Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Pollen Morphology of Convolvulaceae From Serra Dos Carajás, Southeastern Amazonia

Luiza Araújo Romeiro
* ,
Edilson Freitas da Silva
ORCID logo ,
Liziane Vilela Vasconcelos
ORCID logo ,
Karen da Silva Lopes
ORCID logo ,
Camila Fernandes Barra
,
Wilson Filgueira Batista Junior
,
Léa Maria Medeiros Carreira
,
Flávia Cristina Araújo Lucas
,
José Tasso Felix Guimarães
* ORCID logo
Version 1 : Received: 12 May 2023 / Approved: 16 May 2023 / Online: 16 May 2023 (07:24:00 CEST)

A peer-reviewed article of this Preprint also exists.

Romeiro, L. de A.; da Silva, E.F.; Vasconcelos, L.V.; Lopes, K. da S.; Carreira, L.M.M.; Guimarães, J.T.F. Pollen Morphology of Convolvulaceae from Southeastern Amazonian Cangas and Its Relevance for Interaction Networks and Paleoenvironmental Studies. Plants 2023, 12, 2256, doi:10.3390/plants12122256. Romeiro, L. de A.; da Silva, E.F.; Vasconcelos, L.V.; Lopes, K. da S.; Carreira, L.M.M.; Guimarães, J.T.F. Pollen Morphology of Convolvulaceae from Southeastern Amazonian Cangas and Its Relevance for Interaction Networks and Paleoenvironmental Studies. Plants 2023, 12, 2256, doi:10.3390/plants12122256.

Abstract

Canga vegetation has high ecological importance in the Serra dos Carajás, southeastern Amazonia, but it coexists with the potential threat of large-scale iron ore mining. Considering Convolvulaceae, this canga environment has only 17 species, and 15 of these species had their pollen grains described in detail in this present work, aiming to contribute to the taxonomic knowledge of critically endangered plants, including Ipomoea cavalcantei. Pollen grains were examined by light and scanning electron microscopy, and the morphological parameters obtained were statistically analyzed using principal component analysis. Therefore, Aniseia cernua was described for the first time in the literature. In general, the echinae morphology were the main differentiating character among the Ipomoea species and was the basis for the proposed pollen key. The family Convolvulaceae in Carajás is eurypalynous, and the genus Ipomoea may be classified as stenopalynous. The set of morphological characters statically treated and correlated was effective for the separation of Ipomoea.

Keywords

Palynology; Taxonomy; Pollen morphology; Convolvulaceae; Carajás.

Subject

Biology and Life Sciences, Plant Sciences

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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