Functional identification of a rice trehalase gene involved in salt stress tolerance

Islam, M. O.; Kato, Hideki; Shima, Shuhei; Tezuka, Daisuke; Matsui, Hirokazu; Imai, Ryozo

doi:10.1016/j.gene.2018.10.071

Cited by 33 publications

(15 citation statements)

References 40 publications

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“…Consistent with this observation, the induction of Sus2 genes by AS in our study may be responsible for high-pH-induced oxygen deficiency conditions, as Sus2 was induced specifically by oxygen deficiency [51]. Trehalose is a non-reducing disaccharide that serves as an energy source for plants subjected to stress [52]. Trehalose-6-phosphate synthase (TPS) is a key enzyme involved in the biosynthesis of trehalose.…”

Section: Discussionsupporting

confidence: 72%

Integration of mRNA and miRNA Analysis Reveals the Molecular Mechanism Underlying Salt and Alkali Stress Tolerance in Tobacco

Chen

et al. 2019

IJMS

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Salinity is one of the most severe forms of abiotic stress and affects crop yields worldwide. Plants respond to salinity stress via a sophisticated mechanism at the physiological, transcriptional and metabolic levels. However, the molecular regulatory networks involved in salt and alkali tolerance have not yet been elucidated. We developed an RNA-seq technique to perform mRNA and small RNA (sRNA) sequencing of plants under salt (NaCl) and alkali (NaHCO3) stress in tobacco. Overall, 8064 differentially expressed genes (DEGs) and 33 differentially expressed microRNAs (DE miRNAs) were identified in response to salt and alkali stress. A total of 1578 overlapping DEGs, which exhibit the same expression patterns and are involved in ion channel, aquaporin (AQP) and antioxidant activities, were identified. Furthermore, genes involved in several biological processes, such as “photosynthesis” and “starch and sucrose metabolism,” were specifically enriched under NaHCO3 treatment. We also identified 15 and 22 miRNAs that were differentially expressed in response to NaCl and NaHCO3, respectively. Analysis of inverse correlations between miRNAs and target mRNAs revealed 26 mRNA-miRNA interactions under NaCl treatment and 139 mRNA-miRNA interactions under NaHCO3 treatment. This study provides new insights into the molecular mechanisms underlying the response of tobacco to salinity stress.

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Section: Discussionsupporting

confidence: 72%

Integration of mRNA and miRNA Analysis Reveals the Molecular Mechanism Underlying Salt and Alkali Stress Tolerance in Tobacco

Chen

et al. 2019

IJMS

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“…6(A)–(D)). The synthesis of trehalose in plants is also catalysed by TPS and TPP (Islam et al, 2019). However, the abundance of trehalose in plants is lower than that in insects (Lunn et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Brown planthopper infestations alter sugar metabolism in the rice plant as well as brown planthopper

Liu

et al. 2021

Physiol. Entomol.

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Carbohydrate plays an important role in rice resistance or tolerance to pests, and also affects the continuous feeding of brown planthoppers (BPHs) on rice. However, the change in the sugar metabolism of BPH and rice plant after BPH infestation is not well studied. In this study, the rice variety Taichung Native 1 (TN1) was taken as a control group, and four kinds of common rice varieties in Zhejiang province (China), Zhong Jiazao 17 (ZJZ17), Zhong Zheyou 8 (ZZY8), Tian Youhuazhan (TYHZ), and Jing Liangyouhuazhan (JLYHZ), were taken as experimental group. The results showed that the BPHs best preferred the TN1 rice variety. BPHs in fifth instar feeding on the other four rice varieties had lower levels of trehalose, glucose, and glycogen, and the difference in sugar levels further resulted in differences in trehalose‐6‐phosphate synthase and trehalase expression and trehalase activity. In addition, after BPHs infestation, the glucose content in the sheath at 30 days decreased, while it increased in the sheath at 60 days. Moreover, the trehalose content in the sheath at 30 and 60 days decreased. The starch in the leaves at 60 days also decreased. This study demonstrated that both BPHs and rice plant showed changes in carbohydrate metabolism after BPHs feeding on rice, but these changes varied with rice varieties and rice growth stage. These results provide a basis for a better understanding the physiological interaction between BPH and rice plant.

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“…Over-expression of OsTRE1 in rice was associated with improved salt tolerance 106 and over-expression of AtTRE1 in Arabidopsis was associated with improved drought tolerance 107 . However, these known phenotypic consequences of alterations in trehalase activities would not necessarily predict an association between inhibition of trehalase activity and decreased plasticity in response to nutrient deficiency stress, as was observed here.…”

Section: /44mentioning

confidence: 99%

The genome of stress tolerant crop wild relativePaspalum vaginatumleads to increased biomass productivity in the cropZea mays

Sun

Wase

Shu

et al. 2021

Preprint

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A number of crop wild relatives can tolerate extreme stressed to a degree outside the range observed in their domesticated relatives. However, it is unclear whether or how the molecular mechanisms employed by these species can be translated to domesticated crops. Paspalum Paspalum vaginatum is a self-incompatible and multiply stress-tolerant wild relative of maize and sorghum. Here we describe the sequencing and pseudomolecule level assembly of a vegetatively propagated accession of P. vaginatum. Phylogenetic analysis based on 6,151 single-copy syntenic orthologous conserved in 6 related grass species placed paspalum as an outgroup of the maize-sorghum clade demonstrating paspalum as their closest sequenced wild relative. In parallel metabolic experiments, paspalum, but neither maize nor sorghum, exhibited significant increases in trehalose when grown under nutrient-deficit conditions. Inducing trehalose accumulation in maize, imitating the metabolic phenotype of paspalum, resulting in autophagy dependent increases in biomass accumulation.

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Functional identification of a rice trehalase gene involved in salt stress tolerance

Cited by 33 publications

References 40 publications

Integration of mRNA and miRNA Analysis Reveals the Molecular Mechanism Underlying Salt and Alkali Stress Tolerance in Tobacco

Integration of mRNA and miRNA Analysis Reveals the Molecular Mechanism Underlying Salt and Alkali Stress Tolerance in Tobacco

Brown planthopper infestations alter sugar metabolism in the rice plant as well as brown planthopper

The genome of stress tolerant crop wild relativePaspalum vaginatumleads to increased biomass productivity in the cropZea mays

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