Physiological and molecular analysis of polyethylene glycol‐induced reduction of aluminium accumulation in the root tips of common bean (<i>Phaseolus vulgaris</i>)

Yang, Zhong‐Bao; Eticha, Dejene; Rotter, Björn; Rao, Idupulapati M.; Horst, Walter J.

doi:10.1111/j.1469-8137.2011.03784.x

Cited by 32 publications

(37 citation statements)

References 65 publications

(147 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The PEG-induced inhibition of Al accumulation in the root tips of common bean (Yang et al 2011c) was consistent with PEG-suppressed Al-induced expression of the multidrug and toxin extrusion (MATE) family protein gene (Fig. 3b) confirming the PEG-induced alleviation of Al toxicity at the molecular level.…”

Section: Root-growth Response Of Plants To Aluminium Toxicity and Drosupporting

confidence: 48%

“…Several CW-modifying proteins such as expansins, xyloglucan endotransglucosylase/hydrolases (XTHs), endoglucanases and pectin methylesterases (PMEs) play key roles in the modification of CW structure and thus porosity (recently reviewed by Sasidharan et al 2011). In Arabidopsis, microarray analysis indicated that most of the CW-associated genes including genes encoding those above-mentioned CW-modifying proteins are down-regulated under water deficit (Bray 2004) supporting the results generated from transcriptome analysis of the drought (PEG stress)-subjected root apices of common bean by SuperSAGE (serial of analysis of gene expression) (Yang et al 2011c). XTHs play key roles in modification of CW structure and extensibility through the cleavage and re-formation of bonds between xyloglucan chains (Bray 2004; Rose et al 2002).…”

Section: Cell-wall Porositymentioning

confidence: 63%

“…Under water deficit the loss of water in the apoplast will result in a collapse of wall structure, and consequently reduction of wall porosity and polymer adhesion or cross-linking ( Fig. 4; Moore et al 2008b;Yang et al 2011c).…”

Section: Cell-wall Porositymentioning

confidence: 99%

“…A HRGP gene encoding hydroxyprolinrich glycoprotein has been proposed to participate in the modification of CW porosity during PEG-induced osmotic stress in common bean ( Fig. 4b; Yang et al 2011c).…”

Section: Cell-wall Porositymentioning

confidence: 99%

“…In addition, the hydrophilic protein dehydrin, which is supposed to be localized in the CW, may also play a role similar to pectin in preventing the CW from water deficit-caused mechanical fracture (Layton et al 2010), maintaining the elastic extension (reversible stretching) properties and, consequently, the porosity of the CW. Also, CW structural proteins such as the hydroxyproline-rich Yang et al (2010Yang et al ( , 2011c glycoprotein extensin, can cross-link with other polymers in the CW and thus affect CW porosity (Brett and Waldron 1996). A HRGP gene encoding hydroxyprolinrich glycoprotein has been proposed to participate in the modification of CW porosity during PEG-induced osmotic stress in common bean ( Fig.…”

Section: Cell-wall Porositymentioning

confidence: 99%

See 4 more Smart Citations

Interaction of aluminium and drought stress on root growth and crop yield on acid soils

2013

Self Cite

View full text Add to dashboard Cite

Background Aluminium (Al) toxicity and drought stress are two major constraints for crop production in the world, particularly in the tropics. The variation in rainfall distribution and longer dry spells in much of the tropics during the main growing period of crops are becoming increasingly important yield-limiting factors with the global climate change. As a result, crop genotypes that are tolerant of both drought and Al toxicity need to be developed. Scope The present review mainly focuses on the interaction of Al and drought on root development, crop growth and yield on acid soils. It summarizes evidence from our own studies and other published/related work, and provides novel insights into the breeding for the adaptation to these combined abiotic stresses. The primary symptom of Al phytotoxicity is the inhibition of root growth. The impeded root system will restrict the roots for exploring the acid subsoil to absorb water and nutrients which is particularly important under condition of low soil moisture in the surface soil under drought. Whereas drought primarily affects shoot growth, effects of phytotoxic Al on shoot growth are mostly secondary effects that are induced by Al affecting root growth and function, while under drought stress root growth may even be promoted. Much progress has recently been made in the understanding of the physiology and molecular biology of the interaction between Al toxicity and drought stress in common bean (Phaseolus vulgaris L.) in hydroponics and in an Al-toxic soil. Conclusions Crops growing on acid soils yield less than their potential because of the poorly developed root system that limits nutrient and water uptake. Breeding for drought resistance must be combined with Al resistance, to assure that drought resistance is expressed adequately in crops grown on soils with acid Al-toxic subsoils.

