annals-of-botany
Germination and seed bank dynamics of dimorphic seeds
Heteromorphic seeds can show differences in dormancy and germination, but it is not known how this affects maintenance and regeneration of populations. Cao et al. bury
annals-of-botany
Gene-dosage effects of WEE1 in arabidopsis hypocotyls
Over-expression of the cell cycle checkpoint gene, WEE1, may repress growth and development. Spadafora et al. culture explants of Arabidopsis thaliana from an over-expressing
annals-of-botany
DNA content for 407 plant species from the USA
The genome sizes of plants represent a key character often associated with other traits. Bai et al. use flow cytometry to provide prime C-values for
annals-of-botany
Pollination biology of a Chloraeinae orchid
The pollination biology of very few Chloraeinae orchids has been studied to date, and little is known about pollinator behaviour. Sanguinetti et al. study the floral
annals-of-botany
Interspecific chromosome exchanges in polyploid Musa
Edible bananas originated mainly from two wild species, Musa acuminata and M. balbisiana, and recombinations between chromosomes occur in polyploid varieties. Jeridi et al. compare homoeologous
annals-of-botany
Prediction of seed germination time for wild grapevine
Thermal thresholds for seed dormancy release and germination are important tools for predicting germination timing. Orrù et al. study germination in seeds of Vitis vinifera subsp.
annals-of-botany
Interphase-mitotic cell nuclei in Allium
Prolonged treatment of Allium cepa root meristems with changing concentrations of hydroxyurea (HU) results in either premature chromosome condensation or cell nuclei with an uncommon form
annals-of-botany
Constitutive α-amylase activity in dry grass seeds
α -Amylase in grass caryopses (seeds) is usually expressed upon commencement of germination and is rarely seen in dry, mature seeds. However, Goggin and Powles show
annals-of-botany
Origins of determinate growth habit in Phaseolus
One of the traits that appeared during domestication of common bean, Phaseolus vulgaris, is determinacy, in which stems end with a terminal inflorescence. Kwak et al.
annals-of-botany
Characterizing sub-optimal clover nodule phenotypes
Little is known regarding why some strains of rhizobia fail to form successful symbiotic associations with leguminous crop plants. Melino et al. compare incompatible (no N2-
annals-of-botany
Fruit load modulates flowering-related gene expression
Previous research has demonstrated that fruit load acts as a strong inhibitor of flowering in many fruit-tree species, including Citrus. Muñoz-Fambuena et al. analyse
annals-of-botany
Phylogenetic significance of the carpophore in Apiaceae
Structural variation in carpophores, the ‘stalks’ of the typical schizocarps of Apiaceae, is not well documented. Liu et al. study 92 species from 43 genera representing