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Werner Camargos Antunes
Researcher at Universidade Estadual de Maringá
Publications - 42
Citations - 1215
Werner Camargos Antunes is an academic researcher from Universidade Estadual de Maringá. The author has contributed to research in topics: Photosynthesis & Stomatal conductance. The author has an hindex of 16, co-authored 31 publications receiving 909 citations. Previous affiliations of Werner Camargos Antunes include Universidade Federal de Viçosa & Federal University of Pernambuco.
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Journal ArticleDOI
Allometric models for non-destructive leaf area estimation in coffee (Coffea arabica and Coffea canephora)
TL;DR: It is demonstrated that the currently used allometric models are biased, underestimating the area of a coffee leaf, and a reliable and accurate model using non-destructive measurements of leaf length and width is proposed, irrespective of cultivar and leaf size and shape.
Journal ArticleDOI
Photosynthesis and photoprotection in coffee leaves is affected by nitrogen and light availabilities in winter conditions.
Marcelo Francisco Pompelli,Samuel C. V. Martins,Werner Camargos Antunes,Agnaldo Rodrigues de Melo Chaves,Fábio M. DaMatta +4 more
TL;DR: It is demonstrated that N fertilization could adequately protect the coffee plants against photodamage independently of the anticipated positive effects of N on the photosynthetic capacity.
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In field‐grown coffee trees source–sink manipulation alters photosynthetic rates, independently of carbon metabolism, via alterations in stomatal function
Fábio M. DaMatta,Roberto Lisboa Cunha,Werner Camargos Antunes,Samuel C. V. Martins,Wagner L. Araújo,Alisdair R. Fernie,Gustavo Adolfo Bevitori Kling de Moraes +6 more
TL;DR: It is proposed that the decreased A in defruited coffee trees was independent of carbon metabolism and was rather directly related to a lower CO(2) availability coupled to lower g(s) in trees with a full crop load and half leaf area.
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Allometric models for non-destructive leaf area estimation of Jatropha curcas
Marcelo Francisco Pompelli,Werner Camargos Antunes,Débora Teresa da Rocha Gomes Ferreira,Polyana Geysa da Silva Cavalcante,H.C.L. Wanderley-Filho,Laurício Endres +5 more
TL;DR: In this article, the authors evaluated the current used allometric models and proposed a reliable and accurate model using non-destructive measurements of leaf length (L) and/or width (W) for estimating the leaf area of the Jatropha plant (Jatropha curcas L.).
Journal ArticleDOI
Tobacco guard cells fix CO2 by both Rubisco and PEPcase while sucrose acts as a substrate during light-induced stomatal opening.
Danilo M. Daloso,Werner Camargos Antunes,Werner Camargos Antunes,Daniela Pereira Pinheiro,Jardel P. Waquim,Wagner L. Araújo,Marcelo Ehlers Loureiro,Alisdair R. Fernie,Thomas C. R. Williams,Thomas C. R. Williams +9 more
TL;DR: The results obtained support the hypothesis that sucrose is catabolized within guard cells in order to provide carbon skeletons for organic acid production and provide a qualitative demonstration that CO2 fixation occurs both via ribulose-1,5-biphosphate carboxylase/oxygenase (Rubisco) and phosphoenolpyruvate car boxylase (PEPcase).