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

An Overview About Ultrastructure of Kranz Anatomy in Cyperaceae (Poales)

Full text
Author(s):
Shirley Martins [1] ; Silvia Rodrigues Machado [2] ; Vera Lucia Scatena [3]
Total Authors: 3
Affiliation:
[1] Universidade Estadual do Oeste do Paraná. Centro de Ciências Biológicas e da Saúde - Brasil
[2] Universidade Estadual Paulista. Inst. Biociências. Depto. Botânica - Brasil
[3] Universidade Estadual Paulista. Inst. Biociências. Depto. Botânica - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Rodriguésia; v. 66, n. 2, p. 633-643, 2015-06-00.
Abstract

Abstract An overview about ultrastructure of Kranz anatomy in Cyperaceae (Poales) - The ultrastructure of the Kranz tissues in Cyperaceae species with the four types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) was studied and compared with species already described in the literature, with the goal verifying the occurrence of patterns for the Kranz types. In addition, chloroplasts and mitochondria were quantified for the first time for all Kranz types. The chloroplast’s structure is similar in the mesophyll cells (PCA) in the four Kranz types, but differs in some features in the bundle sheath cells (PCR). In the chlorocyperoid and rhynchosporoid types the bundle sheath cells (PCR) present centrifugal or scattered chloroplasts with convoluted or parallel thylakoids. In the eleocharoid types, the chloroplasts are scattered with parallel thylakoids. The fimbristyloid type presents centrifugal chloroplasts with convoluted and parallel thylakoids. To eleocharoid and fimbristyloid types and to Cyperus and Pycreus (chlorocyperoid) was observed pattern in the chloroplasts position. In most of the studied species the number of mitochondria in the bundle sheath cells (PCR) is significantly higher than in the mesophyll cells (PCA) and this result diverges from the results found in previous studies. (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