annals-of-botany
Abscisic acid underlies genotypic variation in stomatal responses
Stomata formed at high relative humidity (RH) are less responsive to abscisic acid (ABA), an effect that varies widely between genotypes. Giday et al. study four
annals-of-botany
Corolla morphology and diversification rates in toadflaxes
Results suggest that opposing individual-level/species-level selection pressures have driven evolution of pollinator-restrictive traits in bifid toadflaxes.
annals-of-botany
Stabilization of yield in plant genotype mixtures
Arabidopsis thaliana genotype mixtures under strong competition and abiotic stress achieve more stable seed production through compensatory interactions.
annals-of-botany
Control of quiescent centre formation in adventitious roots
Accumulation of auxin and the expression of the QC marker WOX5 characterize the early derivatives of the AR founder cells both in planta and in explants.
annals-of-botany
Pollen receipt and quality in endemic-rich communities
The magnitude of pollen limitation is highly variable among habitats, species and differing plant communities. Alonso et al. analyse natural variability in pollen receipt and tube
annals-of-botany
Cluster roots, P and growth rate in Lupinus
Some Lupinus species produce cluster roots in response to low plant phosphorus (P) status. Wang et al. measure relative growth rate (RGR) among three lupin species,
annals-of-botany
Regulation of juvenile-to-adult transition in citrus
In citrus the juvenile phase can last 5–20 years depending on the variety, which is a serious constraint for molecular and conventional breeding. Castillo et
annals-of-botany
NnSR1, a non-S-RNase induced by phosphate deficiency
Rojas et al. demonstrate that NnSR1 (Nicotiana non-S-RNase1) is induced in roots of Nicotiana alata subjected to phosphate deprivation.
annals-of-botany
A unifying model for isoprene emission (Research in Context)
Morfopoulos et al. hypothesize that NADPH availability for isoprene biosynthesis depends on the balance of electron supply and Calvin cycle demand.
annals-of-botany
Improving abiotic stress tolerance in crops (Invited Review)
Shabala identifies physiological mechanisms conferring salinity tolerance in halophytes that can be introduced into non-halophyte crop species to improve their performance under saline conditions.
annals-of-botany
Water stress, xylem hydraulic failure and tree death
The results of this study demonstrate that massive cavitation is probably a causal factor for tree mortality under extreme water stress conditions.
annals-of-botany
Trichome evolution in Neotropical lianas
Trichomes are epidermal outgrowths generally associated with protection against desiccation and herbivores. These structures are widely distributed on plant parts but evolutionary studies of trichomes are