Melatonin and dopamine enhance waterlogging tolerance by modulating ROS scavenging, nitrogen uptake, and the rhizosphere microbial community in Malus hupehensis

Cao, Yang; Du, Peihua; Yin, Baoying; Zhou, Shasha; Li, Zhongyong; Zhang, Xueying; Xu, Jin; Liang, Bowen

doi:10.1007/s11104-022-05759-w

Cited by 15 publications

(20 citation statements)

References 57 publications

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“…Under anoxic conditions, rice mutants with the loss of functions of two enzymes involved in MEL biosynthesis (acetylserotonin methyl transferase [ASMT] and SNAT) showed retarded coleoptile and seedling growth, but the growth was recovered by the exogenous MEL application 145 . MEL regulates seedling growth under WL by mediating several other physiological processes including carbon assimilation, osmoregulation balance, and activating ROS scavenging system under anaerobic stress 146–148 . In general, MEL reprograms the biosynthesis and metabolism of ethylene (ET) and polyamines to improve WL tolerance 149–151 .…”

Section: Mel Sg and Abiotic Stressorsmentioning

confidence: 99%

Melatonin as a key regulator in seed germination under abiotic stress

Wang,

Tanveer,

Wang

et al. 2024

Journal of Pineal Research

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Seed germination (SG) is the first stage in a plant's life and has an immense importance in sustaining crop production. Abiotic stresses reduce SG by increasing the deterioration of seed quality, and reducing germination potential, and seed vigor. Thus, to achieve a sustainable level of crop yield, it is important to improve SG under abiotic stress conditions. Melatonin (MEL) is an important biomolecule that interplays in developmental processes and regulates many adaptive responses in plants, especially under abiotic stresses. Thus, this review specifically summarizes and discusses the mechanistic basis of MEL‐mediated SG under abiotic stresses. MEL regulates SG by regulating some stress‐specific responses and some common responses. For instance, MEL induced stress specific responses include the regulation of ionic homeostasis, and hydrolysis of storage proteins under salinity stress, regulation of C‐repeat binding factors signaling under cold stress, starch metabolism under high temperature and heavy metal stress, and activation of aquaporins and accumulation of osmolytes under drought stress. On other hand, MEL mediated regulation of gibberellins biosynthesis and abscisic acid catabolism, redox homeostasis, and Ca2+ signaling are amongst the common responses. Nonetheless factors such as endogenous MEL contents, plant species, and growth conditions also influence above‐mentioned responses. In conclusion, MEL regulates SG under abiotic stress conditions by interacting with different physiological mechanisms.

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Section: Mel Sg and Abiotic Stressorsmentioning

confidence: 99%

Melatonin as a key regulator in seed germination under abiotic stress

Wang,

Tanveer,

Wang

et al. 2024

Journal of Pineal Research

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“…NO 3 − , as the primary N source absorbed by plants, can be absorbed directly from the soil through NRT carrier protein. 28 NH 4…”

Section: Nomentioning

confidence: 99%

“…28 Additionally, NR and NiR serve as enzymes of inducible and rate limiting in NO 3 − reduction. 28 In this research, we observed that drought significantly increased the NO 3 − content and decreased the activities of NR and NiR in G. uralensis. Drought also downregulated the expression level of the gene (Glyur002875s00044415) encoding NR in G. uralensis according to transcriptomic analysis.…”

Section: Nomentioning

confidence: 99%

“…+ can be absorbed directly from the soil through AMT carrier protein or synthesized from nitrate through N assimilation. 28 Additionally, NR and NiR serve as enzymes of inducible and rate limiting in NO 3 − reduction. 28 In this research, we observed that drought significantly increased the NO 3 − content and decreased the activities of NR and NiR in G. uralensis.…”

Section: Nomentioning

confidence: 99%

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Endophytic Bacillus pumilus G5 Interacting with Silicon to Improve Drought Stress Resilience in Glycyrrhiza uralensis Fisch. by Modulating Nitrogen Absorption, Assimilation, and Metabolism Pathways

