Abstract Eleocharis (Cyperaceae) includes more than 300 species of perennial or annual herbs, frequently found on poorly drained soils. The are morphologicaly similar, and the taxonomy is difficult because their vegetative reproductive structures very reduced. Previous study stem architecture in subgenus Limnochloa showed that anatomical features help interpretation evolution, ecological aspect...

Initial conceptualisation about the nature of vegetative state (VS) assumed at least temporary loss of the entire cortical functioning. Since a broad range of stimulus-related cortical activations was demonstrated in VS patients, this simplified idea is not tenable any longer, but no alternative concept emerges instead. Two recent hypotheses, empirically testable and well grounded, could fill t...

Let E be an elliptic curve over Q with complex multiplication by the ring of integers of an imaginary quadratic eld. Let be the Hecke character associated to E by the theory of complex multiplication. Let be the complex conjugate character of. For a pair of integers k and j, deene the Hecke character ' = '(k; j) = k j. Let p be a prime where E has good, ordinary reduction. Let p be a xed prime ...

In S. pombe, about 5% of genes are meiosis-specific and accumulate little or no mRNA during vegetative growth. Here we use Affymetrix tiling arrays to characterize transcripts in vegetative and meiotic cells. In vegetative cells, many meiotic genes, especially those induced in mid-meiosis, have abundant antisense transcripts. Disruption of the antisense transcription of three of these mid-meiot...

Abstract Dioecious plants exhibit sexual dimorphism in both features (reproductive organs) and secondary sex characteristics (vegetative traits). Sexual differences traits, including morphological, physiological ecological characters, have been commonly associated with trade-offs between the cost of reproduction other plant functions. Such may be modified by environmental stressors, although th...

There is scarce information available about how peasants recognize Agave landraces. This study aims to identify the agave species and landraces used for “pulque” production analyze their morphological variability in a Nahualt community, San Pedro Tlacuapan (SPT), Tlaxcala, Mexico. To this end, we traditional knowledge conventional statistical methods. Semi-structured interviews were administere...