, it is challenging to increase both the crop yield potential and yield resilience simultaneously,…
Darkened leaves use different metabolic strategies for senescence and survival (Plant Physiol.)
Plant Science Research WeeklyPut a plant into full darkness and it will gradually senesce, whereas as individually darkened leaf (IDL) will undergo radid senescence. Law et al. used transcriptomic and metabolomic methods to identify the metabolic responses of plants to these two conditions. In fully darkened plants, metabolism is…
Update: Ethylene exerts species-specific and age-dependent control of photosynthesis
Blog, Plant Physiology, Plant Physiology: UpdatesBy Johan Ceuster and Bram Van de Poel
Abstract
The volatile plant hormone ethylene plays a regulatory role in many developmental processes and in biotic and abiotic stress responses. One of the under-explored actions of ethylene is its regulation of photosynthesis and associated components such…