Xu,

Bai,

Peng

et al. 2024

J. Agric. Food Chem.

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Drought stress has become the primary severe threat to global agriculture production, including medicinal plants. Plant growth-promoting bacteria (PGPB) and environmentally friendly element silicon (Si) have emerged as effective methods in alleviating drought stress in various plants. Here, the effects of the plant endophytic G5 interaction with Si on regulating nitrogen absorption, assimilation, and metabolism pathways were investigated in the morphophysiological and gene attributes of Glycyrrhiza uralensis exposed to drought. Results showed that G5+Si application improved nitrogen absorption and assimilation by increasing the available nitrogen content in the soil, further improving the nitrogen utilization efficiency. Then, G5+Si triggered the accumulation of the major adjustment substances proline, γ-aminobutyric acid, putrescine, and chlorophyll, which played an important role in contributing to maintaining balance and energy supply in G. uralensis exposed to drought. These findings will provide new ideas for the combined application of PGPR and Si on both soil and plant systems in a drought habitat.

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“…DNA was extracted using HiPure Soil DNA Kits (Magen, Guangzhou, China), and the 16S rRNA genes were amplified using specific primers 341F (5′-CCTACGGGNGGCWGCAG-3′), 806R (5′-GGACTACHVGG GTATCT AAT -3 ′ ); IT S3-KYO2 (5 ′ -GATGAAGAACGYAGYRAA-3′), ITS4 (5′-TCCTCCGCTTA TTGATATGC-3′) (Cao et al, 2023). PCR amplicons were quantified using an ABI Step One Plus Real-Time PCR System (Life Technologies, Foster City, USA).…”

Section: S Rrna and Its Gene Sequencingmentioning

confidence: 99%

Insights into the impacts of autotoxic allelochemicals from rhizosphere of Atractylodes lancea on soil microenvironments

Wang

Deng²,

Duan³

et al. 2023

Front. Plant Sci.

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Atractylodes lancea suffers from continuous cropping obstacles that have become a major constraint in its cultivation, but there is still little information on the autotoxic allelochemicals and their interaction with soil microorganisms. In this study, we firstly identified the autotoxic allelochemicals from rhizosphere of A. lancea and determined their autotoxicity. Third-year continuous A. lancea cropping soils, i.e., rhizospheric soil and bulk soil, compared with control soil and one-year natural fallow soil were used to determine soil biochemical properties and microbial community. Eight allelochemicals from A. lancea roots were detected and exhibited significant autotoxicity effects on seed germination and seedling growth of A. lancea with the highest content of dibutyl phthalate in rhizospheric soil and lowest IC50 value of 2,4-di-tert-butylphenol inhibiting seed germination. The contents of soil nutrients and organic matter, pH value, and enzyme activity were altered between different soils, and the parameters of fallow soil were close to those of the unplanted soil. The PCoA analysis indicated that the community composition of both bacteria and fungi were differed significantly among the soil samples. Continuous cropping decreased OTUs numbers of bacterial and fungal communities, and natural fallow restored them. The relative abundance of Proteobacteria, Planctomycetes, and Actinobacteria decreased, and that of Acidobacteria and Ascomycota increased after three years cultivation. The LEfSe analysis identified 115 and 49 biomarkers for bacterial and fungal communities, respectively. The results suggested that natural fallow restored the structure of soil microbial community. Overall, our results revealed that autotoxic allelochemicals caused the variations of soil microenvironments and resulted in replantation problem of A. lancea, and natural fallow alleviated the soil deterioration by remodeling the rhizospheric microbial community and restoring soil biochemical properties. These findings provide important insights and clues for solving the continuous cropping problems and guiding the management of sustainable farmland.

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Melatonin and dopamine enhance waterlogging tolerance by modulating ROS scavenging, nitrogen uptake, and the rhizosphere microbial community in Malus hupehensis

Cited by 15 publications

References 57 publications

Melatonin as a key regulator in seed germination under abiotic stress

Melatonin as a key regulator in seed germination under abiotic stress

Endophytic Bacillus pumilus G5 Interacting with Silicon to Improve Drought Stress Resilience in Glycyrrhiza uralensis Fisch. by Modulating Nitrogen Absorption, Assimilation, and Metabolism Pathways

Insights into the impacts of autotoxic allelochemicals from rhizosphere of Atractylodes lancea on soil microenvironments

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