Research Progress on the Roles of Cytokinin in Plant Response to Stress

Liu, Yun; Zhang, Mingjing; Meng, Zhe; Wang, Baoshan; Chen, Min

doi:10.3390/ijms21186574

Cited by 74 publications

(62 citation statements)

References 148 publications

(223 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plants exposed to salinity stress exhibited a reduction in growth and yield potential [31,55,56]. However, foliar applications of IAA or BA mitigated the negative effects of salinity, as evidenced by the improvements of root, shoot, and leaf weights and leaf area of faba bean (Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…The poor growth performance of salinized plants was closely correlated with ionic toxicity because of an overloaded accumulation of toxic Na + in the cells, and a substantial decrease in beneficial ions, namely K + , Ca 2+ , and Mg 2+ contents in all organs of faba bean (Figure 2A-D), which might have occurred due to the damages of the cell membrane, ion leakage, and disturbance in essential ion uptakes [31]. Our results are also supported by different studies under salt stress in different crops such as Oryza sativa [79,80] and Salicornia europaea [81].…”

Section: Discussionmentioning

confidence: 99%

“…Seed priming with IAA effectively diminished the adverse effects of salt stress on seed germination and plant growth of Triticum aestivum [29] and Zea mays [28]. CKs also promote plant growth aspects and the developmental process and plant adaptation to stress [23,30,31]. 6-Benzylaminpurine (BA) is a synthetic analog of cytokinin that acts the same as other naturally occurring cytokinins [32].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Foliar Application of Auxin or Cytokinin Can Confer Salinity Stress Tolerance in Vicia faba L.

2021

View full text Add to dashboard Cite

Soil salinity severely declines the availability of water and essential minerals to the plants, which hinders growth. The present study evaluates the potential roles of indole-3-acetic acid (IAA) and 6-benzyladenine (BA) for mitigating the adverse effects of soil-salinity in faba bean (Vicia faba L.). Plants were exposed to 150 mM NaCl stress and were sprayed with IAA (1.15 mM) or BA (0.9 mM). Our results revealed that foliar application of IAA or BA improved the growth traits of salinized faba bean due to the increased uptake of K+, Ca2+, and Mg2+ ions, accumulation of free amino acids, soluble sugars, and soluble proteins, and activity of superoxide dismutase, catalase, peroxidase, and ascorbate peroxidase. The principal component analysis (PCA) and heatmap clustering indicated that salinity-exposed plants exhibited lower growth and biomass production, which correlated with higher accumulation of Na+ and malondialdehyde. Moreover, electrophoretic patterns of protein showed new bands in IAA- or BA-treated salt-stressed plants, indicating that IAA or BA treatment can reprogram the metabolic processes to confer salinity tolerance. We also found that IAA has a greater capacity to ameliorate the salt stress than BA, although there is no significant difference in yield between these treatments. Finally, these findings can be helpful for a better understanding of IAA- and BA-mediated salt tolerance mechanisms and increasing production of faba bean in saline soils.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Foliar Application of Auxin or Cytokinin Can Confer Salinity Stress Tolerance in Vicia faba L.

2021

View full text Add to dashboard Cite

show abstract

“…This is due to the fact that cis-zeatin can only be produced by the degradation of tRNAs containing the hydroxylated form of i 6 A (io 6 A) [101]. Cis-zeatin is important to maintain minimal cytokinin activity under growth-limiting conditions, including abiotic stress [102][103][104]. In these conditions, cis-zeatin replaces trans-zeatin for a lower promotion of cell division activities and an efficient set-up of the stress-responsive genetic programme.…”

