Movimiento foliar en Larrea tridentata (Sessé y Moc. ex DC.) Cov. en relación con la sequía y la edad de la hoja

Authors

  • Pedro Luis Valverde Departamento de Biología, División CBS, Universidad Autónoma Metropolitana-Iztapalapa
  • Santiago Arizaga Centro de Ecología, Universidad Nacional Autónoma de México
  • Exequiel Ezcurra Centro de Ecología, Universidad Nacional Autónoma de México

DOI:

https://doi.org/10.21829/abm21.1993.664

Abstract

The creosote bush (Larrea tridentata) is a common desert perennial shrub with bifoliate, amphistomatic, divaricate leaves. The leaves can vertically close their folioles and vary their profile with respect to direct solar radiation. A greenhouse experiment was done to evaluate (a) the amount of foliole movement present in creosote saplings and (b) the influence of drought and leaf age on their movement. In the greenhouse, foliole aperture varied significantly with the water status of soil, the hour of the day and the age of the leaf. Folioles opened in the early morning and closed in the late afternoon. Stressed plants showed foliole apertures significantly lower than those of non-stressed plants. Folioles from young leaves were significantly more closed than those from mature or old leaves.

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References

Ashby, E. 1932. Transpiratory organs of Larrea tridentata and their ecological significance. Ecology 13: 182-188. DOI: https://doi.org/10.2307/1931068

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Ezcurra, E., S. Arizaga, P. L. Valverde, C. Mourelle y A. Flores-Martínez. 1992. Foliole movement and canopy architecture of Larrea tridentata (DC.) Cov. in Mexican deserts. Oecologia (Berl.) 92(1): 83-89. DOI: https://doi.org/10.1007/BF00317266

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Published

1993-01-01

How to Cite

Valverde, P. L., Arizaga, S., & Ezcurra, E. (1993). Movimiento foliar en Larrea tridentata (Sessé y Moc. ex DC.) Cov. en relación con la sequía y la edad de la hoja. Acta Botanica Mexicana, (21), 15–21. https://doi.org/10.21829/abm21.1993.664
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No. 21 (1993)

Section

Research article

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