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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Occurrence and evolutionary inferences about Kranz anatomy in Cyperaceae (Poales)

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Author(s):
Martins, Shirley [1] ; Alves, Marccus [2] ; Scatena, Vera L. [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual Oeste Parana, Ctr Ciencias Biol & Saude, Lab Bot, UNIOESTE, Rua Univ, 2069, Jardim Univ, BR-85819110 Cascavel, PR - Brazil
[2] Univ Fed Pernambuco, UFPE, Ctr Ciencias Biol, Dept Bot, Lab Morfotaxon Vegetal, BR-50670901 Recife, PE - Brazil
[3] Univ Estadual Paulista, UNESP, Inst Biociencias, Dept Bot, Lab Anat Vegetal, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Anais da Academia Brasileira de Ciências; v. 87, n. 4, p. 2177-2188, DEC 2015.
Web of Science Citations: 1
Abstract

ABSTRACT Cyperaceae is an angiosperm family with the greatest diversity of species with Kranz anatomy. Four different types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) have been described for this angiosperm family, and the occurrence and structural characteristics of these types are important to trace evolutionary hypotheses. The purpose of this study was to examine the available data on Cyperaceae Kranz anatomy, emphasizing taxonomy, geographic distribution, habitat and anatomy, to infer the potential origin of the Kranz anatomy in this family. The results showed that the four types of Kranz anatomy (associated with C4 photosynthesis) in Cyperaceae emerged numerous times in unrelated phylogenetic groups. However, the convergence of these anatomical types, except rhynchosporoid, was observed in certain groups. Thus, the diverse origin of these species might result from different environmental pressures that promote photorespiration. Greater variation in occurrence of Kranz anatomy and anatomical types was observed inEleocharis, whose emergence of the C4 pathway was recent compared with other genera in the family, and the species of this genus are located in aquatic environments. (AU)

FAPESP's process: 08/09380-2 - Ontogeny and ultrastructure of Kranz anatomy in Brazilian species of Cyperaceae: subsidies to taxonomy and phylogeny
Grantee:Shirley Martins Silva
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 11/18275-0 - Anatomy of species of Poales (monocotyledons): taxonomic implications
Grantee:Vera Lucia Scatena
Support Opportunities: Regular Research Grants