annals-of-botany
Ortiz-Espín et al. [http://dx.doi.org/10.1093/aob/mcv076] treat over-expressing PsTrxo1 tobacco (Nicotiana tabacum) BY-2 cells with H2O2 and find a significant delay in cell death compared to controls, which may in part be due to a decreased content of endogenous H2O2 in the over-expressing cells, i
![Set-up of split nitrate supply [0·5 mM for low nitrate (LN) and 4·0 mM for high nitrate (HN)] to roots of the maize inbred li](https://storage.ghost.io/c/2e/eb/2eeb2fa9-78ad-4718-9c6b-8b5b05545bf6/content/images/size/w600/botany-one/wp-content/uploads/2015/10/zeamays.jpg)
annals-of-botany
Shoot-borne roots contribute to most of the nutrient uptake throughout the life cycle of maize. Compared with numerous studies with embryonic roots, detailed information on
annals-of-botany
Vishwakarma et al. [http://dx.doi.org/10.1093/aob/mcv122] treat wild-type and aox1a knock-out mutants of Arabidopsis thaliana with antimycin A and find that restriction of the cytochrome c oxidase (COX) pathway in the background of an impaired AOX pathway results in a substantial decrease in respira
annals-of-botany
Ozgur et al. [http://dx.doi.org/10.1093/aob/mcv072] induce the formation of reactive oxygen species (ROS) in chloroplasts, mitochondria and peroxisomes of Arabidopsis thaliana and find that relatively low concentrations of ROS are more effective for induction of the ER stress response, and that mito
annals-of-botany
Kartzinel et al. [http://dx.doi.org/10.1093/aob/mcv117] use genetic markers to determine the extent and overlap of genetically unique kudzu vines (Pueraria montana var. lobata) in multiple patches over 2 years, and find that, contrary to expectations, patches are not dominated by one or a few genets
annals-of-botany
Polyphenol oxidases (PPOs) catalyse the oxidation of monophenols and/or o-diphenols to highly reactive o-quinones, which in turn interact with oxygen and proteins to
annals-of-botany
The phylogeography, the study of the spatial and temporal history of a species, remains largely unclear for plant species in sub-tropical China. Zhang et al. [http://dx.doi.org/10.1093/aob/mcv112] use Tapiscia sinensis, an endemic tree species, as a model to study the phylogeographical history and p
annals-of-botany
Vitamin E helps to control the cellular redox state by reacting with singlet oxygen and preventing the propagation of lipid peroxidation in thylakoid membranes. Both plant
annals-of-botany
Marquez-Garcia et al. study the effects of drought in leaves and nodules of soybean (Glycine max) and find that while the physiological impact is perceived throughout the shoot, stress-induced senescence occurs only in the oldest leaf ranks.
annals-of-botany
High light activates the xanthophyll cycle and increases the production of reactive oxygen species (ROS), such as hydrogen peroxide (H2O2), but the interrelationships between these parameters is poorly understood. Using a natural freshwater community of algae comprising Euglena species, benthic Navi
annals-of-botany
Sandalio and Romero-Puertas review the metabolism of reactive oxygen and nitrogen species (ROS and RNS) in peroxisomes and their contribution to the regulation of plant development and acclimation to stress conditions.
annals-of-botany
de Pinto et al. provide an overview of the redox pathways that contribute to how plants cope with heat stress, focussing on the roles of reactive oxygen species (ROS), redox metabolites and enzymes in the signalling pathways leading to the activation of defence responses.