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Falade AO, Adewole KE, Ekundayo TC. Aptitude of endophytic microbes for production of novel biocontrol agents and industrial enzymes towards agro-industrial sustainability. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2021. [DOI: 10.1186/s43088-021-00146-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Abstract
Background
Endophytes have continued to receive increased attention worldwide, probably, due to the enormous biotechnological potentials spanning through various industrial sectors. This paper outlines the biotechnological potentials of endophytes in biocontrol and industrial enzyme production, and the possible contribution towards achieving agro-industrial sustainability using published articles on endophytes in both Web of Science and Scopus (1990–2020).
Main body of the abstract
This review discusses the potential of endophytes to produce novel secondary metabolites with effective biocontrol activity against insect pests and plant pathogens. More so, the aptitude of endophytes for production of a wide range of enzymes with potential applications in agriculture, energy and health is discussed in this review. Furthermore, this review highlights the emerging potentials of endophytes in the production of exopolysaccharide and fatty acids. This paper also advocates the need for bioprospecting endophytes for novel biocontrol agents against termites, which are known for causing significant damage to forest and stored products.
Short conclusion
Exploration of endophytes for biocontrol and production of biomolecules of industrial significance could contribute significantly towards agricultural and industrial sustainability.
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Tang X, Jiang J, Huang Z, Wu H, Wang J, He L, Xiong F, Zhong R, Liu J, Han Z, Tang R, He L. Sugarcane/peanut intercropping system improves the soil quality and increases the abundance of beneficial microbes. J Basic Microbiol 2021; 61:165-176. [PMID: 33448033 DOI: 10.1002/jobm.202000750] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 01/02/2021] [Indexed: 11/11/2022]
Abstract
Sugarcane/peanut intercropping is a highly efficient planting pattern in South China. However, the effects of sugarcane/peanut intercropping on soil quality need to be clarified. This study characterized the soil microbial community and the soil quality in sugarcane/peanut intercropping systems by the Illumina MiSeq platform. The results showed that the intercropping sugarcane (IS) system significantly increased the total N (TN), available N (AN), available P (AP), pH value, and acid phosphatase activity (ACP), but it had little effect on the total P (TP), total K (TK), available K (AK), organic matter (OM), urease activity, protease activity, catalase activity, and sucrase activity, compared with those in monocropping sugarcane (MS) and monocropping peanut (MP) systems. Both intercropping peanut (IP) and IS soils contained more bacteria and fungi than soils in the MP and MS fields, and the microbes identified were mainly Chloroflexi and Acidobacteria, respectively. Intercropping significantly increased the number of unique microbes in IS soils (68 genera), compared with the numbers in the IP (14), MS (17), and MP (16) systems. The redundancy analysis revealed that the abundances of culturable Acidobacteriaceae subgroup 1, nonculturable DA111, and culturable Acidobacteria were positively correlated with the measured soil quality in the intercropping system. Furthermore, the sugarcane/peanut intercropping significantly increased the economic benefit by 87.84% and 36.38%, as compared with that of the MP and MS, respectively. These results suggest that peanut and sugarcane intercropping increases the available N and P content by increasing the abundance of rhizospheric microbes, especially Acidobacteriaceae subgroup 1, DA111, and Acidobacteria.
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Affiliation(s)
- Xiumei Tang
- Agricultural College of Guangxi University, Nanning, Guangxi, China.,Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Jing Jiang
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Zhipeng Huang
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Haining Wu
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Jin Wang
- Agricultural Resource and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Liangqiong He
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Faqian Xiong
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Ruichun Zhong
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Jing Liu
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Zhuqiang Han
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Ronghua Tang
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Longfei He
- Agricultural College of Guangxi University, Nanning, Guangxi, China
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Singh R, Dubey AK. Diversity and Applications of Endophytic Actinobacteria of Plants in Special and Other Ecological Niches. Front Microbiol 2018; 9:1767. [PMID: 30135681 PMCID: PMC6092505 DOI: 10.3389/fmicb.2018.01767] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 07/16/2018] [Indexed: 12/19/2022] Open
Abstract
Actinobacteria are wide spread in nature and represent the largest taxonomic group within the domain Bacteria. They are abundant in soil and have been extensively explored for their therapeutic applications. This versatile group of bacteria has adapted to diverse ecological habitats, which has drawn considerable attention of the scientific community in recent times as it has opened up new possibilities for novel metabolites that may help in solving some of the most challenging problems of the day, for example, novel drugs for drug-resistant human pathogens, affordable means to maintain ecological balance in various habitats, and alternative practices for sustainable agriculture. Traditionally, free dwelling soil actinobacteria have been the subject of intensive research. Of late, symbiotic actinobacteria residing as endophytes within the plant tissues have generated immense interest as potential source of novel compounds, which may find applications in medicine, agriculture, and environment. In the light of these possibilities, this review focuses on the diversity of endophytic actinobacteria isolated from the plants of extreme habitats and specific ecological niches. Furthermore, an attempt has been made to assign chemical class to the compounds obtained from endophytic actinobacteria. Potential therapeutic applications of these compounds and the utility of endophytic actinobacteria in agriculture and environment are discussed.
