Towards a more comprehensive understanding of fog foliar water uptake

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dc.creatorDaniela Boanares de Souza
dc.date.accessioned2021-04-16T16:14:12Z
dc.date.accessioned2025-09-09T01:17:44Z
dc.date.issued2020-02-14
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.urihttps://hdl.handle.net/1843/35731
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subject.otherFog
dc.subject.otherLeaf absorption
dc.subject.otherPhotosynthesis
dc.subject.otherCuticle
dc.subject.otherPhenology
dc.subject.otherCell wall
dc.subject.otherThermotolerance
dc.titleTowards a more comprehensive understanding of fog foliar water uptake
dc.typeTese de doutorado
local.contributor.advisor-co1Rosy Mary dos Santos Isaias
local.contributor.advisor1Marcel Giovanni Costa França
local.contributor.advisor1Latteshttp://lattes.cnpq.br/4262094663352985
local.contributor.referee1Lázaro Eustáquio Pereira Peres
local.contributor.referee1Ana Silvia Franco Pinheiro Moreira
local.contributor.referee1Geraldo Luiz Gonçalves Soares
local.contributor.referee1Fernando Henrique Aguiar Vale
local.creator.Latteshttp://lattes.cnpq.br/1532741489430797
local.description.embargo2021-02-14
local.description.resumoFoliar water uptake plays an important role in the physiology of some species, especially those that occur in foggy environments. Fog may be the only source of water for some particular vegetation, especially in the dry season, making the occurence o fog an alternative source of water for the vegetation. Thus, the objective of this thesis was to evaluate ultrastructural, physiological, biochemical and phenological attributes of plant species with different leaf absorption capacities that occur in environments subjected to fog. The chemical composition of the cuticle and the proportion of cell wall components interfere with leaf water uptake. Carbon assimilation is momentarily affected by leaf water absorption, but there has been a decrease in water loss through transpiration. The water status, evaluated through water potential, was benefited by leaf water uptake, demonstrating similar values of water potential in rainy season and in dry season with fog. Foliar water uptake increased thermotolerance, reduced the possibility of photoinhibition and improved antioxidant system, especially in species that absorb a large amount of water. The presence of fog, along with the absorption of water by the leaves, interferes with the phenology of a deciduous plant species, delaying the fall of its leaves. Thus, we conclude that leaf water uptake, especially fog, plays a key role in maintaining various plants in their habitats. The strategy of absorbing more water, although slowly, would be the best strategy for plants in the long term to cope with possible climate changes.
local.publisher.countryBrasil
local.publisher.departmentICB - DEPARTAMENTO DE BOTÂNICA
local.publisher.initialsUFMG
local.publisher.programPrograma de Pós-Graduação em Biologia Vegetal

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