1
|
Behera PR, Behera KK, Sethi G, Prabina BJ, Bai AT, Sipra BS, Adarsh V, Das S, Behera KC, Singh L, Mishra MK, Behera M. Enhancing Agricultural Sustainability Through Rhizomicrobiome: A Review. J Basic Microbiol 2024:e2400100. [PMID: 38899609 DOI: 10.1002/jobm.202400100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/02/2024] [Accepted: 05/19/2024] [Indexed: 06/21/2024]
Abstract
Sustainable agriculture represents the responsible utilization of natural resources while safeguarding the well-being of the natural environment. It encompasses the objectives of preserving the environment, fostering economic growth, and promoting socioeconomic equality. To achieve sustainable development for humanity, it is imperative to prioritize sustainable agriculture. One significant approach to achieving this transition is the extensive utilization of microbes, which play a crucial role due to the genetic reliance of plants on the beneficial functions provided by symbiotic microbes. This review focuses on the significance of rhizospheric microbial communities, also known as the rhizomicrobiome (RM). It is a complex community of microorganisms that live in the rhizosphere and influence the plant's growth and health. It provides its host plant with various benefits related to plant growth, including biocontrol, biofertilization, phytostimulation, rhizoremediation, stress resistance, and other advantageous properties. Yet, the mechanisms by which the RM contributes to sustainable agriculture remain largely unknown. Investigating this microbial population presents a significant opportunity to advance toward sustainable agriculture. Hence, this study aims to provide an overview of the diversity and applications of RM in sustainable agriculture practices. Lately, there has been growing momentum in various areas related to rhizobiome research and its application in agriculture. This includes rhizosphere engineering, synthetic microbiome application, agent-based modeling of the rhizobiome, and metagenomic studies. So, developing bioformulations of these beneficial microorganisms that support plant growth could serve as a promising solution for future strategies aimed at achieving a new green revolution.
Collapse
Affiliation(s)
| | | | - Gangadhar Sethi
- Department of Botany, Shailabala Women's Autonomous College, Cuttack, Odisha, India
| | - B Jeberlin Prabina
- Department of Soil Science and Agricultural Chemistry, VOC AGRL College and Research Institute, Killikulam, India
| | - A Thoyajakshi Bai
- Department of Plant Pathology, College of Agriculture, Jawarharlal Nehru Krishi Vishwavidyalaya, Jabalpur, Madhya Pradesh, India
| | - B S Sipra
- Department of Botany, Ravenshaw University, Cuttack, Odisha, India
| | - Varanasi Adarsh
- School of Agriculture, GIET University, Rayagada, Odisha, India
| | - Sasmita Das
- Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | | | - Lakshmi Singh
- Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Mihir Kumar Mishra
- Department of Plant Pathology, College of Agriculture, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Maheswari Behera
- School of Agriculture, GIET University, Rayagada, Odisha, India
- Department of Botany, College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
- Department of Plant Pathology, College of Agriculture, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| |
Collapse
|
2
|
El-Saadony MT, Saad AM, Soliman SM, Salem HM, Ahmed AI, Mahmood M, El-Tahan AM, Ebrahim AAM, Abd El-Mageed TA, Negm SH, Selim S, Babalghith AO, Elrys AS, El-Tarabily KA, AbuQamar SF. Plant growth-promoting microorganisms as biocontrol agents of plant diseases: Mechanisms, challenges and future perspectives. FRONTIERS IN PLANT SCIENCE 2022; 13:923880. [PMID: 36275556 PMCID: PMC9583655 DOI: 10.3389/fpls.2022.923880] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/24/2022] [Indexed: 05/14/2023]
Abstract
Plant diseases and pests are risk factors that threaten global food security. Excessive chemical pesticide applications are commonly used to reduce the effects of plant diseases caused by bacterial and fungal pathogens. A major concern, as we strive toward more sustainable agriculture, is to increase crop yields for the increasing population. Microbial biological control agents (MBCAs) have proved their efficacy to be a green strategy to manage plant diseases, stimulate plant growth and performance, and increase yield. Besides their role in growth enhancement, plant growth-promoting rhizobacteria/fungi (PGPR/PGPF) could suppress plant diseases by producing inhibitory chemicals and inducing immune responses in plants against phytopathogens. As biofertilizers and biopesticides, PGPR and PGPF are considered as feasible, attractive economic approach for sustainable agriculture; thus, resulting in a "win-win" situation. Several PGPR and PGPF strains have been identified as effective BCAs under environmentally controlled conditions. In general, any MBCA must overcome certain challenges before it can be registered or widely utilized to control diseases/pests. Successful MBCAs offer a practical solution to improve greenhouse crop performance with reduced fertilizer inputs and chemical pesticide applications. This current review aims to fill the gap in the current knowledge of plant growth-promoting microorganisms (PGPM), provide attention about the scientific basis for policy development, and recommend further research related to the applications of PGPM used for commercial purposes.
