Showing papers in "Annals of Botany in 2013"

TL;DR: Important new components of jasmonate signalling including its receptor were identified, providing deeper insight into the role ofJASMONATE signalling pathways in stress responses and development.

TL;DR: In this article, a hypothetical ideotype is presented to optimize water and N acquisition by maize root systems, based on the coincidence of root foraging and resource availability in time and space.

TL;DR: In this article, a major breakthrough in crop breeding for salinity tolerance was proposed, where stress tolerance genes and mechanisms were identified in extremophiles and then introduced into traditional crops, given the limited range of genetic diversity in this trait within traditional crops.

TL;DR: Improved understanding of the molecular mechanism of BNF outside the legume-rhizobium symbiosis could have important agronomic implications and enable the use of N-fertilizers to be reduced or even avoided.

TL;DR: This paper describes how plants adjust their root architecture to low-P conditions through inhibition of primary root growth, promotion of lateralroot growth, enhancement of root hair development and cluster root formation, which all promote P acquisition by plants.

TL;DR: The auxin pathway constitutes an essential component of the plant's biotic and abiotic stress tolerance mechanisms and further understanding of the specific roles that auxin plays in environmental adaptation can ultimately lead to the development of crops better adapted to stressful environments.

TL;DR: How land plants and their roots evolved is examined, how the ecology of roots and their rhizospheres contributes to the acquisition of soil resources is described, and the influence of plant roots on biogeochemical cycles are discussed.

TL;DR: In this paper, the roles of the known plant hormones and signalling compounds in mycorrhizal colonization of pea roots were examined, and the role of DELLA proteins and brassinosteroids was examined.

TL;DR: N-source preference is much more complex a biological phenomenon than is often assumed, and general models predicting how it will influence ecological processes will need to be much more sophisticated than those that have been so far developed.

TL;DR: Overall, the results suggest that cavitation resistance is a causal factor of tree mortality under extreme drought conditions.

TL;DR: Evidence is presented to substantiate the claim that inadvertent selenocysteine replacement probably impairs or misfolds proteins, which supports the malformed selenoprotein hypothesis and deciphering whether the extent of selenium toxicity in plants is imparted by seleniproteins or oxidative stress could be helpful in the development of crops with fortified levels of seenium.

TL;DR: Phylogenetic analyses strongly support the repeated gain and loss of EFNs across plant clades, especially in more derived dicot families, and suggest that EFNs are found in a minimum of 457 independent lineages.

TL;DR: The analyses revealed relationships between the species and genome groups and showed a generally high level of intraspecific genetic diversity, which is suggested to be linked to the peculiar reproductive biology of Arachis.

TL;DR: Nuclear phylogenetic analysis revealed that Citrus reticulata and Fortunella form a cluster that is differentiated from the clade that includes three other basic taxa of cultivated citrus, which confirms the taxonomic subdivision between the subgenera Metacitrus and Archicitrus.

TL;DR: In this paper, a dualism in rhizosphere properties is proposed for efficient utilization of scarce resources and drought tolerance, which may be a strategy for plants to control which part of the root system will have a facilitated access to water and which roots will be disconnected from the soil.

TL;DR: Over-expressing Ta-PHR1-A1 in wheat upregulated a subset of phosphate starvation response genes, stimulated lateral branching and improved phosphorus uptake when the plants were grown in soil and in nutrient solution.

TL;DR: This review discusses root traits that have been linked to P and Zn uptake in rice, including traits that increase mobilization of P/Zn from soils, increase the volume of soil explored by roots or root surface area to recapture solubilized nutrients, and whole-plant traits that affect root growth and nutrient capture.

TL;DR: The seedling screen was fast, repeatable and reliable for selecting lines with greater total root length in the young vegetative phase in the field, and reflected factors not captured in the screen such as time, soil properties, climate variation and plant phenology.

TL;DR: This review presents an update of the current methods for ethylene monitoring in plants and focuses on the three most-used methods - gas chromatography detection, electrochemical sensing and optical detection - and compares them in terms of sensitivity, selectivity, time response and price.

TL;DR: In ARs formed in planta and TCLs, the QC is established in a similar way, and auxin transport and biosynthesis are involved through cytokinin tuning.

TL;DR: The understanding of the roles EFNs play in plant biology is being revolutionized with the use of new tools from developmental biology and genomics, new modes of analysis allowing hypothesis-testing in large-scale phylogenetic frameworks, and new levels of inquiry extending to community-scale interaction networks.

TL;DR: The presence of the three different chloroplast membranes inside vacuolar accretions that constitute the typical form of tannin storage in vascular plants was established in fresh tissues as well as in purified organelles, using several independent methods.

TL;DR: The importance of regulating nitrification as a strategy to minimize N leakage and to improve N-use efficiency (NUE) in agricultural systems is highlighted and the current status of understanding of the BNI function is reviewed.

TL;DR: A cost-benefit analysis of root traits suggests that root hairs have the greatest potential for P acquisition relative to their cost of production, and indicates that the greatest gains in P-uptake efficiency are likely to be made through increased length and longevity of root hairs rather than by increasing their density.

TL;DR: The available literature characterizing apomixis in Paspalum spp.

TL;DR: It is essential to address the effects of not only individual factors, but their interactions, together with land-use history, on heathland development and conservation in order to predict habitat response to future scenarios.

TL;DR: The findings suggest that the length of the growing season and the resulting amount of growth could respond differently to changes in environmental conditions.

TL;DR: In this paper, the root respiration was correlated with living cortical area (LCA; transversal root cortical area minus aerenchyma area and intercellular air space).

TL;DR: The results suggest that the warming response of plant phenology is larger in earlier than later flowering species in temperate grassland systems, and the effects of warming and N addition on plant phenological times are independent of each other.

TL;DR: Increased HvAACT1 expression in both cereal species was associated with increased citrate efflux from root apices and enhanced Al(3+) tolerance, thus demonstrating that biotechnology can complement traditional breeding practices to increase the Al( 3+) tolerance of important crop plants.