Microbial Bioactive Compounds Produced by Endophytes (Bacteria and Fungi) and Their Uses in Plant Health

2021 ◽  
pp. 285-318
Author(s):  
Abdul Basit ◽  
Syed Tanveer Shah ◽  
Izhar Ullah ◽  
Inayat Ullah ◽  
Heba I. Mohamed
Keyword(s):  
Bioactive Compounds ◽  
Plant Health ◽  
Bacteria And Fungi

scholarly journals Detecting and prioritizing biosynthetic gene clusters for bioactive compounds in bacteria and fungi

2019 ◽  
Vol 103 (8) ◽  
pp. 3277-3287 ◽  
Author(s):  
Phuong Nguyen Tran ◽  
Ming-Ren Yen ◽  
Chen-Yu Chiang ◽  
Hsiao-Ching Lin ◽  
Pao-Yang Chen
Keyword(s):  
Bioactive Compounds ◽  
Gene Clusters ◽  
Biosynthetic Gene ◽  
Biosynthetic Gene Clusters ◽  
Bacteria And Fungi

Bioactive Compounds Produced by Biocontrol Agents Driving Plant Health

2019 ◽  
pp. 337-374 ◽  
Author(s):  
Miguel O. P. Navarro ◽  
Amanda C. M. Piva ◽  
Ane S. Simionato ◽  
Flávia R. Spago ◽  
Fluvio Modolon ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Biocontrol Agents ◽  
Plant Health

The Himanimides, New Bioactive Compounds From Serpula Himantoides (Fr.)Karst.

2002 ◽  
Vol 57 (3-4) ◽  
pp. 257-262 ◽  
Author(s):  
Pedro Aqueveque ◽  
Timm Anke ◽  
Olov Sterner
Keyword(s):  
Bioactive Compounds ◽  
Spectroscopic Methods ◽  
New Antibiotics ◽  
Bacteria And Fungi ◽  
Derivatives Of ◽  
Growth Of Bacteria

In a screening of basidiomycete cultures from Chile for the production of antibiotics we identified a Serpula himantoides strain as a producer of metabolites inhibiting the growth of bacteria and fungi. Bioactivity guided purification resulted in the isolation of four new antibiotics. Their structures were elucidated by spectroscopic methods. All four compounds are succinimide and maleimide derivatives, of which two are N-hydroxylated

scholarly journals Bioactive Properties and Phenolic Compound Profiles of Turnip-Rooted, Plain-Leafed and Curly-Leafed Parsley Cultivars

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5606
Author(s):  
Ângela Liberal ◽  
Ângela Fernandes ◽  
Nikolaos Polyzos ◽  
Spyridon A. Petropoulos ◽  
Maria Inês Dias ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Phenolic Compound ◽  
Bioactive Compounds ◽  
Antimicrobial Activities ◽  
Petroselinum Crispum ◽  
Good Source ◽  
Bioactive Properties ◽  
Chemical Profiles ◽  
Bacteria And Fungi

Petroselinum crispum Mill., Fuss., is a culinary vegetable used as an aromatic herb that garnishes and flavours a great variety of dishes. In the present study, the chemical profiles and bioactivities of leaf samples from 25 cultivars (three types: plain- and curly-leafed and turnip-rooted) from this species were assessed. Seven phenolic compounds were identified in all the varieties, including apigenin and kaempherol derivates. Apigenin-O-pentoside-O-hexoside was the major compound in all the tested parsley types (20, 22 and 13 mg/g of extract, respectively) and responsible for its excellent antioxidant activity, also investigated in this study. Antimicrobial activities were also explored, and the results revealed a good bioactivity against specific tested pathogens, such as bacteria and fungi. In conclusion, the leaves of all the types of P. crispum are a good source of natural bioactive compounds that confer health benefits, and thus, they should be part of a balanced and diversified diet.

