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Wang L, Geng G, Xie H, Zhou L, He Y, Li Z, Qiao F. A Transcriptomic and Metabolomic Study on the Biosynthesis of Iridoids in Phlomoides rotata from the Qinghai-Tibet Plateau. PLANTS (BASEL, SWITZERLAND) 2024; 13:1627. [PMID: 38931059 PMCID: PMC11207590 DOI: 10.3390/plants13121627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/27/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Phlomoides rotata is a traditional Chinese herbal medicine that grows in the Qinghai-Tibet Plateau region at a 3100-5000 m altitude. Iridoid compounds are the main active compounds of the P. rotata used as medical ingredients and display anti-inflammatory, analgesic, and hepatoprotective properties. To better understand the biological mechanisms of iridoid compounds in this species, we performed a comprehensive analysis of the transcriptome and metabolome of P. rotata leaves from four different regions (3540-4270 m). Global metabolome profiling detected 575 metabolites, and 455 differentially accumulated metabolites (DAMs) were detected in P. rotata leaves from the four regions. Eight major DAMs related to iridoid metabolism in P. rotata leaves were investigated: shanzhiside methyl ester, 8-epideoxyloganic acid, barlerin, shanzhiside, geniposide, agnuside, feretoside, and catalpin. In addition, five soil physical and chemical indicators in P. rotata rhizosphere soils were analyzed. Four significant positive correlations were observed between alkaline nitrogen and geniposide, exchangeable calcium and geniposide, available potassium and shanzhiside, and available phosphorus and shanzhiside methyl ester. The transcriptome data showed 12 P. rotata cDNA libraries with 74.46 Gb of clean data, which formed 29,833 unigenes. Moreover, 78.91% of the unigenes were annotated using the eight public databases. Forty-one candidate genes representing 23 enzymes involved in the biosynthesis of iridoid compounds were identified in P. rotata leaves. Moreover, the DXS1, IDI1, 8-HGO1, and G10H2 genes associated with iridoid biosynthesis were specifically expressed in P. rotata. The integration of transcriptome and metabolome analyses highlights the crucial role of soil physical and chemical indicators and major gene expression related to iridoid metabolism pathways in P. rotata from different areas. Our findings provide a theoretical foundation for exploring the molecular mechanisms underlying iridoid compound accumulation in P. rotata.
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Affiliation(s)
- Luhao Wang
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China; (L.W.); (H.X.); (L.Z.); (Y.H.); (Z.L.)
| | - Guigong Geng
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining 810016, China;
| | - Huichun Xie
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China; (L.W.); (H.X.); (L.Z.); (Y.H.); (Z.L.)
- Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China
| | - Lianyu Zhou
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China; (L.W.); (H.X.); (L.Z.); (Y.H.); (Z.L.)
- Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China
| | - Yujiao He
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China; (L.W.); (H.X.); (L.Z.); (Y.H.); (Z.L.)
| | - Zuxia Li
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China; (L.W.); (H.X.); (L.Z.); (Y.H.); (Z.L.)
| | - Feng Qiao
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China; (L.W.); (H.X.); (L.Z.); (Y.H.); (Z.L.)
- Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China
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Duan M, Li X, Wu X, Long S, Huang H, Li Y, Liu QH, Zhu G, Feng B, Qin S, Li C, Yang H, Qin J, Chen Z, Wang Z. Dictyophora indusiata and Bacillus aryabhattai improve sugarcane yield by endogenously associating with the root and regulating flavonoid metabolism. FRONTIERS IN PLANT SCIENCE 2024; 15:1326917. [PMID: 38516657 PMCID: PMC10955060 DOI: 10.3389/fpls.2024.1326917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 02/21/2024] [Indexed: 03/23/2024]
Abstract
Introduction Endophytes play a significant role in regulating plant root development and facilitating nutrient solubilization and transportation. This association could improve plant growth. The present study has uncovered a distinct phenotype, which we refer to as "white root", arising from the intricate interactions between endophytic fungi and bacteria with the roots in a sugarcane and bamboo fungus (Dictyophora indusiata) intercropping system. Methods We investigated the mechanisms underlying the formation of this "white root" phenotype and its impact on sugarcane yield and metabolism by metabarcoding and metabolome analysis. Results and Discussion Initial analysis revealed that intercropping with D. indusiata increased sugarcane yield by enhancing the number of viable tillers compared with bagasse and no input control. Metabarcoding based on second-generation and third-generation sequencing indicated that D. indusiate and Bacillus aryabhattai dominates the fungal and bacterial composition in the "white root" phenotype of sugarcane root. The coexistence of D. indusiata and B. aryabhattai as endophytes induced plant growth-promoting metabolites in the sugarcane root system, such as lysoPC 18:1 and dihydrobenzofuran, probably contributing to increased sugarcane yield. Furthermore, the association also enhanced the metabolism of compounds, such as naringenin-7-O-glucoside (Prunin), naringenin-7-O-neohesperidoside (Naringin)*, hesperetin-7-O-neohesperidoside (Neohesperidin), epicatechin, and aromadendrin (Dihydrokaempferol), involved in flavonoid metabolism during the formation of the endophytic phenotype in the sugarcane root system. These observations suggest that the "white root" phenotype promotes sugarcane growth by activating flavonoid metabolism. This study reports an interesting phenomenon where D. indusiata, coordinate with the specific bacteria invade, forms a "white root" phenotype with sugarcane root. The study also provides new insights into using D. indusiata as a soil inoculant for promoting sugarcane growth and proposes a new approach for improve sugarcane cultivation.
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Affiliation(s)
- Mingzheng Duan
- Guangxi Academy of Agricultural Sciences, Nanning, China
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Xiang Li
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Xiaojian Wu
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Shengfeng Long
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Hairong Huang
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Yijie Li
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Qi-Huai Liu
- Laibin Academy of Agricultural Sciences, Laibin, China
| | - Guanghu Zhu
- Laibin Academy of Agricultural Sciences, Laibin, China
| | - Bin Feng
- Laibin Academy of Agricultural Sciences, Laibin, China
| | - Sunqian Qin
- Laibin Academy of Agricultural Sciences, Laibin, China
| | - Changning Li
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Hai Yang
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Jie Qin
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Zhendong Chen
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Zeping Wang
- Guangxi Academy of Agricultural Sciences, Nanning, China
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Ni Y, Cao L, Li W, Zhang Q, Feng R, Zhao Z, Zhao X. The Research Status and Prospects of Floccularia luteovirens: A Mycorrhizal Fungus with Edible Fruiting Bodies. J Fungi (Basel) 2023; 9:1071. [PMID: 37998876 PMCID: PMC10672661 DOI: 10.3390/jof9111071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/23/2023] [Accepted: 10/30/2023] [Indexed: 11/25/2023] Open
Abstract
Floccularia luteovirens, a rare wild edible and medicinal fungus, is endemic to the Tibetan plateau. However, attempts to artificially domesticate this species have not been successful, resulting in extremely limited utilization of this valuable resource. This paper presents the geographical distribution of F. luteovirens, along with its ecological and biological characteristics. It explores population relations, symbiotic relationships, soil microbial community relations, fruiting body occurrence conditions, nutritional metabolism, and reproductive patterns. The cultivation techniques, as well as the edible and medicinal value of this mushroom, are also reviewed. Through an overall analysis of the physiological characteristics and current research status of F. luteovirens, the paper discusses its development prospects. The aim is to provide a reference for other researchers and promote its artificial domestication, resource development, and utilization.
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Affiliation(s)
- Yanqing Ni
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Y.N.); (Q.Z.); (R.F.)