Collapse
Affiliation(s)
- Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Ahmed M. Saad
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Soliman M. Soliman
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Heba M. Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Alshaymaa I. Ahmed
- Department of Agricultural Microbiology, Faculty of Agriculture, Beni-Suef University, Beni-Suef, Egypt
| | - Mohsin Mahmood
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, China
| | - Amira M. El-Tahan
- Plant Production Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Alia A. M. Ebrahim
- Jiangsu Key Laboratory for Microbes and Genomics, School, of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Taia A. Abd El-Mageed
- Department of Soils and Water, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Shaimaa H. Negm
- Department of Home Economic, Specific Education Faculty, Port Said University, Port Said, Egypt
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Ahmad O. Babalghith
- Medical Genetics Department, College of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ahmed S. Elrys
- Soil Science Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al-Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Synan F. AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| |
Collapse
|
3
|
Mora-Poblete F, Ballesta P, Lobos GA, Molina-Montenegro M, Gleadow R, Ahmar S, Jiménez-Aspee F. Genome-wide association study of cyanogenic glycosides, proline, sugars, and pigments in Eucalyptus cladocalyx after 18 consecutive dry summers. PHYSIOLOGIA PLANTARUM 2021; 172:1550-1569. [PMID: 33511661 DOI: 10.1111/ppl.13349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 01/07/2021] [Accepted: 01/20/2021] [Indexed: 06/12/2023]
Abstract
Natural variation of cyanogenic glycosides, soluble sugars, proline, and nondestructive optical sensing of pigments (chlorophyll, flavonols, and anthocyanins) was examined in ex situ natural populations of Eucalyptus cladocalyx F. Muell. grown under dry environmental conditions in the southern Atacama Desert, Chile. After 18 consecutive dry seasons, considerable plant-to-plant phenotypic variation for all the traits was observed in the field. For example, leaf hydrogen cyanide (HCN) concentrations varied from 0 (two acyanogenic individuals) to 1.54 mg cyanide g-1 DW. Subsequent genome-wide association study revealed associations with several genes with a known function in plants. HCN content was associated robustly with genes encoding Cytochrome P450 proteins, and with genes involved in the detoxification mechanism of HCN in cells (β-cyanoalanine synthase and cyanoalanine nitrilase). Another important finding was that sugars, proline, and pigment content were linked to genes involved in transport, biosynthesis, and/or catabolism. Estimates of genomic heritability (based on haplotypes) ranged between 0.46 and 0.84 (HCN and proline content, respectively). Proline and soluble sugars had the highest predictive ability of genomic prediction models (PA = 0.65 and PA = 0.71, respectively). PA values for HCN content and flavonols were relatively moderate, with estimates ranging from 0.44 to 0.50. These findings provide new understanding on the genetic architecture of cyanogenic capacity, and other key complex traits in cyanogenic E. cladocalyx.
Collapse
Affiliation(s)
| | - Paulina Ballesta
- Institute of Biological Sciences, Universidad de Talca, Talca, Chile
| | - Gustavo A Lobos
- Plant Breeding and Phenomic Center, Faculty of Agricultural Sciences, Universidad de Talca, Talca, Chile
| | - Marco Molina-Montenegro
- Institute of Biological Sciences, Universidad de Talca, Talca, Chile
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
| | - Roslyn Gleadow
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Sunny Ahmar
- Institute of Biological Sciences, Universidad de Talca, Talca, Chile
- College of Plant Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Felipe Jiménez-Aspee
- Department of Food Biofunctionality, Institute of Nutritional Sciences, University of Hohenheim, Stuttgart, Germany
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Chile
| |
Collapse
|
4
|
Peng Y, Li SJ, Yan J, Tang Y, Cheng JP, Gao AJ, Yao X, Ruan JJ, Xu BL. Research Progress on Phytopathogenic Fungi and Their Role as Biocontrol Agents. Front Microbiol 2021; 12:670135. [PMID: 34122383 PMCID: PMC8192705 DOI: 10.3389/fmicb.2021.670135] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 04/23/2021] [Indexed: 02/01/2023] Open
Abstract
Phytopathogenic fungi decrease crop yield and quality and cause huge losses in agricultural production. To prevent the occurrence of crop diseases and insect pests, farmers have to use many synthetic chemical pesticides. The extensive use of these pesticides has resulted in a series of environmental and ecological problems, such as the increase in resistant weed populations, soil compaction, and water pollution, which seriously affect the sustainable development of agriculture. This review discusses the main advances in research on plant-pathogenic fungi in terms of their pathogenic factors such as cell wall-degrading enzymes, toxins, growth regulators, effector proteins, and fungal viruses, as well as their application as biocontrol agents for plant pests, diseases, and weeds. Finally, further studies on plant-pathogenic fungal resources with better biocontrol effects can help find new beneficial microbial resources that can control diseases.
