Abiotic stress response in plants: When post-transcriptional and post-translational regulations control transcription

Mazzucotelli, Elisabetta; Mastrangelo, Anna Maria; Crosatti, Cristina; Guerra, Davide; Stanca, A. M.; Cattivelli, Luigi

doi:10.1016/j.plantsci.2008.02.005

Cited by 244 publications

(129 citation statements)

References 131 publications

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“…Cold acclimation usually involves regulation at transcriptional, post-transcriptional and post-translational levels (Mazzucotelli et al 2008, Theocharis et al 2012. The results of our present spring frost study suggest that PA metabolism is down-regulated in Scots pine needles when the temperature falls below zero.…”

Section: Discussionmentioning

confidence: 50%

Coping with spring frost-effects on polyamine metabolism of Scots pine seedlings

Muilu‐Mäkelä¹,

Vuosku²,

Saarinen³

et al. 2017

iForest

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(1) Polyamines (PA) are ubiquitous polycations known to be involved in several phases of plant development as well as in tolerance to abiotic stresses. Phenols are complex secondary metabolites produced via the phenylpropanoid pathway that contain, e.g., cell wall compounds and antioxidants. Phenols are known to enhance chilling tolerance of plants. PA and phenolic pathways are connected via conjugation. In boreal coniferous forests spring frost has been considered to have severe effects on the survival of tree seedlings. Such effects are likely to increase in the future. The present study focuses on the role of PA and phenylpropanoid syntheses in the coping strategies of Scots pine exposed to cold temperatures during the vulnerable early seedling phase in late spring and early summer. We found that spring frost affects the expression of genes regulating PA metabolism and phenylpropanoid synthesis differently in above and below ground parts of the seedlings, whereas PA or phenol contents in tissues were not affected. The results suggest that Scots pine seedlings may not have time to develop metabolite level responses during a short period of freezing stress and, therefore, the originally different PA levels, especially in roots, may influence the tolerance of Scots pine seedlings to spring frost.

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Section: Discussionmentioning

confidence: 50%

Coping with spring frost-effects on polyamine metabolism of Scots pine seedlings

Muilu‐Mäkelä¹,

Vuosku²,

Saarinen³

et al. 2017

iForest

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“…The rapidly growing world population has made it necessary to minimize stressful environmental conditions that result in negative plant responses and loss of crop productivity (Maathuis et al, 2003;Tester and Davenport, 2003;Mazzucotelli et al, 2008;Tardideu, 2013). Agricultural productivity is severely affected by high soil salinity and is responsible for the decline in soil fertility throughout the world (Mahesh and Satish, 2008).…”

Section: Introductionmentioning

confidence: 99%

Expression of SOD gene and evaluating its role in stress tolerance in NaCl and PEG stressed Lycopersicum esculentum

Aydin¹,

Büyük²,

Aras³

2014

Turk J Bot

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Antioxidant enzyme mechanisms are important for protecting crop productivity against stressful environmental conditions. Therefore, the current study was designed to evaluate lipid peroxidation (via malondialdehyde (MDA)) levels, superoxide dismutase (SOD) gene expression profiles, and SOD enzyme activities in tomato (Lycopersicum esculentum L.) plants subjected to different concentrations (100 and 150 mM) and time periods of NaCl and polyethylene glycol (PEG) stress (3 h, 6 h, 9 h, 12 h, and 48 h). Enhancement of lipid peroxidation in plants may be attributed to the increased accumulation of reactive oxygen species (ROS). Results indicated the antioxidant responses of tomato plants could be reflected as changes in gene transcripts and enzyme activities of SOD, but SOD gene expression patterns and changes in SOD enzyme activity revealed no positive correlation. As a result, stressful conditions led to stress in tomato plants (indicated by increased MDA levels) and triggered the expression levels of the SOD gene. The antioxidative response of tomato plants to PEG stress was found to be more vigorous than the response to NaCl stress. All these results pointed to the importance of SOD for stress defense in tomato. The overexpression and silencing of the SOD gene in tomato plants under NaCl and PEG stresses remain to be identified in further studies.

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“…The rapidly growing world population has made it necessary to prevent losses in crop productivity (Tester and Davenport, 2003;Mazzucotelli et al, 2008). Plants are exposed to a wide array of environmental stress factors, such as drought, heat, cold, ultraviolent light, air pollution, and pathogen attacks among others (McKersie and Leshem, 1994;Pinheiro et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Relationships among lipid peroxidation, SOD enzyme activity, and SOD gene expression profile in Lycopersicum esculentum L. exposed to cold stress

Aydin¹,

Büyük²,

Aras³

2013

Genet. Mol. Res.

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ABSTRACT. The current study was designed to evaluate lipid peroxidation (via malondialdehyde) levels, the superoxide dismutase (SOD) gene expression profile, and SOD enzyme activity in tomato plants (Lycopersicum esculentum L.) subjected to different time periods of cold stress (control, 2, 4, 6, 8, and 10 days). Results revealed that maximum lipid peroxidation occurred in plants exposed to cold stress for 10 days, and SOD enzyme activity gradually increased with increasing exposure to cold stress. The level of mRNA increased within 4 days of cold treatment. After this period, the level tended to decrease and reached a minimum by the eighth day. A complex gene expression profile was determined, which was not statistically significant until the eighth day. At the 10th day of cold treatment, the mRNA level of SOD increased and changes between the 8th and 10th day were found to be statistically significant at the P < 0.05 level. These results suggest that Gene expression profiles of superoxide dismutase the SOD gene and enzyme play a key role in resistance to cold stress conditions in tomato plants.

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Abiotic stress response in plants: When post-transcriptional and post-translational regulations control transcription

Cited by 244 publications

References 131 publications

Coping with spring frost-effects on polyamine metabolism of Scots pine seedlings

Coping with spring frost-effects on polyamine metabolism of Scots pine seedlings

Expression of SOD gene and evaluating its role in stress tolerance in NaCl and PEG stressed Lycopersicum esculentum

Relationships among lipid peroxidation, SOD enzyme activity, and SOD gene expression profile in Lycopersicum esculentum L. exposed to cold stress

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