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
annals-of-botany
Light and competition fail to explain seedling coexistence
The coexistence of forest tree species has often been linked to differences in their response to light availability during the regeneration stage. Van Couwenberghe et al.
annals-of-botany
Gibberellin mediates tension wood formation
Results suggest that gibberellin is important for the development of gelatinous fibres, and therefore in gravitropism.
annals-of-botany
Nectary evolution in Disa orchids
Independent nectary evolution of orchid genus Disa has involved both repeated recapitulation of secretory epidermis, and innovation of stomatal nectaries.
annals-of-botany
Where do olives come from?
An analysis of patterns of genetic differentiation finds evidence of reciprocal gene exchanges between populations of Mediterranean and Saharan olives.
annals-of-botany
Climate and capture mechanism in pitcher plants
The influence of climate on the mechanisms employed by Nepenthes in prey capture and retention.
annals-of-botany
Timetable for allopolyploidy in flowering plants (Viewpoint)
This is the first study to propose a general temporal framework for strict allopolyploidy.