BACKGROUND AND AIMS The cell cycle is controlled by cyclin-dependent kinases (CDKs), and CDK inhibitors are major regulators of their activities. The ICK/KRP family of CDK inhibitors has been reported in several plants, with seven members in arabidopsis; however, the phylogenetic relationship among members in different species is unknown. Also, there is a need to understand how these genes and ...

The biosynthesis of certain benzenoid compounds found in plants, such as the hydroxycinnamic acids, lignin, flavonoids, and coumarins, has recently been actively investigated. In his review (1) on the biosynthesis of these secondary plant products, Neish points out that the results of tracer experiments show the hydroxycinnamic acids to be important precursors in the formation of lignin and oth...

ABSTRACf Quantitative and qualitative features of wood and stem anatomy are presented for 44 collections of 16 genera and 35 species ofConvolvulaceae. Markedly furrowed xylem characterizes the genera of tribe Cresseae. Successive cambia occur in 11 of the genera studied. Large patches of axial parenchyma occur in many of these; only in one species was interxylary phloem (formed internally by th...

Phosphate homeostasis was studied in a monocotyledonous model plant through the characterization of the PHO1 gene family in rice (Oryza sativa). Bioinformatics and phylogenetic analysis showed that the rice genome has three PHO1 homologs, which cluster with the Arabidopsis (Arabidopsis thaliana) AtPHO1 and AtPHO1;H1, the only two genes known to be involved in root-to-shoot transfer of phosphate...

The flora of vascular plants in the city Abakan (Republic Khakassia, Russia) is represented by 459 taxa belonging to 69 families and 325 genera. Angiosperms are predominant higher 451 species (98.3% entire flora), including monocotyledons (104 species, 22.7%) dicotyledons (347 75.6%). According these indicators, this belongs temperate floras Holarctic. presence 24 single-species related observe...