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China;
| | - Luping Cao
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
| | - Wensheng Li
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China;
| | - Qin Zhang
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Y.N.); (Q.Z.); (R.F.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Rencai Feng
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Y.N.); (Q.Z.); (R.F.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Zhiqiang Zhao
- Zhuoni County Agricultural Technology Extension Station, Gannan 747600, China;
| | - Xu Zhao
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Y.N.); (Q.Z.); (R.F.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
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Duan M, Yang C, Bao L, Han D, Wang H, Zhang Y, Liu H, Yang S. Morchella esculenta cultivation in fallow paddy fields and drylands affects the diversity of soil bacteria and soil chemical properties. Front Genet 2023; 14:1251695. [PMID: 37772255 PMCID: PMC10523323 DOI: 10.3389/fgene.2023.1251695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 08/31/2023] [Indexed: 09/30/2023] Open
Abstract
The properties of paddy field (DT) and dry land (HD) soil and food production can be enhanced by the cultivation of Morchella esculenta (ME) during the fallow period. However, whether ME cultivation affects the soil health and microbial diversity of paddy fields and drylands during the cultivation period remains unclear, and this has greatly limited the wider use of this cultivation model. Here, we analyzed the soil chemical properties and bacterial diversity (via metabarcoding sequencing) of DT and HD soils following ME cultivation. Our findings indicated that ME cultivation could enhance soil health. The content of soil phosphorus and potassium (K) was increased in DT soil under ME cultivation, and the K content was significantly higher in HD soil than in DT soil under ME cultivation. ME cultivation had a weak effect on alpha diversity, and ME cultivation affected the abundance of some genera of soil bacteria. The cultivation of ME might reduce the methane production capacity of DT soil and enhance the nitrogen cycling process of HD soil based on the results of functional annotation analysis. Network analysis and correlation analysis showed that Gemmatimonas, Bryobacter, and Anaeromyxobacter were the key bacterial genera regulating soil chemical properties in DT soil under ME cultivation, and Bryobacter, Bacillus, Streptomyces, and Paenarthrobacter were the key taxa associated with the accumulation of K in HD soil. The results of our study will aid future efforts to further improve this cultivation model.
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Affiliation(s)
- Mingzheng Duan
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Chengcui Yang
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Liuyuan Bao
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Duo Han
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Huaizheng Wang
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Yongzhi Zhang
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Honggao Liu
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
| | - Shunqiang Yang
- Yunnan Key Laboratory of Gastrodia Elata and Fungal Symbiotic Biology, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
- Yunnan Engineering Research Center of Green Planting and Processing of Gastrodia Elata, College of Agronomy and Life Sciences, Zhaotong University, Zhaotong, China
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Qiao F, Lu Y, Geng G, Zhou L, Chen Z, Wang L, Xie H, Qiu QS. Flavonoid synthesis in Lamiophlomis rotata from Qinghai-Tibet Plateau is influenced by soil properties, microbial community, and gene expression. JOURNAL OF PLANT PHYSIOLOGY 2023; 287:154043. [PMID: 37392527 DOI: 10.1016/j.jplph.2023.154043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 07/03/2023]
Abstract
Lamiophlomis rotata is a medicinal plant in Qinghai-Tibet Plateau, in which flavonoid compounds are the major medicinal components. However, it remains unclear how flavonoid metabolism of L. rotata is influenced by soil properties and microbial community. In this study, we collected L. rotata seedlings and rhizosphere soils from five habitats ranging from 3750 to 4270 m of altitude and analyzed the effects of habitat conditions on flavonoid metabolism. The activities of peroxidase, cellulase, and urease were increased with altitude, while those of alkaline phosphatase, alkaline protease, and sucrase were decreased with altitude. Analysis of OTUs showed that the total number of bacterial genera was higher than that of fungal genera. The highest number of fungal genera was 132, and that of bacterial genera was 33 in Batang (BT) town in Yushu County at an altitude of 3880 m, suggesting that the fungal communities may play a critical role in L. rotata rhizosphere soils. Flavonoids in leaves and roots of L. rotata shared a similar pattern, with a trend of increasing levels with altitude. The highest flavonoid content measured, 12.94 mg/g in leaves and 11.43 mg/g in roots, was from Zaduo (ZD) County at an altitude of 4208 m. Soil peroxidases affected quercetin content in leaves of L. rotata, while the fungus Sebacina affected flavonoid content in leaves and roots of L. rotata. The expression of PAL, F3'H, FLS, and FNS genes showed a declining trend in leaves with altitude, while F3H showed an increasing trend in both leaves and roots. Overall, soil physicochemical properties and microbial community affect flavonoid metabolism in L. rotata in Qinghai-Tibet Plateau. The variations in flavonoid content and gene expression as well as their associations with soil factors revealed the complexity of the growth conditions and genetic makeup in L. rotata habitats of Qinghai-Tibet Plateau.
