DNA repair is of course a crucial process, and many DNA repair enzymes are conserved across all domains of life. In humans, deficiency in the RecQ family of DNA helicase repair enzymes leads to premature aging and a predisposition to cancer. Previous studies have identified the RecQ family in Arabidopsis and rice. Wiedemann et al. […]
Three letters to Plant Physiology address the role of vesicles in auxin transport, discussing the evidence and conclusions from a recently published paper from three perspectives. Does auxin accumulate in endocytic vesicles? If so, how, and why? The Letters address both the methods used and the intrepetation of the study’s results. This link takes you […]
Rising atmospheric CO2 levels are causing wide-ranging climate abnormalities. Beerling et al. discuss ways to capture CO2 in soils through augmenting soils with crushed basalt, or silicate-rich wastes such as sugarcane mill ash. As the added rock weathers, it reacts with gaseous CO2 to release cations (Ca2+ and Mg2+) and alkalinizing bicarbonate ions (HCO3–), which […]
Put 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 generally suppressed and photosynthetic capacity retained, which is in […]
Lichen are quite special, as they don’t exist independently of their partnership. Lichen are composed of a fungal partner and a photosynthetic partner (the algal or cyanobacterial photobiont), and these partnerships have evolved independently many times. Spribille provides an overview of some of the many questions that remain unanswered in the study of lichen and […]
Letters: Auxin and vesicle traffic Three letters to Plant Physiology address the role of vesicles in auxin transport, discussing the evidence and conclusions from a recently published paper from three perspectives. Does auxin accumulate in endocytic vesicles? If so, how, and why? The Letters address both the methods used and the intrepetation of the study’s […]
By 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 as stomatal conductance, chlorophyll content, light reactions, carboxylation events, carbohydrate […]
Scientists find proteins important for plant development, DNA repair and gene targeting Freiburg, Mar 08, 2018 All living cells have invented mechanisms to protect their DNA against breaks during duplication and against damage by UV-light or chemicals. A team of biologists led by Prof. Dr. Ralf Reski from the Faculty of Biology of the University […]
Three years ago, biotechnologists demonstrated in field trials that they could increase the productivity of maize by introducing a rice gene into the plant that regulated the accumulation of sucrose in kernels and led to more kernels per maize plant. They knew that the rice gene affected the performance of a natural chemical in maize, […]