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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Seasonal forests are characterized by seasonal dynamics that influence the growth and ecophysiology of forest species. Erythroxylum pauferrense is an understory species endemic to the Northeastern region of Brazil, with a distribution limited to Paraíba, Brazil. In this study, how the physiological characteristics of E. pauferrense vary in response to seasonal changes in an open ombrophilous forest of the Brazilian Atlantic Forest was investigated. Precipitation, air and soil temperature, and leaf area index were monitored and correlated with gas exchange, chlorophyll fluorescence, chlorophyll indices, and leaf morphofunctional attributes. The results show that E. pauferrense exhibits ecophysiological plasticity, adjusting its photosynthesis rates, stomatal conductance, and water use efficiency according to seasonal changes. During the rainy season, photosynthesis and stomatal conductance were higher than in the dry season, indicating more excellent photosynthetic activity due to increased water availability. Water use efficiency varied, with more efficient use in the dry season, which is crucial for survival in conditions of low water availability. Thus, this study contributes to understanding the ecology of endemic understory species in seasonal tropical forests, such as Erythroxylum pauferrense.

Details

Title
Seasonal Ecophysiological Dynamics of Erythroxylum pauferrense in an Open Ombrophilous Forest of the Brazilian Atlantic Forest
Author
João Everthon da Silva Ribeiro 1   VIAFID ORCID Logo  ; Ester dos Santos Coêlho 1   VIAFID ORCID Logo  ; Francisco Romário Andrade Figueiredo 1   VIAFID ORCID Logo  ; Pereira, Walter Esfrain 2   VIAFID ORCID Logo  ; Dias, Thiago Jardelino 2   VIAFID ORCID Logo  ; Marlenildo Ferreira Melo 1 ; da Silveira, Lindomar Maria 1   VIAFID ORCID Logo  ; Aurélio Paes Barros Júnior 1   VIAFID ORCID Logo  ; Manoel Bandeira de Albuquerque 2 

 Postgraduate Program in Phytotechnics, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, Brazil; [email protected] (E.d.S.C.); [email protected] (F.R.A.F.); [email protected] (M.F.M.); [email protected] (L.M.d.S.); [email protected] (A.P.B.J.) 
 Postgraduate Program in Agronomy, Universidade Federal da Paraíba, Areia 58397-000, Brazil; [email protected] (W.E.P.); [email protected] (T.J.D.); [email protected] (M.B.d.A.) 
First page
128
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
22251154
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3110431260
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.