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Affiliation(s)
- Feng Qiao
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, 810008, China; Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, Qinghai Normal University, Xining, 810008, China; Qinghai Ecosystem Observation and Research Station in the Southern Qilian Mountains, Haidong, 810500, China
| | - Yueheng Lu
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China
| | - Guigong Geng
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, 810016, China; Qinghai Ecosystem Observation and Research Station in the Southern Qilian Mountains, Haidong, 810500, China
| | - Lianyu Zhou
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, 810008, China; Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, Qinghai Normal University, Xining, 810008, China; Qinghai Ecosystem Observation and Research Station in the Southern Qilian Mountains, Haidong, 810500, China
| | - Zhenning Chen
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, 810008, China; Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, Qinghai Normal University, Xining, 810008, China
| | - Luhao Wang
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China
| | - Huichun Xie
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, 810008, China; Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, Qinghai Normal University, Xining, 810008, China; Qinghai Ecosystem Observation and Research Station in the Southern Qilian Mountains, Haidong, 810500, China.
| | - Quan-Sheng Qiu
- School of Life Sciences, Qinghai Normal University, Xining, 810008, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, 810008, China; MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, 730000, China; College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Lanzhou University, Lanzhou, Gansu, 730000, China.
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Xue X, Chen R, Xu C, Zhang C, Dong L, Zhao X, Wang X. Apple-marigold intercropping improves soil properties by changing soil metabolomics and bacterial community structures. Front Microbiol 2023; 14:1195985. [PMID: 37455738 PMCID: PMC10343436 DOI: 10.3389/fmicb.2023.1195985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Marigold can protect crops against soil-borne diseases. However, the effects of intercropping with marigold on apple rhizosphere soils are not known. In this study, we investigated the metabolite profiles and bacterial community structures in rhizosphere soils of the apple-marigold intercropping system by high-throughput sequencing and soil metabolomics. The results show that intercropping marigold could significantly enhance soil moisture, nitrogen, and enzyme activities compared with clean tillage. The soil metabolite profiles and the soil bacterial community structures in the rhizosphere soils were different between the inter-and mono-cropping systems. Among nine metabolites, carbohydrates were more increased in the intercropping system than in the monocropping system. Pathway enrichment analysis revealed that the greatest differential, in terms of metabolic pathway, was starch and sucrose metabolism. Moreover, intercropping marigold significantly increased the relative abundance of plant growth promoting bacteria in rhizosphere soils, such as Rhizobiales, Pseudomonadales, and Bacillales. These results indicate that marigold intercropping positively affected the apple orchard's soil quality and may provide a new intercropping technique to improve soil fertility in orchards and promote plant growth.
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Affiliation(s)
- Xiaomin Xue
- Shandong Institute of Pomology, Tai’an, China
| | - Ru Chen
- Shandong Institute of Pomology, Tai’an, China
| | - Chao Xu
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | | | - Lijuan Dong
- Taishan Forestry Research Institute, Tai’an, China
| | - Xianyan Zhao
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Xiaohan Wang
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
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Duan M, Li Y, Zhu G, Wu X, Huang H, Qin J, Long S, Li X, Feng B, Qin S, Liu QH, Li C, Wang L, Li Q, He T, Wang Z. Soil chemistry, metabarcoding, and metabolome analyses reveal that a sugarcane- Dictyophora indusiata intercropping system can enhance soil health by reducing soil nitrogen loss. Front Microbiol 2023; 14:1193990. [PMID: 37303785 PMCID: PMC10249477 DOI: 10.3389/fmicb.2023.1193990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 05/02/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction Greater amounts of fertilizer are applied every year to meet the growing demand for food. Sugarcane is one of the important food sources for human beings. Methods Here, we evaluated the effects of a sugarcane-Dictyophora indusiata (DI) intercropping system on soil health by conducting an experiment with three different treatments: (1) bagasse application (BAS process), (2) bagasse + DI (DIS process), and (3) the control (CK). We then analyzed soil chemistry, the diversity of soil bacteria and fungi, and the composition of metabolites to clarify the mechanism underlying the effects of this intercropping system on soil properties. Results and discussion Soil chemistry analyses revealed that the content of several soil nutrients such as nitrogen (N) and phosphorus (P) was higher in the BAS process than in the CK. In the DIS process, a large amount of soil P was consumed by DI. At the same time, the urease activity was inhibited, thus slowing down the loss of soil in the DI process, while the activity of other enzymes such as β-glucosidase and laccase was increased. It was also noticed that the content of lanthanum and calcium was higher in the BAS process than in the other treatments, and DI did not significantly alter the concentrations of these soil metal ions. Bacterial diversity was higher in the BAS process than in the other treatments, and fungal diversity was lower in the DIS process than in the other treatments. The soil metabolome analysis revealed that the abundance of carbohydrate metabolites was significantly lower in the BAS process than in the CK and the DIS process. The abundance of D(+)-talose was correlated with the content of soil nutrients. Path analysis revealed that the content of soil nutrients in the DIS process was mainly affected by fungi, bacteria, the soil metabolome, and soil enzyme activity. Our findings indicate that the sugarcane-DIS intercropping system can enhance soil health.