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Affiliation(s)
| | - Ashok K. Dubey
- Division of Biological Sciences and Engineering, Netaji Subhas Institute of Technology, New Delhi, India
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Jiang ZK, Tuo L, Huang DL, Osterman IA, Tyurin AP, Liu SW, Lukyanov DA, Sergiev PV, Dontsova OA, Korshun VA, Li FN, Sun CH. Diversity, Novelty, and Antimicrobial Activity of Endophytic Actinobacteria From Mangrove Plants in Beilun Estuary National Nature Reserve of Guangxi, China. Front Microbiol 2018; 9:868. [PMID: 29780376 PMCID: PMC5945994 DOI: 10.3389/fmicb.2018.00868] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 04/16/2018] [Indexed: 11/13/2022] Open
Abstract
Endophytic actinobacteria are one of the important pharmaceutical resources and well known for producing different types of bioactive substances. Nevertheless, detection of the novelty, diversity, and bioactivity on endophytic actinobacteria isolated from mangrove plants are scarce. In this study, five different mangrove plants, Avicennia marina, Aegiceras corniculatum, Kandelia obovota, Bruguiera gymnorrhiza, and Thespesia populnea, were collected from Beilun Estuary National Nature Reserve in Guangxi Zhuang Autonomous Region, China. A total of 101 endophytic actinobacteria strains were recovered by culture-based approaches. They distributed in 7 orders, 15 families, and 28 genera including Streptomyces, Curtobacterium, Mycobacterium, Micrococcus, Brevibacterium, Kocuria, Nocardioides, Kineococcus, Kytococcus, Marmoricola, Microbacterium, Micromonospora, Actinoplanes, Agrococcus, Amnibacterium, Brachybacterium, Citricoccus, Dermacoccus, Glutamicibacter, Gordonia, Isoptericola, Janibacter, Leucobacter, Nocardia, Nocardiopsis, Pseudokineococcus, Sanguibacter, and Verrucosispora. Among them, seven strains were potentially new species of genera Nocardioides, Streptomyces, Amnibacterium, Marmoricola, and Mycobacterium. Above all, strain 8BXZ-J1 has already been characterized as a new species of the genus Marmoricola. A total of 63 out of 101 strains were chosen to screen antibacterial activities by paper-disk diffusion method and inhibitors of ribosome and DNA biosynthesis by means of a double fluorescent protein reporter. A total of 31 strains exhibited positive results in at least one antibacterial assay. Notably, strain 8BXZ-J1 and three other potential novel species, 7BMP-1, 5BQP-J3, and 1BXZ-J1, all showed antibacterial bioactivity. In addition, 21 strains showed inhibitory activities against at least one "ESKAPE" resistant pathogens. We also found that Streptomyces strains 2BBP-J2 and 1BBP-1 produce bioactive compound with inhibitory activity on protein biosynthesis as result of translation stalling. Meanwhile, Streptomyces strain 3BQP-1 produces bioactive compound inducing SOS-response due to DNA damage. In conclusion, this study proved mangrove plants harbored a high diversity of cultivable endophytic actinobacteria, which can be a promising source for discovery of novel species and bioactive compounds.
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Affiliation(s)
- Zhong-ke Jiang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Li Tuo
- Research Center for Medicine and Biology, Zunyi Medical University, Zunyi, China
| | - Da-lin Huang
- College of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Ilya A. Osterman
- Department of Chemistry, A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Anton P. Tyurin
- Gause Institute of New Antibiotics, Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - Shao-wei Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Dmitry A. Lukyanov
- Department of Chemistry, A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Petr V. Sergiev
- Department of Chemistry, A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Olga A. Dontsova
- Department of Chemistry, A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Vladimir A. Korshun
- Gause Institute of New Antibiotics, Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - Fei-na Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Cheng-hang Sun
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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