Effects of drought–re-watering–drought on the photosynthesis physiology and secondary metabolite production of Bupleurum chinense DC.

Yang, Linlin; Yu, Zujiang; Qi, Zhang; Cheng, Lin; Han, Mei; Ren, Yaoyao; Yang, Limin

doi:10.1007/s00299-019-02436-8

Cited by 44 publications

(30 citation statements)

References 55 publications

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“…SOD-scavenged O 2 − works as a catalyzer of the disproportionation reaction of O 2 − in the body for the production of O 2 and H 2 O 2 . In this study, the expressions of SOD increased in shade-drying vs. fresh and smoke-drying vs. fresh, which was similar to the research results using Bupleurum under osmotic stress (Yang et al, 2019). According to previous reports, up-regulated expression of 3-ketoacyl-CoA thiolase 2 (ACCA), peroxisomal coenzyme A diphosphatase (NUDT7), and long-chain acyl-CoA synthetase (ACSL) enhances abiotic stress resistance in plants (Ge et al, 2007;Pye et al, 2010;Zhang et al, 2020).…”

Section: Proteins Related To Stress Response and Defensesupporting

confidence: 90%

Label-Free Proteomic Analysis of Smoke-Drying and Shade-Drying Processes of Postharvest Rhubarb: A Comparative Study

Liang

Chen

et al. 2021

Front. Plant Sci.

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Postharvest processing plays a very important role in improving the quality of traditional Chinese medicine. According to previous studies, smoke-drying could significantly promote the accumulation of the bioactive components and pharmacological activities of rhubarb, but so far, the molecular mechanism has not been studied yet. In this research, to study the molecular mechanisms of postharvest processing for rhubarb during shade-drying and smoke-drying, label-free proteomic analyses were conducted. In total, 1,927 differentially abundant proteins (DAPs) were identified from rhubarb samples treated by different drying methods. These DAPs were mainly involved in response and defense, signal transduction, starch, carbohydrate and energy metabolism, and anthraquinone and phenolic acid biosynthesis. Smoke-drying significantly enhanced the expression of proteins involved in these metabolic pathways. Accordingly, the molecular mechanism of the accumulation of effective ingredients of rhubarb was clarified, which provided a novel insight into the biosynthesis of active ingredients that occur during the rhubarb dry process.

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Section: Proteins Related To Stress Response and Defensesupporting

confidence: 90%

Label-Free Proteomic Analysis of Smoke-Drying and Shade-Drying Processes of Postharvest Rhubarb: A Comparative Study

Liang

Chen

et al. 2021

Front. Plant Sci.

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“…2A, C), a phenomenon considered a classic hallmark of halophytes [41]. Since high salt stress inhibits protein synthesis in salt-sensitive crop varieties [42], the soluble protein concentrations of SS 212 in our study remained almost constant under salt stress (Fig. 2B).…”

Section: Discussionsupporting

confidence: 51%

Unravelling the Strategies for Cell wall Biosynthesis used by Salt-Tolerant Proso Millet (Panicum miliaceum L.) under Salt Stress: From Root Structure to Molecular Mechanism

Yuan

Liu

et al. 2021

Preprint

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Background: Considering the twin global problems of increasingly serious energy shortage and effects of salt stress on biofuel plants, breeding of salt-resistant biofuel plant and the discovery of mechanisms for biomass accumulation under salt stress is necessary for energy shortage. Proso millet (Panicum miliaceum L.) is very resilient to abiotic stress, especially to land degradation caused by soil salinization, and its promising as dedicated bioenergy crops for the production of renewable fuels and forage, due to its high photosynthetic efficiency C4 plant and ability to grow in a range of environmental conditions. However, the mechanisms by which the roots of proso millet adapt and tolerate salt-stress are obscure.Results: In this study, plants of a salt-sensitive cultivar (SS 212) and a salt-tolerant cultivar (ST 47) of proso millet were exposed to severe salt stress and subsequent re-watering. ST 47 exhibited greater salt tolerance and faster recovery than SS 212, as evidenced by higher increases in total root length (TRL), root surface area (RSA), root tip number (RTN), biomass. Moreover, microstructural analysis showed that relative to SS 212, the roots of ST 47 could maintain more intact internal structures, and thicker cell wall under salt stress, thereby stronger resistance to salt toxicity and maintenance of growth. Digital RNA sequence analysis suggested more genes involved in salt stress resistance were induced in ST 47 than in SS 212. In ST 47 also, re-watering restored most genes that had been induced by salt stress. Results of the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analysis revealed that ST 47 maintained better Na+/ K+ balance to resist Na+ toxicity via a higher capability to restrict Na+ uptake, vacuolar Na+ sequestration, and Na+ exclusion. The mechanism for cell wall biosynthesis in cultivar ST 47 involved the promotion of cell wall composition changes, via efficient regulation of galactose metabolism and biosynthesis of cellulose and phenylpropanoids. Conclusions: Overall, this study provides valuable salt-resistant biofuel resources and mechanisms for relieving the world energy shortage, which could be applied for the rehabilitation of saline lands.

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“…For example, recent advances in applications of this technique in microbial studies using the imaging MS have made it possible to measure interactions in microbial colonies that produce SMs [292, 293], and at the same time determine and visualize spatial distribution of these metabolites in the colonies analyzed. In a study on metabolic interaction between colonies of Streptomyces coelicolor and Bacillus subtilis , Yang et al [294] applied MALDI-TOF-imaging MS and succeeded in characterizing chemical identity and spatial distribution of compounds produced by the interacting and individual colonies through metabolic interaction between colonies of the two species when grown in proximity on agar plates. Despite this and many more other MS applications, many challenges still exists.…”

Section: Application Of Global Metabolic Analysis Using Lc–ms In Decimentioning

confidence: 99%

Stress and defense responses in plant secondary metabolites production

2019

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In the growth condition(s) of plants, numerous secondary metabolites (SMs) are produced by them to serve variety of cellular functions essential for physiological processes, and recent increasing evidences have implicated stress and defense response signaling in their production. The type and concentration(s) of secondary molecule(s) produced by a plant are determined by the species, genotype, physiology, developmental stage and environmental factors during growth. This suggests the physiological adaptive responses employed by various plant taxonomic groups in coping with the stress and defensive stimuli. The past recent decades had witnessed renewed interest to study abiotic factors that influence secondary metabolism during in vitro and in vivo growth of plants. Application of molecular biology tools and techniques are facilitating understanding the signaling processes and pathways involved in the SMs production at subcellular, cellular, organ and whole plant systems during in vivo and in vitro growth, with application in metabolic engineering of biosynthetic pathways intermediates.

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Effects of drought–re-watering–drought on the photosynthesis physiology and secondary metabolite production of Bupleurum chinense DC.

Cited by 44 publications

References 55 publications

Label-Free Proteomic Analysis of Smoke-Drying and Shade-Drying Processes of Postharvest Rhubarb: A Comparative Study

Label-Free Proteomic Analysis of Smoke-Drying and Shade-Drying Processes of Postharvest Rhubarb: A Comparative Study

Unravelling the Strategies for Cell wall Biosynthesis used by Salt-Tolerant Proso Millet (Panicum miliaceum L.) under Salt Stress: From Root Structure to Molecular Mechanism

Stress and defense responses in plant secondary metabolites production

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