scholarly journals Rhizosphere protists are key determinants of plant health

Microbiome ◽  
2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Wu Xiong ◽  
Yuqi Song ◽  
Keming Yang ◽  
Yian Gu ◽  
Zhong Wei ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Health ◽  
Plant Performance ◽  
Disease Symptoms ◽  
Predator Prey ◽  
Rhizosphere Microbiome ◽  
Pathogen Dynamics ◽  
Microbial Eukaryotes ◽  
Microbiome Research ◽  
Bacteria And Fungi

Abstract Background Plant health is intimately influenced by the rhizosphere microbiome, a complex assembly of organisms that changes markedly across plant growth. However, most rhizosphere microbiome research has focused on fractions of this microbiome, particularly bacteria and fungi. It remains unknown how other microbial components, especially key microbiome predators—protists—are linked to plant health. Here, we investigated the holistic rhizosphere microbiome including bacteria, microbial eukaryotes (fungi and protists), as well as functional microbial metabolism genes. We investigated these communities and functional genes throughout the growth of tomato plants that either developed disease symptoms or remained healthy under field conditions. Results We found that pathogen dynamics across plant growth is best predicted by protists. More specifically, communities of microbial-feeding phagotrophic protists differed between later healthy and diseased plants at plant establishment. The relative abundance of these phagotrophs negatively correlated with pathogen abundance across plant growth, suggesting that predator-prey interactions influence pathogen performance. Furthermore, phagotrophic protists likely shifted bacterial functioning by enhancing pathogen-suppressing secondary metabolite genes involved in mitigating pathogen success. Conclusions We illustrate the importance of protists as top-down controllers of microbiome functioning linked to plant health. We propose that a holistic microbiome perspective, including bacteria and protists, provides the optimal next step in predicting plant performance.

Leaf constituents of Curcuma spp. suppress Meloidogyne hapla and increase bacterial-feeding nematodes

Nematology ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 353-361 ◽  
Author(s):  
Muraleedharan G. Nair ◽  
Nagachandrabose Seenivasan ◽  
Yunbao Liu ◽  
Rebecca M. Feick ◽  
Zin-Thu-Zar Maung ◽  
...  
Keyword(s):  
Plant Growth ◽  
Bioactive Compounds ◽  
Broad Spectrum ◽  
Curcuma Longa ◽  
Management Strategies ◽  
Plant Health ◽  
Meloidogyne Hapla ◽  
Degree Days ◽  
Leaf Extracts ◽  
Negative Effect

Bioactive compounds extracted from agronomical plants have the potential to be ecologically safe and efficient alternatives to restricted broad-spectrum nematicides for managing root pests like Meloidogyne hapla. This study determined the effects of Curcuma longa and C. mangga leaf extracts and constituents on M. hapla infection, beneficial nematodes found in soil, and plant growth under glasshouse conditions over 350-420 degree-days (base 10°C). Incorporation of 60 and 120 g fresh leaves (kg soil)−1 of both Curcuma spp. suppressed the numbers of M. hapla infecting roots of tomato cv. Rutgers but increased beneficial nematodes in soil with minimal negative effect on plant health and growth. Curcuma mangga appears to be more favourable to beneficial nematodes than C. longa. Rhabditis, Acrobeloides and Eucephalobus were the dominant beneficial nematodes isolated from soils amended with Curcuma spp. The safe and selective activities of Curcuma spp. suggest potential for developing biologically integrated M. hapla management strategies.

scholarly journals Characterization of Bioactive Compounds from Romanian Cetraria islandica (L) Ach

2019 ◽  
Vol 70 (6) ◽  
pp. 2186-2191
Author(s):  
Simona Patriche ◽  
Ioana Otilia Ghinea ◽  
Gigi Adam ◽  
Gabriela Gurau ◽  
Bianca Furdui ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Folk Medicine ◽  
Usnic Acid ◽  
Pharmaceutical Formulations ◽  
Cytotoxic Agents ◽  
Digestive Diseases ◽  
High Antioxidant Activity ◽  
Digestive Disorders ◽  
Bacteria And Fungi