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Affiliation(s)
- Mingzheng Duan
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
- Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Yijie Li
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
| | - Guanghu Zhu
- Center for Applied Mathematics of Guangxi (GUET), Guilin, China
| | - Xiaojian Wu
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Hairong Huang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
| | - Jie Qin
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
| | - Shengfeng Long
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Xiang Li
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
| | - Bin Feng
- Laibin Academy of Agricultural Sciences, Laibin, China
| | - Sunqian Qin
- Laibin Academy of Agricultural Sciences, Laibin, China
| | - Qi-Huai Liu
- Center for Applied Mathematics of Guangxi (GUET), Guilin, China
| | - Changning Li
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
| | - Lingqiang Wang
- Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Qing Li
- Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Tieguang He
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Zeping Wang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Science/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture, Nanning, China
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Clerissi C, Chaïb S, Raviglione D, Espiau B, Bertrand C, Meyer JY. Metabarcoding and Metabolomics Reveal the Effect of the Invasive Alien Tree Miconia calvescens DC. on Soil Diversity on the Tropical Island of Mo'orea (French Polynesia). Microorganisms 2023; 11:microorganisms11040832. [PMID: 37110253 PMCID: PMC10144827 DOI: 10.3390/microorganisms11040832] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 04/29/2023] Open
Abstract
Miconia calvescens is a dominant invasive alien tree species that threatens several endemic plants in French Polynesia (South Pacific). While most analyses have been performed at the scale of plant communities, the effects on the rhizosphere have not been described so far. However, this compartment can be involved in plant fitness through inhibitory activities, nutritive exchanges, and communication with other organisms. In particular, it was not known whether M. calvescens forms specific associations with soil organisms or has a specific chemical composition of secondary metabolites. To tackle these issues, the rhizosphere of six plant species was sampled on the tropical island of Mo'orea in French Polynesia at both the seedling and tree stages. The diversity of soil organisms (bacteria, microeukaryotes, and metazoa) and of secondary metabolites was studied using high-throughput technologies (metabarcoding and metabolomics, respectively). We found that trees had higher effects on soil diversity than seedlings. Moreover, M. calvescens showed a specific association with microeukaryotes of the Cryptomycota family at the tree stage. This family was positively correlated with the terpenoids found in the soil. Many terpenoids were also found within the roots of M. calvescens, suggesting that these molecules were probably produced by the plant and favored the presence of Cryptomycota. Both terpenoids and Cryptomycota were thus specific chemicals and biomarkers of M. calvescens. Additional studies must be performed in the future to better understand if they contribute to the success of this invasive tree.
