Empirical evidence of color changing in galls: under the light of light

Bomfim, Phabliny Martins Silva

Please use this identifier to cite or link to this item: https://repositorio.ufu.br/handle/123456789/20183

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DC Field	Value	Language
dc.creator	Bomfim, Phabliny Martins Silva	-
dc.date.accessioned	2018-01-12T18:16:41Z	-
dc.date.available	2018-01-12T18:16:41Z	-
dc.date.issued	2017-12-15	-
dc.identifier.citation	BOMFIM, Phabliny Martins Silva. Empirical evidence of color changing in galls: under the light of light. 2017. 25 f. Trabalho de Conclusão de Curso (Graduação em Ciências Biológicas) – Universidade Federal de Uberlândia, Uberlândia, 2017.	pt_BR
dc.identifier.uri	https://repositorio.ufu.br/handle/123456789/20183	-
dc.language	eng	pt_BR
dc.publisher	Universidade Federal de Uberlândia	pt_BR
dc.subject	Gall	pt_BR
dc.subject	Coloration	pt_BR
dc.subject	Anthocyanin	pt_BR
dc.subject	Light	pt_BR
dc.subject	Photosynthesis	pt_BR
dc.title	Empirical evidence of color changing in galls: under the light of light	pt_BR
dc.type	Trabalho de Conclusão de Curso	pt_BR
dc.contributor.advisor-co1	Cardoso, João Custódio Fernandes	-
dc.contributor.advisor1	Oliveira, Denis Coelho de	-
dc.description.degreename	Trabalho de Conclusão de Curso (Graduação)	pt_BR
dc.description.resumo	Several studies have hypothesized about coloration in galls, including change in gall metabolism, galling–natural enemies interactions, gall maturation stage, influence of galling exogenous cytokinins and aposematism. However, none of these were confirmed so far. On the other hand, the vibrant colors of some galls may be explained simply by the effect of light exposure. This may lead to anthocyanin (Anth) accumulation, functioning as a mechanism of defense against the effects of sun light. Nevertheless, no studies provided systematic quantification/observation of this phenomenon. Herein, we ask whether gall tissues accumulate Anth like a mechanism of defense against the effects of sun light and which consequences may occur in photosynthetic rate. We demonstrate that adaxial galls induced by Cecidomyiidae (Diptera) in Qualea parviflora (Vochysiaceae) are exposed to higher light incidence, presenting more Anth accumulation and therefore red coloration. On the other hand, the abaxial galls receive less light compared with adaxial ones, with less Anth and green coloration. In addition, in galls from angled leaves, the greater the angulation of the leaf, the higher the non-equality between Anth on sun and shade sides of galls. This explains the intermediate color pattern found in galls from high angulated leaves, presenting green and red, respectively in shade and sun sides. We did not find any differences according to the concentration of photosynthetic pigments. However, concerning photosynthesis parameters, (Fm’-F’)/Fm’ and Fv/Fm were higher in bellow galls, indicating a better photosynthetic performance compared with above galls. In the other hand, due to high light exposure, the NPQ and Rfd were higher in above galls, indicating that the Anth functions as a photoprotective pigment, maintaining the high tissue vitality in galls exposed to the stress condition. We demonstrate empirical evidence that the variation of light regimes may create differential Anth accumulation and influence coloration in galls.	pt_BR
dc.publisher.country	Brasil	pt_BR
dc.publisher.course	Ciências Biológicas	pt_BR
dc.sizeorduration	25	pt_BR
dc.subject.cnpq	CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA	pt_BR
dc.orcid.putcode	75832663	-
Appears in Collections:	TCC - Ciências Biológicas (Uberlândia)

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