Microbial Enzymes in Biocontrol of Phytopathogens

Mishra, Priya; Mishra, Jitendra; Dwivedi, S.K.; Arora, Naveen Kumar

doi:10.1007/978-981-15-1710-5_10

Cited by 31 publications

(28 citation statements)

References 152 publications

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“…Secretion of the lytic enzymes is considered to be an effective way to prevent plant pathogens near the rhizosphere, among all known biological control mechanisms [ 67 ]. A single colony of the activated biocontrol bacteria was selected and connected to the chitin assay plate, prepared as previously described by Lau et al [ 68 ].…”

Section: Methodsmentioning

confidence: 99%

Antagonism of Rhizosphere Streptomyces yangpuensis CM253 against the Pathogenic Fungi Causing Corm Rot in Saffron (Crocus sativus L.)

Wang

et al. 2022

Pathogens

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Plant diseases lead to a significant decline in the output and quality of Chinese herbal medicines. Actinomycetes play a vital role in the rhizosphere ecosystem. This is especially true for Streptomyces, which have become a valuable biological control resource because of their advantages in producing various secondary metabolites with novel structures and remarkable biological activities. The purpose of this study was to isolate an effective antagonistic actinomycete against the pathogen of corm rot in saffron. An antagonistic actinomycete, CM253, was screened from the rhizosphere soil samples of Crocus sativus, by plate co-culture with four pathogenic fungi (Fusarium oxysporum, Fusarium solani, Penicillium citreosulfuratum, and Penicillium citrinum). CM253 inhibited the growth and development of F. oxysporum hyphae by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Furthermore, by analyzing the degrading enzyme, the growth-promoting performance, and the whole genome of strain CM253, it was identified as Streptomyces yangpuensis, which produces NH3, protease, glucanase, cellulase, IAA, and ACC deaminase. In addition, 24 secondary metabolite synthesis gene clusters were predicted in antiSMASH. We identified genes encoding 2,3-butanediol; methionine; isoprene (metH, mmuM, ispEFH, gcpE, idi, and ilvABCDEH); biofilm formation; and colonization (upp, rfbBC, efp, aftA, pssA, pilD, fliA, and dhaM). Above all, S. yangpuensis CM253 showed the potential for future development as a biocontrol agent.

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Section: Methodsmentioning

confidence: 99%

Antagonism of Rhizosphere Streptomyces yangpuensis CM253 against the Pathogenic Fungi Causing Corm Rot in Saffron (Crocus sativus L.)

Wang

et al. 2022

Pathogens

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“…Many microorganism like Trichoderma spp., Penicillium, Bacillus spp., Rhizobium and Pseudomonas spp. have been reported to function as plant growth promoting fungi (PGPF) and plant growth promoting rhizobacteria (PGPR) in addition to their potentiality to boost defense mechanism [70,71]. Among the fungi, Trichoderma is often considered as universal biocontrol agent due to it extra ordinary function such as mycoparsitism, antibiosis, production of extracellular enzyme, competition for space and nutrients etc.…”

Section: Disease Control Through Sustainable Approachmentioning

confidence: 99%

“…and Penicillium spp. [71]. Various strains of Bacillus has been found to produce chitinase and glucanase for biocontrol mechanism against Fusarium verticilloides [76].…”

Section: Production Of Extracellular Enzymementioning

confidence: 99%

Fusarium Disease of Maize and Its Management through Sustainable Approach

Tiru¹,

Mandal²,

Chakraborty³

et al. 2022

Fusarium - An Overview of the Genus

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Fusarium causing disease in maize is probably the one of the most serious diseases among the crop plants all over the world. It not only damages the maize plant, reduces its potential yield and its nutritional values but imposes threatening to the human life through the induction of mycotoxin development. F. graminearum and F. moniliforme syn. Fusarium verticillioides are two important maize pathogens that cause substantial damage to its ear, stalk and foliage, causing contamination of grains with mycotoxins. Since conventional methods of controlling the diseases including the chemical methods proved not enough for total control of the disease with creating situation even worse for our surroundings, the application of PGPR and PGPF can play significant role to control the damage caused by Fusarium.

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“…Humans have been unwittingly benefited from the catalytic properties of enzymes for thousands of years in many processes such as the fermentation of bread, yogurt and cheese, the production of various alcoholic beverages and leather tanning (Kirk, 2002;Cherry and Fidantsef, 2003). It is reported that, the enzyme market reached annually 5.5 billion dollars in 2018, all over the world and it is estimated that this figure will reach 7 billion dollars by 2023 (Mishra et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Searching for Versatile Polysaccharide-Degrading Alkali-tolerant or Alkaliphilic Bacillus Strains

Bayram

Aydoğan

2022

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The plant-derived polysaccharides (Cellulose, xylose and amylose, etc.) are the most abundant renewable raw materials in nature. Cellulose and xylose are the predominant carbohydrate polymer components of the plant cell walls and the most abundant biopolymers in the world. Another plant-derived polysaccharide, starch is found in plant tubers, roots and seed endosperms as a major carbohydrate reserve. In this study, it was aimed to find multi-enzyme producer bacteria strains in terms of industrially important enzymes such as cellulase, xylanase and amylase. For this purpose, isolated Bacillus strains from different samples were qualitatively evaluated for cellulase, xylanase and amylase enzyme production potentials. The isolates that have the highest enzyme activity were selected for biochemical tests, molecular and phenotypic characterization. As a result of these characterization process, SB57, SB104, SB155, SB178, SB197 and SB199 strains were identified as Bacillus pumilus and SB118, SB138 strains were identified as Bacillus safensis. In addition to these strains, SB120 and SB147 strains were identified as Bacillus aerius and Bacillus licheniformis respectively. 16S rDNA sequence analysis results of these Bacillus strains were deposited in NCBI GenBank® under accession number KT371465 -KT371474 respectively.

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Microbial Enzymes in Biocontrol of Phytopathogens

Cited by 31 publications

References 152 publications

Antagonism of Rhizosphere Streptomyces yangpuensis CM253 against the Pathogenic Fungi Causing Corm Rot in Saffron (Crocus sativus L.)

Antagonism of Rhizosphere Streptomyces yangpuensis CM253 against the Pathogenic Fungi Causing Corm Rot in Saffron (Crocus sativus L.)

Fusarium Disease of Maize and Its Management through Sustainable Approach

Searching for Versatile Polysaccharide-Degrading Alkali-tolerant or Alkaliphilic Bacillus Strains

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