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Flow cytometric analysis of nuclear DNA contents of somatic tissues of cabbage ( Brassica oleracea L.) has revealed extensive endopolyploidization, resulting in tissues that comprise mixtures of cells with different DNA contents, ranging from 2C to 16C. Patterns of endopolyploidy are specific to...
The influence of bracteoles on the germination response of a salt marsh annual, Atriplex prostrata , and a salt desert perennial, A. griffithii , was determined. Attached bracteoles did not inhibit germination of A. prostrata but completely inhibited germination of A. griffithii seeds....
DNA amount is a widely used biodiversity character. As known DNA C-values represent the global angiosperm flora poorly, better coverage of taxonomic groups is needed, including at the familial level. A workshop, sponsored by Annals of Botany , was held at the Royal Botanic Gardens, Kew in 1997....
In a series of dawn-to-dusk studies, we examined the nature and accessibility of nectar rewards for pollinating insects by monitoring insect visits and the secretion rate and standing crop of nectar in the British native plant species Salvia pratensis , Stachys palustris , S. officinalis ,...
Morphological characteristics were studied in two groups of closely related taxa of section Supinae , Linaria depauperata and L. supina , from eastern Spain. Vegetative, floral and seed characteristics were of little use in distinguishing between these taxa as the ranges for all the taxa studied...
Phylogenetic analyses of nucleotide and amino acid sequences of the chloroplast protein coding gene rps4 were performed for 225 species of mosses, representing 84% of families recognized by Vitt (1984. In: Schuster RM, ed. New manual of bryology , vol 2 . Nichinan: Hattori Botanical Laboratory),...
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