title: Growth responses and accumulation of soluble sugars in Inga marginata Wild. (Fabaceae) subjected to flooding under contrasting light conditions.
abstract: Flood events in riparian forests of southern Brazil, can be characterized as unpredictable and of low magnitude with an average duration of less than 15 days. Inga marginata is an evergreen tree which grows in Southeast South America on a wide range of environments, including riparian forests. In this paper, the interactive effects of the light environment and soil flooding on morphological parameters of I. marginata were examined. Seedlings were acclimated in two contrasting light conditions: sun or shade for 30 days. Sun and shade plants were subjected to soil flooding for two periods; five or 15 days. After 5 days, the interaction between flooding and light did not affect growth, chlorophyll content and dry mass or the root-shoot ratio. After 15 days, flooded plants from the sunny treatment had a lower shoot dry mass compared to control sun plants and flooded plants from the shaded treatment. Moreover, the higher dry mass observed for shade plants compared to sun plants, following flooding, can also be directly associated with a higher content of soluble sugars. Shade plants of I. marginata showed a greater acclimation to soil waterlogging. This acclimation appears to be associated with a larger accumulation of soluble sugars compared to non-flooded plants. The responses observed on the shade plants appear to be decisive to indicate the use of I. marginata in degraded areas.
authors.affiliation: Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil.
authors.forename: B
authors.initials: B
authors.lastname: Bender
authors.affiliation: Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil.
authors.forename: E S
authors.initials: ES
authors.lastname: Capellesso
authors.affiliation: Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil.
authors.forename: M E
authors.initials: ME
authors.lastname: Lottici
authors.affiliation: Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil.
authors.forename: J
authors.initials: J
authors.lastname: Sentkovski
authors.affiliation: Laboratório de Bioquímica e Biologia Molecular, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil.
authors.forename: A A
authors.initials: AA
authors.lastname: Mielniczki-Pereira
authors.affiliation: Laboratório de Ecofisiologia Vegetal, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 7712, Agronomia, CEP 91540-000, Porto Alegre, RS, Brazil.
authors.forename: L M G
authors.initials: LMG
authors.lastname: Rosa
authors.affiliation: Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil.
authors.forename: T L
authors.initials: TL
authors.lastname: Sausen
mesh_terms: D000064:Acclimatization; D007887:Fabaceae / Q000033:anatomy & histology / Q000254:growth & development / Q000502:physiology*; D055868:Floods; D008027:Light; D036226:Seedlings / Q000033:anatomy & histology / Q000254:growth & development / Q000502:physiology; D012995:Solubility; D000073893:Sugars / Q000378:metabolism
chemical_list: D000073893:Sugars