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Affiliation(s)
- Camille Clerissi
- PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, Université de Perpignan, 52 Avenue Paul Alduy, Cedex, 66860 Perpignan, France
| | - Slimane Chaïb
- PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, Université de Perpignan, 52 Avenue Paul Alduy, Cedex, 66860 Perpignan, France
| | - Delphine Raviglione
- PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, Université de Perpignan, 52 Avenue Paul Alduy, Cedex, 66860 Perpignan, France
| | - Benoit Espiau
- PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, B.P. 1013, 98729 Papetoai, Mo'orea, France
| | - Cédric Bertrand
- PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, Université de Perpignan, 52 Avenue Paul Alduy, Cedex, 66860 Perpignan, France
| | - Jean-Yves Meyer
- Délégation à la Recherche, B.P. 20981, 98713 Papeete, Tahiti, France
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Ma L, Duan M, He Z, Zhang Y, Chen Y, Li B, Rao MJ, Hu L, Wang L. Sugarcane Wax Metabolites and Their Toxicity to Silkworms. Life (Basel) 2023; 13:life13020286. [PMID: 36836643 PMCID: PMC9959631 DOI: 10.3390/life13020286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/17/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Sugarcane wax has the potential to be utilized as a novel natural insecticide, which could help to reduce the large yield losses caused by agricultural pests. By employing the gas chromatography-mass spectrometry (GC-MS) approach, we conducted a study to analyze the composition of epicuticular wax from the rind of the sugarcane variety YT71210. A total of 157 metabolites, categorized into 15 classes, were identified, with naphthalene, a metabolite with insect-resistant properties, being the most prevalent. The feeding trial experiment suggested that sugarcane wax is toxic to silkworms by impacting the internal organs. Intestinal microbial diversity analysis suggested that the abundance of Enterococcus genus was significantly increased in both ordure and gut of silkworm after wax treatment. The results indicated that the feeding of wax has an adverse effect on the gut microbial composition of silkworms. Our findings lay a foundation for the efficacy of sugarcane waxes as a valuable natural insecticide and for the prediction of promising sugarcane varieties with insect resistance.
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Affiliation(s)
- Li Ma
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Mingzheng Duan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Ziwei He
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Yu Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Yiting Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Bo Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Muhammad Junaid Rao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Lihua Hu
- College of Life Science and Technology, Guangxi University, Nanning 530004, China
- Correspondence: (L.H.); (L.W.)
| | - Lingqiang Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, 100 Daxue Rd., Nanning 530004, China
- Correspondence: (L.H.); (L.W.)
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Metabarcoding and Metabolome Analyses Reveal Mechanisms of Leymus chinensis Growth Promotion by Fairy Ring of Leucocalocybe mongolica. J Fungi (Basel) 2022; 8:jof8090944. [PMID: 36135669 PMCID: PMC9505569 DOI: 10.3390/jof8090944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Fairy rings are a unique ecological phenomenon caused by the growth of the fungal mycelium in the soil. Fairy rings formed by Leucocalocybe mongolica (LM) are generally distributed in the Mongolian Plateau, where they promote plant growth without fertilization and alleviate fertilizer use. We previously investigated the soil factors regulating growth promotion in a fairy ring ecosystem; however, the aspects of the plant (Leymus chinensis, LC) that promote growth have not been explored. Therefore, the present study investigated the endophyte diversity and metabolome of LC in an LM fairy ring ecosystem. We analyzed the leaf and root samples of LC from the DARK (FR) and OUT (CK) zones. The fairy rings significantly improved the fungal diversity of roots and leaves and the bacterial diversity of leaves in the FR zone. Ralstonia was the dominant bacteria detected in the LC leaves. In addition, Marasmius, another fairy ring fungal genus, was also detected with a high abundance in the roots of the FR zone. Furthermore, widely targeted metabolome analysis combined with KEGG annotation identified 1011 novel metabolites from the leaves and roots of LC and seven pathways significantly regulated by the fairy ring in the FR zone. The fairy ring ecosystem significantly downregulated the flavonoid metabolism in the leaves and roots of LC. The correlation analysis found Ralstonia is a potential regulatory factor of flavonoid biosynthesis in LC. In addition, salicylic acid and jasmonic acid were found upregulated in the leaves, probably related to Marasmius enrichment. Thus, the study details plant factors associated with enhanced growth in an LM fairy ring ecosystem. These findings lay a theoretical foundation for developing the fairy ring ecosystem in an agricultural system.
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