Methylglyoxal with glycine or succinate enhances differentiation and shoot morphogenesis in Nicotiana tabacum callus

Ray, Anamika; Ray, Subhankar; Mukhopadhyay, Sandip; Ray, Manju

doi:10.1007/s10535-012-0272-2

Cited by 16 publications

(7 citation statements)

References 23 publications

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“…Earlier findings have also indicated MG to play a regulatory role in many aspects of plants such as germination, root development, shoot morphogenesis, stomatal closure, photosynthesis, pollination and stress tolerance etc. [33,34,35,36]. At 300 mM NaCl a significant decrease in MG is observed in AtGLYI2 transgenic plants compared to AtGLYI3 and AtGLYI6.…”

Section: Plos Onementioning

confidence: 92%

Zn2+ dependent glyoxalase I plays the major role in methylglyoxal detoxification and salinity stress tolerance in plants

et al. 2020

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Glyoxalase pathway is the major pathway of methylglyoxal detoxification and is ubiquitously present in all organisms ranging from prokaryotes to eukaryotes. Glyoxalase I (GLYI) and Glyoxalase II (GLYII), the two core enzymes of this pathway work together to neutralize methylglyoxal (MG), a dicarbonyl molecule with detrimental cytotoxicity at higher concentrations. The first step towards the detoxification of MG is catalyzed by GLYI, a metalloenzyme that requires divalent metal ions (either Zn 2+ as seen in eukaryotes or Ni 2+ as in prokaryotes). However, both Zn 2+ and Ni 2+ dependent GLYIs have been shown to co-exist in a higher eukaryote i.e. Arabidopsis thaliana. In the present study, we determine the role of both Zn 2+ dependent (AtGLYI2) and Ni 2+ dependent (AtGLYI3, AtGLYI6) GLYIs from Arabidopsis in salinity stress tolerance. AtGLYI2 overexpressing Arabidopsis plants showed better growth rate while maintaining lower levels of MG under high saline conditions. They were taller with more number of silique formation with respect to their Ni 2+ dependent counterparts. Further, lack in germination of Arabidopsis AtGLYI2 mutants in presence of exogenous MG indicates the direct involvement of Zn 2+ dependent GLYI in MG detoxification, suggesting Zn 2+ dependent GLYI as the main enzyme responsible for MG detoxification and salinity stress tolerance.

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Section: Plos Onementioning

confidence: 92%

Zn2+ dependent glyoxalase I plays the major role in methylglyoxal detoxification and salinity stress tolerance in plants

et al. 2020

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“…MG could function like a plant hormone and replace kinetin to initiate differentiation of plantlets from calli in Solanum nigrum and Daucus carota [ 72 ]. MG has a positive effect on differentiation and shoot morphogenesis of tobacco callus ( Nicotiana tabacum L.) [ 73 ]. MG is also an inhibitor of seed germination and root elongation in plants [ 74 ].…”

Section: Functional Roles Of Glyoxalases In Plants: From the Past mentioning

confidence: 99%

Glyoxalase Goes Green: The Expanding Roles of Glyoxalase in Plants

Sankaranarayanan

Jamshed

Abhinandan

et al. 2017

IJMS

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The ubiquitous glyoxalase enzymatic pathway is involved in the detoxification of methylglyoxal (MG), a cytotoxic byproduct of glycolysis. The glyoxalase system has been more extensively studied in animals versus plants. Plant glyoxalases have been primarily associated with stress responses and their overexpression is known to impart tolerance to various abiotic stresses. In plants, glyoxalases exist as multigene families, and new roles for glyoxalases in various developmental and signaling pathways have started to emerge. Glyoxalase-based MG detoxification has now been shown to be important for pollination responses. During self-incompatibility response in Brassicaceae, MG is required to target compatibility factors for proteasomal degradation, while accumulation of glyoxalase leads to MG detoxification and efficient pollination. In this review, we discuss the importance of glyoxalase systems and their emerging biological roles in plants.

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“…The reduction of dicarbonyls detoxifies and prevents the formation of advanced glycation end-products (AGEs), also known as glycotoxins, associated with development of numerous degenerative human diseases (Chen et al, 2009;Gkogkolou and Bohm, 2012;Kizer et al, 2014). In plants, the build-up of dicarbonyls leads to oxidative stress and cell death resulting in stunted growth (Hoque et al, 2012;Ray et al, 2013;Sankaranarayanan et al, 2015;Li, 2016). One of these dicarbonyls, generated through multiple pathways in plants and animals, is methylglyoxal (Yadav et al, 2005a,b;Hoque et al, 2016;Mostofa et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

AcDCXR Is a Cowpea Aphid Effector With Putative Roles in Altering Host Immunity and Physiology

et al. 2020

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Methylglyoxal with glycine or succinate enhances differentiation and shoot morphogenesis in Nicotiana tabacum callus

Cited by 16 publications

References 23 publications

Zn2+ dependent glyoxalase I plays the major role in methylglyoxal detoxification and salinity stress tolerance in plants

Zn2+ dependent glyoxalase I plays the major role in methylglyoxal detoxification and salinity stress tolerance in plants

Glyoxalase Goes Green: The Expanding Roles of Glyoxalase in Plants

AcDCXR Is a Cowpea Aphid Effector With Putative Roles in Altering Host Immunity and Physiology

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