Lichens (Lichenophyta phylum), the least exploited subdivision of fungus, are composite plants used in folk medicine for the treatment of diverse pathologies, from respiratory to digestive diseases, as they contain over 500 potentially bioactive compounds identified up-to-date. Lichen acids, such as usnic acid, lobar acid, lecanoric acid or salazinic acid, are among these compounds, with biopharmaceutical applications as antimicrobial, antioxidant and cytotoxic agents. The objectives of this study were to extract usnic acid from Romanian Cetraria islandica, (Parmeliaceae family), to characterize the extracts and to evaluate their antioxidant and antimicrobial potential. The extracts were characterized using FTIR spectroscopy and HPTLC techniques. The extracts and pure usnic acid have shown high antioxidant activity and have activity against certain Gram-positive and Gram-negative bacteria and fungi such as Candida albicans. Therefore, the analyzed bioactive compounds could be used as the basis of pharmaceutical formulations to treat various respiratory and digestive disorders.

scholarly journals Bioactive Compounds Isolated from Marine-Derived Microbes in China: 2009–2018

Marine Drugs ◽  
2019 ◽  
Vol 17 (6) ◽  
pp. 339 ◽  
Author(s):  
Weiwei Sun ◽  
Wenhui Wu ◽  
Xueling Liu ◽  
Diana A. Zaleta-Pinet ◽  
Benjamin R. Clark
Keyword(s):  
Bioactive Compounds ◽  
Marine Algae ◽  
Marine Invertebrates ◽  
The Past ◽  
Strong Focus ◽  
Microbial Strains ◽  
To Come ◽  
Bacteria And Fungi ◽  
Number Of Publications ◽  
Microbial Natural Products

This review outlines the research that was carried out regarding the isolation of bioactive compounds from marine-derived bacteria and fungi by China-based research groups from 2009–2018, with 897 publications being surveyed. Endophytic organisms featured heavily, with endophytes from mangroves, marine invertebrates, and marine algae making up more than 60% of the microbial strains investigated. There was also a strong focus on fungi as a source of active compounds, with 80% of publications focusing on this area. The rapid increase in the number of publications in the field is perhaps most notable, which have increased more than sevenfold over the past decade, and suggests that China-based researchers will play a major role in marine microbial natural products drug discovery in years to come.

scholarly journals OPTIMIZATION, ISOLATION AND CHARACTERIZATION OF BIOACTIVE COMPOUNDS FROM STREPTOMYCES LAVENDULOCOLOR VHB-9

2018 ◽  
Vol 11 (8) ◽  
pp. 361
Author(s):  
Hima Bindu Bssn ◽  
Rajesh Kumar Munaganti ◽  
Vijayalakshmi Muvva ◽  
Krishna Naragani ◽  
Mani Deepa Indupalli
Keyword(s):  
Bioactive Compounds ◽  
Culture Conditions ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Ionization Mass ◽  
Isolation And Identification ◽  
Spectrometry Analysis ◽  
Isolation And Characterization ◽  
Bacteria And Fungi

Objectives: Optimization, isolation, and characterization of bioactive compounds from Streptomyces lavendulocolor VHB-9 isolated from granite mines of Mudigonda village of Khammam district of Telangana state.Methods: The potent strain was identified as S. lavendulocolor VHB-9 by polyphasic taxonomy. The influence of culture conditions on growth and bioactive compounds production was investigated. Purification of bioactive compounds was done using column chromatography. The structures of the compounds were elucidated on the basis of spectroscopic analysis including Fourier transform infrared, electron spray ionization mass spectrophotometry,1H nuclear magnetic resonance (NMR), and13C NMR. The antimicrobial activity of the compounds produced by the strain was tested against both Gram-positive and Gram-negative bacteria and fungi in terms of minimum inhibitory concentration.Results: Isolation and identification of two compounds, namely (2R, 3R)-2, 3-Butanediol (B1A), and nonadecanoic acid (B1B). Fraction B4 was isolated partially purified fraction and identified by the gas chromatography-mass spectrometry analysis. B1B compound exhibited the highest activity against Bacillus megaterium, Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, and Candida albicans when compared to B1A and B4 compounds.

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