show abstract

Section: Root-growth Response Of Plants To Aluminium Toxicity and Drosupporting

confidence: 48%

Section: Cell-wall Porositymentioning

confidence: 63%

Section: Cell-wall Porositymentioning

confidence: 99%

Section: Cell-wall Porositymentioning

confidence: 99%

Section: Cell-wall Porositymentioning

confidence: 99%

See 3 more Smart Citations

Interaction of aluminium and drought stress on root growth and crop yield on acid soils

2013

Self Cite

View full text Add to dashboard Cite

show abstract

Molecular mechanisms of plant adaptive responses to heavy metals stress

Kosakivska

Бабенко

Romanenko

et al. 2020

Cell Biology International

103

View full text Add to dashboard Cite

Heavy metals (HMs) are among the main environmental pollutants that can enter the soil, water bodies, and the atmosphere as a result of natural processes (weathering of rocks, volcanic activity), and also as a result of human activities (mining, metallurgical and chemical industries, transport, application of mineral fertilizers). Plants counteract the HMs stresses through morphological and physiological adaptations, which are imparted through well‐coordinated molecular mechanisms. New approaches, which include transcriptomics, genomics, proteomics, and metabolomics analyses, have opened the paths to understand such complex networks. This review sheds light on molecular mechanisms included in plant adaptive and defense responses during metal stress. It is focused on the entry of HMs into plants, its transport and accumulation, effects on the main physiological processes, gene expressions included in plant adaptive and defense responses during HM stress. Analysis of new data allowed the authors to conclude that the most important mechanism of HM tolerance is extracellular and intracellular HM sequestration. Organic anions (malate, oxalate, etc.) provide extracellular sequestration of HM ions. Intracellular HM sequestration depends not only on a direct binding mechanism with different polymers (pectin, lignin, cellulose, hemicellulose, etc.) or organic anions but also on the action of cellular receptors and transmembrane transporters. We focused on the functioning chloroplasts, mitochondria, and the Golgi complex under HM stress. The currently known molecular mechanisms of plant tolerance to the toxic effects of HMs are analyzed.

show abstract

Aluminium Toxicity to Plants as Influenced by the Properties of the Root Growth Environment Affected by Other Co-Stressors: A Review

Siecińska

Nosalewicz

2016

Reviews of Environmental Contamination and Toxicology

View full text Add to dashboard Cite

Aluminium toxicity to crops depends on the acidity of the soil and specific plant resistance. However, it is also strongly affected by other environmental factors that have to be considered to properly evaluate the resultant effects on plants. Observed weather perturbations and predicted climate changes will increase the probability of co-occurrence of aluminium toxicity and other abiotic stresses.In this review the mechanisms of plant-aluminium interactions are shown to be influenced by soil mineral nutrients, heavy metals, organic matter, oxidative stress and drought. Described effects of aluminium toxicity include: root growth inhibition, reduction in the uptake of mineral nutrients resulting from the inhibition of transport processes through ion channels; epigenetic changes to DNA resulting in gene silencing. Complex processes occurring in the rhizosphere are highlighted, including the role of soil organic matter and aluminium detoxification by mucilage.There is a considerable research gap in the understanding of root growth in the soil environment in the presence of toxic aluminium concentrations as affected by interactions with abiotic stressors. This knowledge is important for the selection of feasible methods aimed at the reduction of negative consequences of crop production in acidic soils affected by adverse growth environment.

show abstract

Physiological and molecular analysis of polyethylene glycol‐induced reduction of aluminium accumulation in the root tips of common bean (Phaseolus vulgaris)

Cited by 32 publications

References 65 publications

Interaction of aluminium and drought stress on root growth and crop yield on acid soils

Interaction of aluminium and drought stress on root growth and crop yield on acid soils

Molecular mechanisms of plant adaptive responses to heavy metals stress

Aluminium Toxicity to Plants as Influenced by the Properties of the Root Growth Environment Affected by Other Co-Stressors: A Review

Contact Info

Product

Resources

About