Effects of exogenous putrescine on glycolysis and Krebs cycle metabolism in cucumber leaves subjected to salt stress

Zhong, Min; Yuan, Yun; Shu, Sheng; Sun, Jian; Guo, Shirong; Yuan, Ruonan; Tang, Yuanyuan

doi:10.1007/s10725-015-0136-9

Cited by 60 publications

(42 citation statements)

References 53 publications

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“…Under stress conditions, putrescine causes a stimulation of the tricarboxylic acid pathway (TCAP) and thus facilitates mitochondrial ATP production (Zhong et al, ). So far, this effect has been demonstrated for salt stress, when putrescine was supplied exogenously.…”

Section: Roles Of Putrescine In Mitochondriamentioning

confidence: 99%

What is the role of putrescine accumulated under potassium deficiency?

Cui

Pottosin

Lamade

et al. 2020

Plant Cell & Environment

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Biomarker metabolites are of increasing interest in crops since they open avenues for precision agriculture, whereby nutritional needs and stresses can be monitored optimally. Putrescine has the potential to be a useful biomarker to reveal potassium (K + ) deficiency. In fact, although this diamine has also been observed to increase during other stresses such as drought, cold or heavy metals, respective changes are comparably low. Due to its multifaceted biochemical properties, several roles for putrescine under K + deficiency have been suggested, such as cation balance, antioxidant, reactive oxygen species mediated signalling, osmolyte or pH regulator. However, the specific association of putrescine build-up with low K + availability in plants remains poorly understood, and possible regulatory roles must be consistent with putrescine concentration found in plant tissues. We hypothesize that the massive increase of putrescine upon K + starvation plays an adaptive role. A distinction of putrescine function from that of other polyamines (spermine, spermidine) may be based either on its specificity or (which is probably more relevant under K + deficiency) on a very high attainable concentration of putrescine, which far exceeds those for spermidine and spermine. putrescine and its catabolites appear to possess a strong potential in controlling cellular K + and Ca 2+ , and mitochondria and chloroplasts bioenergetics under K + stress. K E Y W O R D Sdeficiency, ion balance, polyamines, potassium, putrescine

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Section: Roles Of Putrescine In Mitochondriamentioning

confidence: 99%

What is the role of putrescine accumulated under potassium deficiency?

Cui

Pottosin

Lamade

et al. 2020

Plant Cell & Environment

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“…Interestingly, protein abundance significantly recovered along with inoculation time (Figure 5A). Several studies reported that both the ENO protein and the gene expression increased under salt stress and attempted to generate more energy to cope with the stress (Ndimba et al, 2005; Zhong et al, 2015; An et al, 2016; Yuan et al, 2016). …”

Section: Discussionmentioning

confidence: 99%

Proteomic Analysis Reveals the Positive Roles of the Plant-Growth-Promoting Rhizobacterium NSY50 in the Response of Cucumber Roots to Fusarium oxysporum f. sp. cucumerinum Inoculation

Shi

Yuan

et al. 2016

Front. Plant Sci.

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Plant-growth-promoting rhizobacteria (PGPR) can both improve plant growth and enhance plant resistance against a variety of environmental stresses. To investigate the mechanisms that PGPR use to protect plants under pathogenic attack, transmission electron microscopy analysis and a proteomic approach were designed to test the effects of the new potential PGPR strain Paenibacillus polymyxa NSY50 on cucumber seedling roots after they were inoculated with the destructive phytopathogen Fusarium oxysporum f. sp. cucumerinum (FOC). NSY50 could apparently mitigate the injury caused by the FOC infection and maintain the stability of cell structures. The two-dimensional electrophoresis (2-DE) approach in conjunction with MALDI-TOF/TOF analysis revealed a total of 56 proteins that were differentially expressed in response to NSY50 and/or FOC. The application of NSY50 up-regulated most of the identified proteins that were involved in carbohydrate metabolism and amino acid metabolism under normal conditions, which implied that both energy generation and the production of amino acids were enhanced, thereby ensuring an adequate supply of amino acids for the synthesis of new proteins in cucumber seedlings to promote plant growth. Inoculation with FOC inhibited most of the proteins related to carbohydrate and energy metabolism and to protein metabolism. The combined inoculation treatment (NSY50+FOC) accumulated abundant proteins involved in defense mechanisms against oxidation and detoxification as well as carbohydrate metabolism, which might play important roles in preventing pathogens from attacking. Meanwhile, western blotting was used to analyze the accumulation of enolase (ENO) and S-adenosylmethionine synthase (SAMs). NSY50 further increased the expression of ENO and SAMs under FOC stress. In addition, NSY50 adjusted the transcription levels of genes related to those proteins. Taken together, these results suggest that P. polymyxa NSY50 may promote plant growth and alleviate FOC-induced damage by improving the metabolism and activation of defense-related proteins in cucumber roots.

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“…The most common PA present in halophytes are: cadaverine (Cad), putrescine (Put), spermidine (Spd) and spermine (Spm) [180,181]. These compounds can be located in all plant organs, being implicated in a plethora of metabolic processes, such as leaf senescence, morphogenesis, protection of photosynthetic tissues, growth and embryogenesis, serving as bioindicators of stress-tolerant genotypes [182][183][184][185][186][187][188]. Moreover, PA regulates the antioxidant machinery acting as free-radical scavengers [189], and contribute to abiotic stress signaling [190].…”

Section: Osmoprotectants: Proline Glycine Betaine and Polyaminesmentioning

confidence: 99%

“…Improved plant growth and nutrient homeostasis, decreased ROS accumulation and increased enzymatic and non-enzymatic antioxidant defenses [187] 8 mM Put Cucumis sativus Improved plant growth and stimulated glycolysis and Krebs cycle pathways of leaves [188] 100 mg/L Spd, 150 mg/L Spm or 150 mg/L Put as foliar spray…”

Section: Lolium Perennementioning

confidence: 99%

Towards a Sustainable Agriculture: Strategies Involving Phytoprotectants against Salt Stress

et al. 2020

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Salinity is one of the main constraints for agriculture productivity worldwide. This important abiotic stress has worsened in the last 20 years due to the increase in water demands in arid and semi-arid areas. In this context, increasing tolerance of crop plants to salt stress is needed to guarantee future food supply to a growing population. This review compiles knowledge on the use of phytoprotectants of microbial origin (arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria), osmoprotectants, melatonin, phytohormones and antioxidant metabolism-related compounds as alleviators of salt stress in numerous plant species. Phytoprotectants are discussed in detail, including their nature, applicability, and role in the plant in terms of physiological and phenotype effects. As a result, increased crop yield and crop quality can be achieved, which in turn positively impact food security. Herein, efforts from academic and industrial sectors should focus on defining the treatment conditions and plant-phytoprotectant associations providing higher benefits.

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Effects of exogenous putrescine on glycolysis and Krebs cycle metabolism in cucumber leaves subjected to salt stress

Cited by 60 publications

References 53 publications

What is the role of putrescine accumulated under potassium deficiency?

What is the role of putrescine accumulated under potassium deficiency?

Proteomic Analysis Reveals the Positive Roles of the Plant-Growth-Promoting Rhizobacterium NSY50 in the Response of Cucumber Roots to Fusarium oxysporum f. sp. cucumerinum Inoculation

Towards a Sustainable Agriculture: Strategies Involving Phytoprotectants against Salt Stress

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