Begonia
Mostrando 13-19 de 19 artigos, teses e dissertações.
-
13. Notas nomenclaturais em Begonia L. (Begoniaceae)
Como parte dos estudos taxonômicos no gênero Begonia, são propostos neste trabalho 31 sinônimos novos, designados 13 lectótipos e oito táxons considerados de identidade duvidosa. Oito nomes não validamente publicados foram incluídos na sinonímia de Begonia fischeri Schrank, e procedeu-se à correção da citação de um material-tipo (B. raulinii Br
Brazilian Journal of Botany. Publicado em: 2005-09
-
14. Metabolic Conversion of l-Ascorbic Acid to Oxalic Acid in Oxalate-accumulating Plants 1
l-Ascorbic acid-1-14C and its oxidation product, dehydro-l-ascorbic acid, produced labeled oxalic acid in oxalate-accumulating plants such as spinach seedlings (Spinacia oleracea) and the detached leaves of woodsorrel (Oxalis stricta and O. oregana), shamrock (Oxalis adenopylla), and begonia (Begonia evansiana). In O. oregana, conversion occurred equally wel
-
15. DIFFERENTIAL STAINING OF SPECIALIZED CELLS IN BEGONIA WITH INDICATORS
-
16. Regulation of the Onset of Dormancy in Tubers of Begonia evansiana1
-
17. Effects of Oxygen and Respiratory Inhibitors on Induction and Release of Dormancy in Aerial Tubers of Begonia evansiana
Effects of O2 and some respiratory inhibitors on the induction and release of bud dormancy were examined with the aerial tubers of different ages of Begonia evansiana Andr. Oxygen was needed not only for tuber sprouting but also during the chilling process at 2 to 5 C to break tuber dormancy. If the mature tubers were exposed to blue light during the chillin
-
18. Presence and Possible Mode of Action of a Proteinaceous Gonadotropin-like Growth Regulating Factor in Plant Systems 1
Antiserum to human chorionic gonadotropin (HCG) caused marked inhibition of adventitious rooting of Begonia semperflorens and Chrysanthemum morifolium stem cuttings. Immuno-absorption of crude protein extract from chrysanthemum foliage through a column of polymerized and unsolubilized HCG antibodies resulted in a significant reduction in adventitious root pr
-
19. Elevation of superoxide dismutase in Halobacterium halobium by heat shock.
Exposure of Halobacterium halobium to 50 degrees C for 2.5 h in an aerobic environment resulted in a greater than twofold increase in the activity of the manganese-containing superoxide dismutase. Nondenaturing polyacrylamide gels stained for enzymatic activity did not reveal any additional isozymes of superoxide dismutase induced by the heat shock. The maxi