DOI: 10.1016/j.marpolbul.2018.03.058
Scopus记录号: 2-s2.0-85045051385
论文题名: Short-term cadmium exposure induces gas exchanges, morphological and ultrastructural disturbances in mangrove Avicennia schaueriana young plants
作者: Garcia J.S. ; Dalmolin Â.C. ; Cortez P.A. ; Barbeira P.S. ; Mangabeira P.A.O. ; França M.G.C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 131 起始页码: 122
结束页码: 129
语种: 英语
英文关键词: Acantathaceae
; Mangrove
; Photosynthesis
; Trace metals
; Ultrastructure
Scopus关键词: Biodiversity
; Cadmium
; Cytology
; Gas plants
; Metabolism
; Photosynthesis
; Seed
; Trace elements
; Acantathaceae
; Controlled conditions
; Mangrove
; Metal contamination
; Natural conditions
; Trace metal
; Ultrastructure
; Vegetative organs
; Plants (botany)
; cadmium
; lignin
; cadmium
; gas exchange
; mangrove
; morphology
; photosynthesis
; physical disturbance
; pollution exposure
; trace metal
; ultrastructure
; Article
; Avicennia
; Avicennia schaueriana
; biodiversity
; cell damage
; chloroplast
; concentration (parameters)
; controlled study
; endoderm
; environmental exposure
; gas exchange
; morphological trait
; nonhuman
; plant leaf
; plant nutrient
; plant root
; plant stem
; plant structures
; seedling
; thylakoid membrane
; xylem cell
; Biodiversity
; Cadmium
; Cytology
; Metabolism
; Photosynthesis
; Avicennia
; Rhizophoraceae
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Mangroves have been subject to more metal contamination, including cadmium (Cd). This study evaluated if a relatively short Cd exposure may induce metabolic, morphological and ultrastructural cell disturbance in Avicennia schaueriana. Cd induced evident constraints to seedlings since there was reduction in leaf gas exchanges and the plants did not survive for more than 10 days at a higher Cd exposure in controlled conditions. The highest Cd accumulation was observed in roots and gradually less in stem and leaves. Cadmium induced lignin deposition was observed in xylem cells of all vegetative organs. Intense sclerification in xylem cells, endoderm and change in the hypoderm organization were also detected. Cadmium clearly induced chloroplast deformities with ruptures of its membranes, thylakoids and core and provoked cytoplasm disorganization. These metal constraints under natural conditions for long term can lead to the accumulation of cellular and metabolic damages and jeopardize seedlings establishment and local biodiversity. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88243
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Rodovia Jorge Amado, Km 16, Brazil; Instituto de Ciências Exatas, Departamento de Química, Universidade Federal de Minas Gerais, Av. Antônio Carlos, Brazil; Instituto de Ciências Biológicas, Departamento de Botânica, Universidade Federal de Minas Gerais, 6627 Av. Antônio Carlos, Brazil
Recommended Citation:
Garcia J.S.,Dalmolin Â.C.,Cortez P.A.,et al. Short-term cadmium exposure induces gas exchanges, morphological and ultrastructural disturbances in mangrove Avicennia schaueriana young plants[J]. Marine Pollution Bulletin,2018-01-01,131