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.
annals-of-botany
This review explores the poorly understood effects of manganese phytotoxicity on natural ecosystems and community composition.
annals-of-botany
This study explores phloem evolution in the species-rich Bignonieae (Bignoniaceae) tribe.
annals-of-botany
This study finds that DNA methylation and 5-methylcytosine play key roles in determining the ageing and viability of stored recalcitrant seeds.
annals-of-botany
High levels of polymorphism exist within and between sexually reproducing Crocus species except 17 C. sativus accessions, where polymorphisms are absent.