The effect of zinc stress combined with high irradiance stress on membrane damage and antioxidative response in bean seedlings

Michael, Prabhu Inbaraj; Muthuchelian, K.

doi:10.1016/j.envexpbot.2011.05.016

Cited by 95 publications

(36 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An increase in proline content in B. juncea and Cajanus cajan treated with excess Zn 2+ has been reported by Alia et al (1995). Although proline is known as a metal chelator and osmolyte, it has been demonstrated that proline can also alleviate oxidative stress induced by metals via scavenging harmful ROS such as hydroxyl and singlet oxygen (Michael and Krishnaswamy 2011;Matysik et al 2002). In Scenedesmus under Cu and Zn ion metals, it was demonstrated that proline had an antioxidant function via scavenging reactive hydroxyl (Tripathi and Gaur 2004).…”

Section: Discussionmentioning

confidence: 92%

Comparative Effects of ZnO Nanoparticles, ZnO Bulk Particles, and Zn2+ on Brassica napus After Long-Term Exposure: Changes in Growth, Biochemical Compounds, Antioxidant Enzyme Activities, and Zn Bioaccumulation

Kouhi

Lahouti

Ganjeali

et al. 2015

Water Air Soil Pollut

View full text Add to dashboard Cite

A wide variety of application of nanoparticles (NPs) in recent years has raised their possible entrance into the environment so that can affect living components of ecosystems. There is no comparative study on the long-term effects of a wide range of concentrations of NPs, related bulk particles (BPs), and corresponding metal ions on different traits of the plants. The present study has investigated comparative effects of zinc oxide (ZnO) NPs, ZnO BPs, and zinc ions (Zn 2+ ) on rapeseed (Brassica napus L.) after long-term exposure to a wide range of concentrations. The inhibitory effects of treatments on the growth of B. napus were in the order Zn 2+ >> ZnO BPs > ZnO NPs. Results showed the significant changes in the antioxidant enzyme activities, total chlorophyll, soluble proteins, proline, and soluble sugars of the leaves in response to the treatments. However, total phenolic compounds were not affected significantly by any treatment. Overall, in the present study, the toxicity of ZnO NPs on B. napus was lower than those of Zn 2+ or ZnO BPs. Results indicate that adverse effects of ZnO NPs or BPs on B. napus may be due in part to the toxic effects of Zn 2+ ions dissolution, probably induced by root exudates, or due o the physical interaction of ZnO particles with roots and induction of structural and functional disorders.

show abstract

Section: Discussionmentioning

confidence: 92%

Comparative Effects of ZnO Nanoparticles, ZnO Bulk Particles, and Zn2+ on Brassica napus After Long-Term Exposure: Changes in Growth, Biochemical Compounds, Antioxidant Enzyme Activities, and Zn Bioaccumulation

Kouhi

Lahouti

Ganjeali

et al. 2015

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…About 1,350,000 t of zinc has been released into the environment around the world recently (Singh et al 2003). Excessive amounts of zinc in soil may cause severe toxicity symptoms in plants like inhibition of seed germination (Michael and Krishnaswamy 2011), delayed or retarded plant growth (Andrade et al 2009) and slow root development (Lingua et al 2008), induction of foliar chlorosis (Wang et al 2009), significant alteration of mitotic activity (Rout and Das 2003), effects on membrane integrity and permeability (Stoyanova and Doncheva 2002) and interference of the solute uptake, transport, osmotic relations, and regulation of essential ions (Cherif et al 2010). Zinc not only affects plant growth but also gets accumulated in various plant organs, causing various health hazards.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zn toxicity on root morphology, ultrastructure, and the ability to accumulate Zn in Moso bamboo (Phyllostachys pubescens)

Liu

Chen

Mahmood

et al. 2014

Environ Sci Pollut Res

View full text Add to dashboard Cite

The effects of zinc (Zn) on seed germination and growth of Moso bamboo (Phyllostachys pubescens) were investigated. Under zinc stress, the seed germination rate did not show significant difference from that of the control. Hydroponics experiments indicated that Moso bamboo had a strong ability to accumulate Zn in the shoot and it reached its maximum value in the shoot at 100 μM Zn. The root Zn concentration ranged from 2,329.29 to 8,642.51 mg kg(-1), with the root Zn concentration at 10 μM Zn being 58.23 times that of the control. The root morphology parameters slightly increased at the lower Zn treatments, while growth restriction was evident at higher Zn treatments. Root ultrastructural studies revealed that the cell structure, root tips, and organelles were significantly changed under Zn stress as compared to those of the control. Some abnormalities were evident in the cell walls, vacuoles, mitochondria, plasmalemma, tonoplast, and xylem parenchyma of root cells. While Moso bamboo seems a suitable candidate for phytoremediation, its metal remediation ability should be further explored in future investigations.