Collapse
Affiliation(s)
- Yan Peng
- College of Agriculture, Guizhou University, Guiyang, China
| | - Shi J Li
- College of Plant Protection, Gansu Agricultural University, Lanzhou, China
| | - Jun Yan
- Key Laboratory of Coarse Cereal Processing in Ministry of Agriculture and Rural Affairs, Schools of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Yong Tang
- College of Agriculture, Guizhou University, Guiyang, China
| | - Jian P Cheng
- College of Agriculture, Guizhou University, Guiyang, China
| | - An J Gao
- College of Agriculture, Guizhou University, Guiyang, China
| | - Xin Yao
- College of Agriculture, Guizhou University, Guiyang, China
| | - Jing J Ruan
- College of Agriculture, Guizhou University, Guiyang, China
| | - Bing L Xu
- College of Plant Protection, Gansu Agricultural University, Lanzhou, China
| |
Collapse
|
5
|
Can Anaerobic Soil Disinfestation (ASD) be a Game Changer in Tropical Agriculture? Pathogens 2021; 10:pathogens10020133. [PMID: 33525615 PMCID: PMC7911048 DOI: 10.3390/pathogens10020133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/23/2021] [Accepted: 01/25/2021] [Indexed: 11/17/2022] Open
Abstract
Anaerobic soil disinfection (ASD) has been identified as an alternative soil-borne pathogen control strategy to chemical fumigation. ASD involves the application of an easily liable carbon source followed by irrigation to field capacity and maintenance of an anaerobic condition for a certain period. A literature search undertaken on ASD found that more than 50 comprehensive research projects have been conducted since its first discovery in 2000. Most of these studies were conducted in the USA and in the Netherlands. Though the exact mechanism of ASD in pathogen control is unknown, promising results have been reported against a wide range of pathogens such as fungi, nematodes, protists, and oomycetes. However, it is interesting to note that, except for a few studies, ASD research in the developing world and in the tropical countries has lagged behind. Nevertheless, with soil quality depletion, reduction in arable lands, and exponential population growth, a drastic change to the current agricultural practices should be adapted since yield gain has reached a plateau for major staple crops. Under such circumstances, we identified the gaps and the potentials of ASD in tropical agricultural systems and proposed promising biodegradable materials.
Collapse
|
6
|
Genome Insights into the Novel Species Jejubacter calystegiae, a Plant Growth-Promoting Bacterium in Saline Conditions. DIVERSITY 2021. [DOI: 10.3390/d13010024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Jejubacter calystegiae KSNA2T, a moderately halophilic, endophytic bacterium isolated from beach morning glory (Calystegia soldanella), was determined to be a novel species in a new genus in the family Enterobacteriaceae. To gain insights into the genetic basis of the salinity stress response of strain KSNA2T, we sequenced its genome using two complementary sequencing platforms (Illumina HiSeq and PacBio RSII). The genome contains a repertoire of metabolic pathways, such as those for nitrogen, phosphorus, and some amino acid metabolism pathways. Functional annotation of the KSNA2T genome revealed several genes involved in salt tolerance pathways, such as those encoding sodium transporters, potassium transporters, and osmoprotectant enzymes. Plant growth-promoting bacteria-based experiments indicated that strain KSNA2T promotes the germination of vegetable seeds in saline conditions. Overall, the genetic and biological analyses of strain KSNA2T provide valuable insights into bacteria-mediated salt tolerance in agriculture.
Collapse
|
7
|
Manganiello G, Nicastro N, Caputo M, Zaccardelli M, Cardi T, Pane C. Functional Hyperspectral Imaging by High-Related Vegetation Indices to Track the Wide-Spectrum Trichoderma Biocontrol Activity Against Soil-Borne Diseases of Baby-Leaf Vegetables. FRONTIERS IN PLANT SCIENCE 2021; 12:630059. [PMID: 33763091 PMCID: PMC7984460 DOI: 10.3389/fpls.2021.630059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/28/2021] [Indexed: 05/10/2023]
Abstract
Research has been increasingly focusing on the selection of novel and effective biological control agents (BCAs) against soil-borne plant pathogens. The large-scale application of BCAs requires fast and robust screening methods for the evaluation of the efficacy of high numbers of candidates. In this context, the digital technologies can be applied not only for early disease detection but also for rapid performance analyses of BCAs. The present study investigates the ability of different Trichoderma spp. to contain the development of main baby-leaf vegetable pathogens and applies functional plant imaging to select the best performing antagonists against multiple pathosystems. Specifically, sixteen different Trichoderma spp. strains were characterized both in vivo and in vitro for their ability to contain R. solani, S. sclerotiorum and S. rolfsii development. All Trichoderma spp. showed, in vitro significant radial growth inhibition of the target phytopathogens. Furthermore, biocontrol trials were performed on wild rocket, green and red baby lettuces infected, respectively, with R. solani, S. sclerotiorum and S. rolfsii. The plant status was monitored by using hyperspectral imaging. Two strains, Tl35 and Ta56, belonging to T. longibrachiatum and T. atroviride species, significantly reduced disease incidence and severity (DI and DSI) in the three pathosystems. Vegetation indices, calculated on the hyperspectral data extracted from the images of plant-Trichoderma-pathogen interaction, proved to be suitable to refer about the plant health status. Four of them (OSAVI, SAVI, TSAVI and TVI) were found informative for all the pathosystems analyzed, resulting closely correlated to DSI according to significant changes in the spectral signatures among health, infected and bio-protected plants. Findings clearly indicate the possibility to promote sustainable disease management of crops by applying digital plant imaging as large-scale screening method of BCAs' effectiveness and precision biological control support.
Collapse
|