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Arbuscular mycorrhizal (AM) fungi play a key role in phosphate (P) uptake of many crop species, but the mechanisms by which P uptake in the AM symbiosis is controlled are only poorly understood. Wang et al. examined the effects of the phosphate acquisition efficiency (PAE) of soybean plants on P uptake and transport via the […] More
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. More
The legume family (Leguminosae) consists of approximately 17 000 species and those used as crops provide protein and carbohydrates for over 300 million people world-wide. O’Rourke et al. review how next-generation sequencing technologies and associated bioinformatic analyses have allowed individual researchers to assemble genomes, identify gene-coding regions and study gene expression patterns. To illustrate the power of […] More
This study’s results suggest the existence of unidentified genes for flowering in soybean. More
![Leaf hydraulic conductance at elevated [CO2] and temperature](https://www.botany.one/wp-content/uploads/2013/10/mct143-snapshot-September-SIZED-354x205.jpg)
Leaf hydraulic properties are strongly linked with transpiration and photosynthesis in many species, but it is not known if gas exchange and hydraulics will have co-ordinated responses to climate change. Locke et al. study soybean (Glycine max) and find that leaf hydraulic conductance (Kleaf) does not change for plants grown at elevated [CO2] or elevated […] More
Reactive oxygen species (ROS), such as hydrogen peroxide (H2O2), can promote seed germination in a number of species but their role in soybean has not been fully determined. Ishibashi et al. use the anti-oxidant N-acetylcysteine to counteract the effects of ROS in germinating seeds of soybean, Glcine max, and study endogenous ethylene content, the number and […] More
Purple acid phosphatases (PAPs) are members of the metallo-phosphoesterase family and have been known to play important roles in P acquisition and recycling in plants. Li et al. identify 35 PAP genes from genomes of soybean, Glycine max, and use quantitative real-time PCR to analyse the expression patterns in response to P deficiency and symbiosis. They […] More
Novel border-like cells in woody plant roots Root border cells play a critical role in root growth and microbial association, although their detachment patterns are divergent among plant species. Endo et al. describe a detailed pattern of synthesis, separation and survival of distinct border-like cells that form a sheath surrounding the root apex of a tree, […] More
Hourglass cells (HGC) are prominent cells in the legume seed coat. Miller et al. (pp. 235–242) document HGC development in soybean, Glycine max, and relate structural changes to expression of an HGC-specific soybean peroxidase (SBP). SBP protein and activity are detectable in HGCs before differentiation is complete; furthermore, activity appears vacuolar, as predicted. These results […] More
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