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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal de Santa Maria
2017
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| Online Access: | https://www.redalyc.org/articulo.oa?id=467553545002 https://www.redalyc.org/journal/4675/467553545002/ https://www.redalyc.org/journal/4675/467553545002/html/ https://www.redalyc.org/journal/4675/467553545002/467553545002.epub https://www.redalyc.org/journal/4675/467553545002/movil |
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Table of Contents:
- Morphoanatomical adjustments of Tibouchina clavata (Melastomataceae) in ombrophilous forest and restinga forest João Carlos Ferreira Melo Jr Maick William Amorim Igor Abba Arriola Jessica Stefani Dirksen Fernando Andreacci Estudios Ambientales rain forest functional traits structural adjustments biodiversity conservation Structural adjustments in plants may occur in response to environmental constraints, which may influence plant growth and development, as well as patterns of species coexistence. Of wide geographical distribution in the Atlantic Forest, Tibouchina. clavata presents structural variations in the ecosystems in which it occurs. The present study aimed to evaluate the adaptive responses of Tibouchina clavata (Melastomataceae) occurring in two forest formations governed by different environmental conditions. Ten leaves of ten individuals were collected in each formation, for a total of n = 100 per area as were stem samples, for measuring architectural, morphological and foliar traits. Environmental variables considered included edaphic nutrition, water availability and light radiation. The phenotypic plasticity index was calculated for each trait. Morphoanatomical traits varied among populations with greater emphasis on plant height and stem diameter, in contrast to the lower variation observed for leaf traits. Foliar morphoanatomy met the expected pattern for plants that grow under conditions of greater luminosity. Greater development of the aerial system (height and diameter of the stem) was observed in the plants of the ombrophilous forest, indicating that this growth is related to the soil fertility and water availability. The phenotypic plasticity index indicates low plasticity for Tibouchina clavata in the geographic distribution studied. 2017 artículo científico 0100-8307 https://www.redalyc.org/articulo.oa?id=467553545002 https://www.redalyc.org/journal/4675/467553545002/ https://www.redalyc.org/journal/4675/467553545002/html/ https://www.redalyc.org/journal/4675/467553545002/467553545002.epub https://www.redalyc.org/journal/4675/467553545002/movil en http://www.redalyc.org/revista.oa?id=4675 Ciência e Natura application/pdf Universidade Federal de Santa Maria Ciência e Natura (Brasil) Num.3 Vol.39