Distribution of homobaric and heterobaric leafed species in the Brazilian Cerrado and seasonal semideciduous forests
| Autor: | Stefany Cristina de Melo Silva, Amanda Cristina Esteves Amaro, Valdemir Garcia Ferreira, Tatiane Maria Rodrigues, Silvia Rodrigues Machado, Katiane Reis Mendes |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Plant growth form Ecology Leaf type Leaf anatomy Air humidity Plant Science Stratification (vegetation) Interspecific competition Standard methods Biology 010603 evolutionary biology 01 natural sciences Leaf thickness Distribution pattern Bundle sheath extension Botany Savanna Plant species Plant habit Ecology Evolution Behavior and Systematics Sensu stricto 010606 plant biology & botany |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2018-12-11T17:07:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-11-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Plant species can be classified into heterobaric and homobaric, depending on whether their leaves present bundle sheath extensions (BSEs) (heterobaric) or not (homobaric). Incidences of the two leaf types seem to be related to growth environment and the light stratification. The Brazilian Cerrado and seasonal semideciduous forests are contrasting environments mainly with regard to irradiance and air humidity. However, studies comparing the distributions of homobaric and heterobaric species in these vegetation types are lacking. We investigate the presence/absence of leaf BSEs across diverse habits (herbs, shrubs and trees) in a seasonal semideciduous forest, cerrado sensu stricto (open physiognomy) and cerradão (forest physiognomy) to evaluate the influence of plant habit and growth environment on the distribution of homobaric and heterobaric species. Leaves from 131 species in 54 angiosperm families were analysed using standard methods of light microscopy. The distribution of the different leaf types in each environment was analysed using the χ2 test and Fisher's exact test (P |
| Databáze: | OpenAIRE |
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