The Annals of Botany Office is based at the University of Oxford.
Seeds of the grass species rice (Oryza sativa) serve as the most widely consumed staple food especially in Asia. One of its major threats is Xanthomonas oryzae pv. oryzae (Xoo), the causal agent of rice bacterial blight, which could severely reduce the production. Ding et al. identify a rice mutant of OsPELO, whose counterparts in […] More
Shade-intolerant plants need to be able to grow shoots rapidly. New research shows that the shoots are successful because of preparations below ground. More
Annals of Botany will have a Special Issue on Vulnerability to, and management of, plant communities in the face of increased flood risk. The increased likelihood of extreme weather events globally poses a major flood risk. As a result, many coastal and riparian habitats, and the plant communities they contain are now valued for their […] More
In the marginal regions of Europe, grassland-based livestock systems are dominated by grass monocultures receiving relatively high levels of fertilizer. Would the inclusion of clovers improve their productivity and sustainability? Helgadóttir et al. grew monocultures and mixtures of two grass and two clover species under different N-fertilizer levels in extreme growing conditions for five years. […] More
More intense droughts under climate change threaten species resilience. Hydraulic strategies determine drought survival in woody species but are hardly explored in herbaceous species. Volaire et al. investigated the intraspecific variability of hydraulic and morphological traits as indicators of dehydration tolerance in a perennial grass, cocksfoot (Dactylis glomerata), which has a large biogeographical distribution in […] More
In natural hybrid zones, traits often show clines, gradual variation across a gradient reflecting a balance between natural selection and gene flow. Changes over time in average values for traits, and especially the shapes of their clines, are rarely investigated in plants but could result from evolution in an unstable hybrid zone. Differences in clines […] More
Turgor-driven plant cell growth depends on cell wall structure and mechanics. Strengthening of cell walls on the basis of an association and interaction with silicon (Si) could lead to improved nutrient uptake and optimized growth and metabolism in rice (Oryza sativa). However, the structural basis and physiological mechanisms of nutrient uptake and metabolism optimization under […] More
Palm seeds are interesting models for studying seed reserve mobilization at the tissue level due to the abundance and complexity of reserves stored in their living endosperm cells and the development of a highly specialized haustorium. Dias et al. studied structural and physiological aspects of the initial phases of reserve mobilization in seeds of a […] More
Flower opening in barley (Hordeum vulgare) is induced by the swelling of the lodicule, a trait under the suppressor protein CLY1 encoded by the cleistogamy1 (cly1). Anwar et al. show a small RNA miR172a was the most abundant among three miR172 isomers, and sequence polymorphism at the miR172a target site within cly1 was relevant to […] More
The brassinosteroids hormones are involved in plant development and plant–environment interactions. In this work, Castorina et al. performed a detailed analysis of lilliputian1-1 (lil1-1), a mutant impaired in the last steps of the brassinosteroid pathway. Lack of brassinosteroid active molecules causes a drastic reduction in seedling elongation, affects root gravitropic curvature and alters cell density […] More
Photosynthesis is the process that fuels a plant. It sets the energy budget for the organism. It’s no surprise it’s a well-studied process, tet the most commonly measured photosynthesis parameters are made at ‘steady state’ meaning that new photosynthetic traits could remain undiscovered. The ‘dynamic’ changes in photosynthesis (i.e. the kinetics of the various reactions […] More
Clonal reproduction in polyploids is expected to exceed that in diploids, due to either the immediate direct effects of whole-genome duplication (WGD) or selection during establishment. The timing of polyploidy effects on clonality are largely unknown despite its hypothesized influence on polyploid success. Van Drunen and Husband tested the direction and timing of divergence in […] More
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