SPATIAL DISTRIBUTION OF LEAF GALLS AND ARCHITECTURE EVALUATION OF THE HOST PLANT Ouratea spectabilis (MART. EX ENGL.) ENGL. (OCHNACEAE)

Authors

  • Francisco Guttemberg dos Santos Oliveira
  • Claudia Scareli-Santos Universidade Federal do Tocantins

DOI:

https://doi.org/10.20873/uftsupl2018-5785

Abstract

This study aimed at analyzing the interaction between the host plant Ouratea spectabilis and the leaf galls inducer regarding ecological aspects. In order to evaluate leaf galls distribution and the changes in the host architecture, samples were taken from 10 individuals infested with galls during the flowering (dry season/September) and fruiting period (rainy season/December), located at UFT, Araguaína campus, from which were collected 50 branches, measured and divided into three equidistant regions, called basal, median and apical, followed by counting the total number of healthy and infested leaves by their regions, flowers and fruits. 10 infested leaves were removed and scanned for later counting of the galls for each individual and region of the branches. There was a higher occurrence of gall in the region between veins (p> 0.05) in all three categories. In both seasons, the size of the branches correlated weakly and negatively with the infestation (r2 = -0.1433). There was a correlation between the number of inflorescences and size of the branches, (r2 = 0.183). The fruit abundance correlated positively with the size of the branches (r2 = 0.3005). Galls infestation did not significantly alter inflorescence and fruit numbers.

Author Biography

Claudia Scareli-Santos, Universidade Federal do Tocantins

Curso de Biologia àreas: Botânica e Ecologia

Published

2020-03-26

How to Cite

Oliveira, F. G. dos S., & Scareli-Santos, C. (2020). SPATIAL DISTRIBUTION OF LEAF GALLS AND ARCHITECTURE EVALUATION OF THE HOST PLANT Ouratea spectabilis (MART. EX ENGL.) ENGL. (OCHNACEAE). DESAFIOS - Revista Interdisciplinar Da Universidade Federal Do Tocantins, 5(Especial), 214–223. https://doi.org/10.20873/uftsupl2018-5785

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