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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.)

Secretory structures of the Adesmia clade (Leguminosae): Implications for evolutionary adaptation in dry environments

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Author(s):
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Fortuna-Perez, Ana Paula [1] ; Marinho, Cristina Ribeiro [2] ; Vatanparast, Mohammad [3, 4] ; Vargas, Wanderleia de [1] ; Iganci, Joao Ricardo Vieira [5, 6] ; Lewis, Gwilym Peter [7] ; Candido, Elisa Silva [8] ; Moura, Tania Maria de [9, 10] ; Monteir, Thiago Cobra e [1] ; Miotto, Silvia Teresinha Sfoggia [5] ; Teixeira, Simone Padua [11]
Total Authors: 11
Affiliation:
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[1] UNESP, IBB, Dept Bioestat Biol Vegetal Parasitol & Zool, Setor Bot, Caixa Postal 510, BR-18618970 Botucatu, SP - Brazil
[2] CSIC, Real Jardin Bot, Madrid 28014 - Spain
[3] Univ Copenhagen, Dept Geosci & Nat Resource Management, Rolighedsvej 23, DK-1958 Frederiksberg C - Denmark
[4] Smithsonian Inst, NMNH, US Natl Herbarium US, Dept Bot, MRC 166, 10th & Constitut Ave, Washington, DC 20560 - USA
[5] Univ Fed Rio Grande do Sul, Inst Biociencias, Dept Bot, BR-91501970 Porto Alegre, RS - Brazil
[6] Univ Fed Pelotas, IB, Dept Bot, Caixa Postal 354, BR-96010900 Pelotas, RS - Brazil
[7] Royal Bot Gardens, Comparat Plant & Fungal Biol Dept, Richmond TW9 3AE, Surrey - England
[8] Univ Estadual Campinas, Inst Biol, Dept Biol Vegetal, Rua Monteiro Lobato 255, BR-13083862 Campinas, SP - Brazil
[9] Missouri Bot Garden, 4344 Shaw Blvd, St Louis, MO 63110 - USA
[10] IF Goiano, Inst Fed Goiano, Campus Urutai Rod Geraldo Silva Nascimento, Km-2, 5, BR-75790000 Urutai, Go - Brazil
[11] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Av Do Cafe S-N, BR-14040903 Ribeirao Preto, SP - Brazil
Total Affiliations: 11
Document type: Journal article
Source: PERSPECTIVES IN PLANT ECOLOGY EVOLUTION AND SYSTEMATICS; v. 48, FEB 2021.
Web of Science Citations: 2
Abstract

The Dalbergioid Adesmia Glade comprises Adesmia DC., Amicia Kunth, Nissolia Jacq., Poiretia Vent., and Zornia J. F. Gmel., all predominantly South American genera except for Zornia which has a pantmpical distribution. These taxa share a shrubby or herbaceous habit with glands present on some part of the plant (e.g., stems, leaflets). However, the evolutionary relationships of the full range of secretory structures observed in previous studies are not fully understood. Thus, the goal of this study is to characterize and compare the occurrence and morphology of these glands in leaflets of species of the Adesmia clade. In addition, secretory structures were showed in a phylogenetic context in members of the Adesmia clade. The mature subterminal leaflets of 81 taxa, 79 from the Adesmia clade and two species of the Ptemcarpus clade, were sampled from herbaria and living specimens. All genera of the Adesmia clade shared the presence of secretory, mucilaginous idioblasts in the epidermis of their leaflets. Genera of the clade inhabit dry environments, including open areas and highland grasslands (e.g., Savanna, Patagonian steppe, and the Andes). The presence of mucilage in the epidermis of these genera might be an adaptation to reduce water loss through transpiration, providing a hydrophilic interface between the leaflet surface and the environment, protecting plants from intensive radiation. Phenolic idioblasts were found in the mesophyll of Amicia and Zornia. Secretory cavities were observed in Amicia, Poiretia and Zornia. The occurrence of secretory cavities only in these three phylogenetically closely related genera is considered a synapomorphic character as shown by our character reconstruction analysis. The presence of secretory idioblasts is a unifying characteristic of all genera of the Adesmia clade. (AU)

FAPESP's process: 15/13386-0 - TAXONOMIC, PHYLOGENETIC AND BIOGEOGRAPHIC STUDIES IN ERIOSEMA (DC.) DESV. (LEGUMINOSAE, PAPILIONOIDEAE, PHASEOLEAE)
Grantee:Ana Paula Fortuna Perez
Support Opportunities: Regular Research Grants
FAPESP's process: 00/12469-3 - Morphological, anatomical, histochemical, and ultrastructural studies of cerrado plants (sensu lato) of São Paulo State
Grantee:Silvia Rodrigues Machado
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants