Impacts of plant secondary metabolites from conifer litter on the decomposition of Populus purdomii litter

Zhang, Xiaoxi; Wang, Boya; Liu, Zengwen

doi:10.1007/s11676-018-0766-7

Cited by 19 publications

(7 citation statements)

References 29 publications

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“…Most plant species whose litter releases terpenoids, phenolics, steroids, and aliphatic acids generally inhibit litter decomposition and/or nutrient release ( 1 , 33 ). Comparison of soil microbiome functional profiles from C. oleifera plantations of different ages at three sites revealed that metabolism is the primary KEGG level 1 function ( Fig.…”

Section: Discussionmentioning

confidence: 99%

Increased Tea Saponin Content Influences the Diversity and Function of Plantation Soil Microbiomes

et al. 2022

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Section: Discussionmentioning

confidence: 99%

Increased Tea Saponin Content Influences the Diversity and Function of Plantation Soil Microbiomes

et al. 2022

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“…SDRs have various functions in plants, some are involved in primary metabolic pathways, such as fatty acid biosynthesis, chlorophyll synthesis and degradation, while other SDRs are mainly involved in secondary metabolisms, such as steroid, alkaloid, terpenoid synthesis, plant aroma and phytohormone synthesis, etc. ( Stavrinides et al., 2018 ; Zhang et al., 2020 ). The SDR family includes -ketoacyl-ACP reductase (BKR) and enoyl-ACP reductase (ENR) in de novo fatty acid synthesis, which are involved in NADPH-dependent reduction reactions in fatty acid chain extension ( Tonfack et al., 2011 ).…”

Section: Discussionmentioning

confidence: 99%

Differential analysis of transcriptomic and metabolomic of free fatty acid rancidity process in oil palm (Elaeis guineensis) fruits of different husk types

Zhang

Martin

et al. 2023

Front. Plant Sci.

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IntroductionOil palm is the world's highest yielding oil crop and its palm oil has high nutritional value, making it an oilseed plant with important economic value and application prospects. After picking, oil palm fruits exposed to air will gradually become soft and accelerate the process of fatty acid rancidity, which will not only affect their flavor and nutritional value, but also produce substances harmful to the human body. As a result, studying the dynamic change pattern of free fatty acids and important fatty acid metabolism-related regulatory genes during oil palm fatty acid rancidity can provide a theoretical basis for improving palm oil quality and extending its shelf life.MethodsThe fruit of two shell types of oil palm, Pisifera (MP) and Tenera (MT), were used to study the changes of fruit souring at different times points of postharvesting, combined with LC-MS/MS metabolomics and RNA-seq transcriptomics techniques to analyze the dynamic changes of free fatty acids during fruit rancidity, and to find out the key enzyme genes and proteins in the process of free fatty acid synthesis and degradation according to metabolic pathways.Results and discussionMetabolomic study revealed that there were 9 different types of free fatty acids at 0 hours of postharvest, 12 different types of free fatty acids at 24 hours of postharvest, and 8 different types of free fatty acids at 36 hours of postharvest. Transcriptomic research revealed substantial changes in gene expression between the three harvest phases of MT and MP. Combined metabolomics and transcriptomics analysis results show that the expression of SDR, FATA, FATB and MFP four key enzyme genes and enzyme proteins in the rancidity of free fatty acids are significantly correlated with Palmitic acid, Stearic acid, Myristic acid and Palmitoleic acid in oil palm fruit. In terms of binding gene expression, the expression of FATA gene and MFP protein in MT and MP was consistent, and both were expressed higher in MP. FATB fluctuates unevenly in MT and MP, with the level of expression growing steadily in MT and decreasing in MP before increasing. The amount of SDR gene expression varies in opposite directions in both shell types. The above findings suggest that these four enzyme genes and enzyme proteins may play an important role in regulating fatty acid rancidity and are the key enzyme genes and enzyme proteins that cause differences in fatty acid rancidity between MT and MP and other fruit shell types. Additionally, differential metabolite and differentially expressed genes were present in the three postharvest times of MT and MP fruits, with the difference occurring 24 hours postharvest being the most notable. As a result, 24 hours postharvest revealed the most obvious difference in fatty acid tranquility between MT and MP shell types of oil palm. The results from this study offer a theoretical underpinning for the gene mining of fatty acid rancidity of various oil palm fruit shell types and the enhancement of oilseed palm acid-resistant germplasm cultivation using molecular biology methods.

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“…Further, species of A. calcoaceticus and A. oleivorans were able to degrade catechin, modulating host physiology and metabolism to improve hexadecane utilization e ciency [44]. Acinetobacter derived from wood-fed termite guts can e ciently degrade phenolic compounds by using phenol as its sole carbon source [45].…”

Section: Discussionmentioning

confidence: 99%

Increased Tea Saponin Content Influences The Diversity and Function of Plantation Soil Microbiomes

Zhang¹,

Kong²,

Li³

et al. 2021

Preprint

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Background Plant secondary metabolites (PSMs) can affect the structures and functions of soil microbiomes. However, the core bacteria associated with PSMs, and their corresponding functions have not been explored extensively. In this study, soil physicochemical properties, tea saponin contents, microbial community compositions, and microbial community functions of different-age Camellia oleifera plantation soils from representative regions were analyzed. We evaluated the effects of plantation age increase on PSM accumulation, and the subsequent consequences on the structures and functions of soil microbiomes. Results Plantation ages increase positively corresponded with accumulated tea saponin contents, with negative effects on soil physicochemical properties, and soil microbiome structures and functions. Older plantation soil microbiomes exhibited simpler structures, lower diversity, and relatively looser putative interactions based on network analysis. Clearly, the core functions of soil microbiomes transitioned to those associated with PSM metabolisms, while microbial pathways involved in cellulose degradation were inhibited. Degradation experiments further confirmed that older plantation soils exhibited the higher capacity on tea saponin degradation but poorer on furfural. Conclusions This study systematically explored the influences of PSMs on soil microbiomes via the investigation of key bacterial populations and their functional pathways. With the increase of planting years, increased tea saponin content simplified the soil microbiomes diversity, inhibited the degradation of organic matter, and enriched the genes related to the degradation of tea saponin. These findings significantly advance our understanding on PSMs-microbiome interactions and could provide fundamental and important data for sustainable management of Camellia plantations.

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Impacts of plant secondary metabolites from conifer litter on the decomposition of Populus purdomii litter

Cited by 19 publications

References 29 publications

Increased Tea Saponin Content Influences the Diversity and Function of Plantation Soil Microbiomes

Increased Tea Saponin Content Influences the Diversity and Function of Plantation Soil Microbiomes

Differential analysis of transcriptomic and metabolomic of free fatty acid rancidity process in oil palm (Elaeis guineensis) fruits of different husk types

Increased Tea Saponin Content Influences The Diversity and Function of Plantation Soil Microbiomes

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