show abstract

“…Ao final do experimento, plantas mantidas sob ar filtrado apresentaram menor teor de MDA do que aquelas submetidas ao estresse causado pelo ozônio. O mesmo ocorreu em plantas expostas ao excesso de metais pesados (Michael et al 2011) e ao estresse hídrico (Martim et al 2009 (Fernandes 2015) e não da morte celular, evidenciando a ativação de mecanismos endógenos de proteção.…”

Section: Methodsunclassified

Trocas gasosas e injúrias foliares visíveis em plantas jovens de Astronium graveolens Jacq. fumigadas com ozônio

Cassimiro

Souza

Moraes

2015

Hoehnea

View full text Add to dashboard Cite

-(Gas exchange and visible leaf injuries in saplings of Astronium graveolens Jacq. fumigated with ozone). Astronium graveolens Jacq. is a tree species of large occurrence in the Atlantic and the semideciduous forests. As ozone (O 3 ) concentrations in São Paulo State are phytotoxic, it was decided to determine some physiological and biochemical responses of this species to O 3 due to its importance in reclamation programs. Saplings were kept in two closed chambers: filtered air (FA) and filtered air enriched with O 3 (AF + O 3 , 100 ppb, 4 h day -1 , 7 days, n = 9). Leaf injury was assessed daily and at the end of the fumigation, carbon assimilation (A), stomatal conductance (gs), evapotranspiration (E), internal CO 2 concentration (Ci), maximum carbon assimilation (Amax), lipid peroxidation (LP), and relative permeability of electrolytes (RPE) were established. O 3 induced the appearance of leaf injuries and reduced A, gs, E, and Amax and did not change Ci, LP, and RPE. The species is moderately sensitive to O3. Long-term experiments should be conducted to verify if gas exchange reduction may adversely affect growth and hence affecting its use in reforestation programs. Keywords: Air pollution, tropical tree species, tropospheric ozone RESUMO -(Trocas gasosas e injúrias foliares visíveis em plantas jovens de Astronium graveolens Jacq. fumigadas com ozônio). Astronium graveolens Jacq. é uma espécie arbórea de grande ocorrência na floresta atlântica de encosta e do interior do Estado de São Paulo. Como as concentrações de ozônio (O 3 ) no Estado de São Paulo são fitotóxicas, decidiu-se avaliar algumas respostas fisiológicas e bioquímicas da espécie ao O 3 devido sua importância em programas de recuperação de áreas degradadas. Plantas jovens foram mantidas em câmaras fechadas, uma com ar filtrado (AF) e outra com ar filtrado enriquecido com O 3 (AF + O 3 , 100 ppb, 4 h dia -1 , 7 dias, n = 9). As injúrias foliares foram avaliadas diariamente e ao final da fumigação foram determinadas a assimilação de carbono (A), condutância estomática (gs), transpiração (E), concentração interna de CO2 (Ci), assimilação máxima de carbono (Amax), peroxidação de lipídios (PL) e permeabilidade relativa de eletrólitos (PRE). O O 3 induziu o surgimento de injúrias foliares e reduziu A, gs, E e Amax, porém não alterou Ci, PL e PRE. A espécie é medianamente sensível ao O3. Experimentos de longa duração devem ser realizados para verificar se a redução nas trocas gasosas pode prejudicar o crescimento a ponto de reduzir sua aplicação em programas de reflorestamento. Palavras-chave: espécies arbóreas tropicais, ozônio troposférico, poluição do ar 1. Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Avenida Miguel Stéfano, 3.687, 04301-902 São Paulo, SP, Brasil 2. Autor para correspondência: regmorae@yahoo.com.br IntroduçãoA atividade antrópica introduz na atmosfera diferentes gases e partículas que modificam as proporções de seus compostos naturais, alterando suas características e comprometendo suas propriedades e funções. As...

show abstract

The effect of zinc stress combined with high irradiance stress on membrane damage and antioxidative response in bean seedlings

Cited by 95 publications

References 61 publications

Comparative Effects of ZnO Nanoparticles, ZnO Bulk Particles, and Zn2+ on Brassica napus After Long-Term Exposure: Changes in Growth, Biochemical Compounds, Antioxidant Enzyme Activities, and Zn Bioaccumulation

Comparative Effects of ZnO Nanoparticles, ZnO Bulk Particles, and Zn2+ on Brassica napus After Long-Term Exposure: Changes in Growth, Biochemical Compounds, Antioxidant Enzyme Activities, and Zn Bioaccumulation

Effect of Zn toxicity on root morphology, ultrastructure, and the ability to accumulate Zn in Moso bamboo (Phyllostachys pubescens)

Trocas gasosas e injúrias foliares visíveis em plantas jovens de Astronium graveolens Jacq. fumigadas com ozônio

Contact Info

Product

Resources

About