Section: Stress-responsive Modifications Of Trna Position 37mentioning

confidence: 99%

“…In these conditions, cis-zeatin replaces trans-zeatin for a lower promotion of cell division activities and an efficient set-up of the stress-responsive genetic programme. Heat, cold, drought and salt stress as well as nitrogen deficiency all lead to peaks of cis-zeatin with a strong decrease in trans-zeatin [102][103][104]. Accordingly, plants with higher levels of i 6 A and io 6 A in their tRNAs are proposed to be more resistant to abiotic stress as they can produce higher amounts of free ciszeatin following stress-induced tRNA turnover [102].…”

Section: Stress-responsive Modifications Of Trna Position 37mentioning

confidence: 99%

Variations in transfer and ribosomal RNA epitranscriptomic status can adapt eukaryote translation to changing physiological and environmental conditions

2021

View full text Add to dashboard Cite

The timely reprogramming of gene expression in response to internal and external cues is essential to eukaryote development and acclimation to changing environments. Chemically modifying molecular receptors and transducers of these signals is one way to efficiently induce proper physiological responses. Post-translation modifications, regulating protein biological activities, are central to many well-known signal-responding pathways. Recently, messenger RNA (mRNA) chemical (i.e. epitranscriptomic) modifications were also shown to play a key role in these processes. In contrast, transfer RNA (tRNA) and ribosomal RNA (rRNA) chemical modifications, although critical for optimal function of the translation apparatus, and much more diverse and quantitatively important compared to mRNA modifications, were until recently considered as mainly static chemical decorations. We present here recent observations that are challenging this view and supporting the hypothesis that tRNA and rRNA modifications dynamically respond to various cell and environmental conditions and contribute to adapt translation to these conditions.

show abstract

Investigation of phytotoxicity and defense responses in pepper exposed to molybdenum disulfide nanoparticles by multi‐omics and phenotypic analyses

Li,

Yan,

Meng

et al. 2023

Land Degrad Dev

View full text Add to dashboard Cite

Molybdenum disulfide nanoparticles (MoS2NPs) have attracted considerable attention in the fields of environmental protection and agricultural production. Understanding the potential crop risk (especially in edible parts) incurred by MoS2NPs and the corresponding plant defense against toxicity is a prerequisite for assessing human dietary safety and improving the safe‐by design of such NPs; however, relevant information remains largely unknown. This study examines the toxicity of MoS2NPs to edible vegetable crops of pepper and their corresponding defense mechanisms. Our findings revealed that exposure to MoS2NPs triggered the defense in pepper via reducing transpiration rates in leaves by 36.5%–54.8% and via increasing catalase activity, mineral elements, and gibberellic acid in fruit by 10.7%–32.4%, 0.2%–92.8%, and 28.0%–72.4%, respectively. The defensive response to MoS2NPs stress was also reflected in the elevated amino acid metabolism (e.g., arginine and proline metabolism in leaves, and alanine, aspartate, and glutamate metabolism in fruits), and in the regulation of the oxidation–reduction process proteins in fruits (e.g., increased acyl‐coenzyme A oxidase and cytochrome P450, decreased NADH–ubiquinone oxidoreductase chain and cytokinin dehydrogenase). However, oxidative stress in pepper fruits (e.g., increased H2O2 and malondialdehyde, ultrastructural damage, reduced biomass) was still induced by MoS2NPs, suggesting an unbalance between defense systems and abiotic stress. This study provides valuable insights into the impacts of MoS2NPs on edible parts of crops and helps to assess their ecological risk.

show abstract

Research Progress on the Roles of Cytokinin in Plant Response to Stress

Cited by 74 publications

References 148 publications

Foliar Application of Auxin or Cytokinin Can Confer Salinity Stress Tolerance in Vicia faba L.

Foliar Application of Auxin or Cytokinin Can Confer Salinity Stress Tolerance in Vicia faba L.

Variations in transfer and ribosomal RNA epitranscriptomic status can adapt eukaryote translation to changing physiological and environmental conditions

Investigation of phytotoxicity and defense responses in pepper exposed to molybdenum disulfide nanoparticles by multi‐omics and phenotypic analyses

Contact Info

Product

Resources

About