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Taechowisan, Thongchai; Peberdy, John F.; Lumyong, Saisamorn

doi:10.1023/a:1023901107182

Cited by 185 publications

(30 citation statements)

References 22 publications

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“…ZoA1 showed promising antifungal activity against Pythium myriotylum. Similar results have been reported by various authors using extracts from endophytic actinomycetes (Taechowisan et al 2003;Verma et al 2009). …”

Section: Screening Of Antimicrobial Activitysupporting

confidence: 92%

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Endophytic Nocardiopsis sp. from Zingiber officinale with both antiphytopathogenic mechanisms and antibiofilm activity against clinical isolates

2017

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Novel and potential antimicrobial compounds are essential to tackle the frequently emerging multidrugresistant pathogens and also to develop environment friendly agricultural practices. In the current study, endophytic actinomycetes from rhizome of Zingiber officinale were explored in terms of its diversity and bioactive properties. Fourteen different organisms were isolated, identified and screened for activity against Pythium myriotylum and human clinical pathogens. Among these, Nocardiopsis sp. ZoA1 was found to have highest inhibition with excellent antibacterial effects compared to standard antibiotics. Remarkable antibiofilm property was also shown by the extract of ZoA1. Its antifungal activity against Pythium and other common phytopathogens was also found to be promising as confirmed by scanning electron microscopic analysis. By PCR-based sequence analysis of phz E gene, the organism was confirmed for the genetic basis of phenazine biosynthesis. Further GC-MS analysis of Nocardiopsis sp. revealed the presence of various compounds including Phenol, 2,4-bis (1,1-dimethylethyl) and trans cinnamic acid which can have significant role in the observed result. The current study is the first report on endophytic Nocardiopsis sp. from ginger with promising applications. In vivo treatment of Nocardiopsis sp. on ginger rhizome has revealed its inhibition towards the colonization of P. myriotylum which makes the study to have promises to manage the severe diseases in ginger like rhizome rot.

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Section: Screening Of Antimicrobial Activitysupporting

confidence: 92%

“…Streptomyces sp. from Z. officinale were reported with inhibitory activity against Colletotrichum musae, and Fusarium oxysporum (Taechowisan et al 2003). But only limited reports are there on the effect of actinomycetes on Pythium myriotylum which make this result highly significant.…”

Section: Antifungal Activity Analysis Of Nocardiopsis Sp Zoa1 Againsmentioning

confidence: 99%

Endophytic Nocardiopsis sp. from Zingiber officinale with both antiphytopathogenic mechanisms and antibiofilm activity against clinical isolates

2017

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“…Actinobacteria have also been reported to secrete enzymes that degrade the mycelial cell walls of fungal parasites, as described in several studies (556,(562)(563)(564)(565). Several chitinolytic enzymes have been identified in some species of Actinobacteria, including S. antibioticus (566), S. aureofaciens (566), S. lividens (567), S. plicatus (568), S. halsteii AJ-7 (569), and S. lydicus WYEC108 (570). A biofungicide containing Streptomyces lydicus WYEC 108 was approved by AG (Natural Industries Inc., TX, USA) and registered in 2004 as Actinovate soluble (EPA registration number 73314-1).…”

Section: Interactions Between Actinobacteria and Plantsmentioning

confidence: 93%

“…Endophytic Actinobacteria have been isolated from a wide variety of plants. The most frequently observed species belong to the genera Microbispora, Nocardia, Micromonospora, and Streptomyces, the most abundant (566,593). Unlike pathogenic streptomycetes, endophytic species persist inside the plant host for long periods of time without causing observable disorder symptoms and lack known virulence determinants shared with phytopathogenic Streptomyces spp.…”

Section: Interactions Between Actinobacteria and Plantsmentioning

confidence: 99%

Taxonomy, Physiology, and Natural Products of Actinobacteria

Barka

Vatsa

Sanchez

et al. 2016

Microbiol Mol Biol Rev

1,534

1,048

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SUMMARYActinobacteriaare Gram-positive bacteria with high G+C DNA content that constitute one of the largest bacterial phyla, and they are ubiquitously distributed in both aquatic and terrestrial ecosystems. ManyActinobacteriahave a mycelial lifestyle and undergo complex morphological differentiation. They also have an extensive secondary metabolism and produce about two-thirds of all naturally derived antibiotics in current clinical use, as well as many anticancer, anthelmintic, and antifungal compounds. Consequently, these bacteria are of major importance for biotechnology, medicine, and agriculture.Actinobacteriaplay diverse roles in their associations with various higher organisms, since their members have adopted different lifestyles, and the phylum includes pathogens (notably, species ofCorynebacterium,Mycobacterium,Nocardia,Propionibacterium, andTropheryma), soil inhabitants (e.g.,MicromonosporaandStreptomycesspecies), plant commensals (e.g.,Frankiaspp.), and gastrointestinal commensals (Bifidobacteriumspp.).Actinobacteriaalso play an important role as symbionts and as pathogens in plant-associated microbial communities. This review presents an update on the biology of this important bacterial phylum.

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“…cucumerium in PDA medium and that 84% of these isolates belonged to the genus Streptomyces. Taechowisan et al (2003) performed a direct comparison of endophytic actinomycetes cultures with antifungal activity and reported that most of the isolates also belong to the genus Streptomyces.…”

Section: Antifunmentioning

confidence: 99%

Evaluation of the Antifungal Activity of Streptomyces sp. on Bipolaris sorokiniana and the Growth Promotion of Wheat Plants

Monteiro¹,

Borba²,

Sand³

2017

JAS

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Streptomyces sp. R18(6) and Streptomyces sp. 6(4) strains were evaluated for their ability to control brown spot and common root rot caused by Bipolaris sorokiniana in wheat crops. The antifungal activity of these isolates was tested using a double-layer assay and culture pairing at 28 °C. Physiological and enzymatic activity performed through siderophore, indole-3-acetic acid, nitrogen fixation and phosphate solubilization tests. The biocontrol of the disease and growth-promoting efficiency of wheat seedlings were assessed using in vivo assays in a greenhouse. In the culture pairing assays, both strains inhibited B. sorokiniana mycelial growth, while in the double-layer only Streptomyces sp. R18(6). Streptomyces sp. 6(4) produced auxin, siderophores, fixed nitrogen and solubilized phosphate, whereas R18(6) did not produce siderophores. In the greenhouse assays, strain R18(6) showed statistical differences in shoot dry mass and root dry mass compared with those of strain 6(4) in the presence of the phytopathogen (P ≤ 0.05), and these results were more evident when the environmental temperature was higher. In the absence of the phytopathogen, Streptomyces sp. 6(4) strain increased the root dry mass compared with that of the control during the same period. Therefore, these isolates can potentially control root rot and brown spotting and may promote the growth of wheat plants.

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Cited by 185 publications

References 22 publications

Endophytic Nocardiopsis sp. from Zingiber officinale with both antiphytopathogenic mechanisms and antibiofilm activity against clinical isolates

Endophytic Nocardiopsis sp. from Zingiber officinale with both antiphytopathogenic mechanisms and antibiofilm activity against clinical isolates

Taxonomy, Physiology, and Natural Products of Actinobacteria

Evaluation of the Antifungal Activity of Streptomyces sp. on Bipolaris sorokiniana and the Growth Promotion of Wheat Plants

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