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| Espírito-Santo,Mário M; Fernandes,G. Wilson; Allain,Luciana R; Reis,Ticiana R. F. |
| Several ecological, genetic, and environmental factors are known to influence tannin concentration in plant tissues. In this study, the effects of seasonality, water availability, and sex of the plant on tannin concentration in the dioecious shrub Baccharis dracunculifolia were assessed. The effects of water availability on plant shoot growth and its relationship to tannin concentration were also experimentally evaluated. Tannins occurred in B. dracunculifolia from November to May, peaking during the summer (December to March). However, no relationship between tannin concentration, rainfall and temperature was found. No difference in tannin concentration and shoot growth was found between plants in the irrigated and control treatments, this suggesting that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tannins; Baccharis dracunculifolia; Irrigation; Gender; Phenology. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061999000200006 |
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| Santana,Raiana S. M.; Fernandes,G. W.; Ávila,Marcelo P.; Reis,Mariana P.; Araújo,Flávio M. G. de; Salim,Anna C. M.; Oliveira,Guilherme; Chartone-Souza,Edmar; Nascimento,Andréa M. A.. |
| ABSTRACT Although endophytic bacteria impact the health, and ultimately the fitness, of their hosts, our understanding of the diversity of endophytic species remains limited. Here we report on the endophytic microbiota inhabiting the roots, healthy leaves and leaves attacked by a gall-inducing insect of Baccharis dracunculifolia, a species of major economic relevance in South America, using 16S rRNA gene new generation sequencing. Rhodoplanes and Nitrospira were well represented in the communities of roots and leaves; known to be important for nitrogen cycling. The difference in bacterial diversity between healthy and galled leaves was not pronounced. The leaves seem to harbor specialized bacteria with high tolerances to abiotic stresses such as wide... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Baccharis dracunculifolia; Endophytic bacteria; 16S rRNA. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100433 |
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