Chromium (VI) induces toxicity at different photosynthetic levels in pea

Plant Physiology and Biochemistry : PPB
E RodriguezMaria Celeste Dias

Abstract

In order to comprehensively characterize the effects of Cr (VI) on the photosynthetic performance of Pisum sativum, plants irrigated with Cr solutions (ranging from 20 to 2000 mg l(-1)) were evaluated using the following classical endpoints: gas exchange parameters, chlorophyll a (Chl a) fluorescence, leaf pigments, Rubisco activity, soluble sugars and starch content. Flow cytometry (FCM) was applied in an innovative approach to evaluate the morphological and fluorescence emission status of chloroplasts from plants exposed to Cr (VI). The parameters related to gas exchange, net CO(2) assimilation rate (A) and Rubisco activity were severally affected by Cr exposure, in some cases even at the lowest dosage used. While all biomarkers used to measure Chl a fluorescence indicated a decrease in fluorescence at the maximum dosage, pigment contents significantly increased in response to Cr (VI). The morphology of chloroplasts also was altered by Cr (VI) exposure, as a volume decrease was observed. Soluble sugars and starch showed an overall tendency to increase in Cr (VI) exposed plants, but sucrose and glucose decreased highly when exposed to 2000 mg l(-1). In conclusion, our results indicate that Cr (VI) affects photosynthesis at sev...Continue Reading

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Citations

Oct 10, 2013·Biological Trace Element Research·Priyanka MahajanRavinder K Kohli
Jan 21, 2014·Plant Physiology and Biochemistry : PPB·Maria Celeste DiasConceição Santos
Nov 24, 2012·Plant Physiology and Biochemistry : PPB·E RodriguezConceição Santos
Sep 24, 2015·Environmental Science and Pollution Research International·Jing MaZhiping Gao
Apr 9, 2015·Environmental Science and Pollution Research International·Sehar AfshanGhulam Hasan Abbasi
Aug 6, 2014·Environmental Science and Pollution Research International·Eleazar RodriguezMaria Celeste Dias
May 1, 2016·Environmental Science and Pollution Research International·Maria Celeste DiasConceição Santos
Oct 21, 2016·Plant Physiology and Biochemistry : PPB·Gausiya BashriSheo Mohan Prasad
Feb 24, 2017·Ecotoxicology and Environmental Safety·Maria Angélica da Conceição GomesAngela Pierre Vitória
Apr 12, 2017·Genetics and Molecular Biology·Lauro Bücker-NetoMarcia Margis-Pinheiro
Feb 6, 2018·Environmental Science and Pollution Research International·Arosha MaqboolLonghua Wu
Jun 1, 2019·International Journal of Phytoremediation·Mosammad Rima KhatunA K M Nazmul Huda
Jul 2, 2018·Environmental Science and Pollution Research International·Efi LevizouVasileios Antoniadis
Feb 28, 2019·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Amit PratushZhong Hu
Jul 13, 2018·International Journal of Environmental Research and Public Health·Lianmei NiuJinyin Lv
Jan 15, 2021·Environmental Science and Pollution Research International·Amina RedhaMohammad Afzal
Jan 26, 2021·Archives of Microbiology·Ivan Arroyo-HerreraMaría Soledad Vásquez-Murrieta
Feb 20, 2021·Journal of Environmental Management·Shiv PrasadJaved Alam
Sep 25, 2020·Plant Physiology and Biochemistry : PPB·Bishwajit Kumar Kushwaha, Vijay Pratap Singh
Jul 19, 2020·Journal of Biotechnology·Asma A Al-HuqailManzer H Siddiqui
Sep 5, 2014·Environmental Science & Technology·Ana Elena Pradas del RealDavid H McNear
Sep 30, 2021·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·Elwira SliwinskaDavid W Galbraith
Nov 8, 2021·The Science of the Total Environment·Muhammad Aqeel KamranBaoliang Chen

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