Bioactive chemical constituents produced by endophytes and effects on rice plant growth
By Muhammad Mohsin Waqas, Abdul Latif Khan, In-Jung Lee. 2014
94 citations recorded by the source corpus.
We investigated the bioactive potential of fungal endophytes isolated from the roots of Glycine max (L.) Merr. and Cucumis sativus. Initial screening results showed that endophytes, (Chrysosporium pseudomerdarium, Aspergillus fumigates and Paecilomyces sp., Penicillium sp., Phoma glomerata, and Paecilomyces formosus) were promoting the growth attributes (shoot length, chlorophyll contents, and biomass) of mutant and wild-type rice. To know whether, these endophytes were producing bioactive chemical constituents; the endophytes were grown in potato dextrose, czapek broth, and ICI mediums that resulted in varying mycelia biomass. The advance chromatographic analysis of endophytic fungal culture filtrate showed gibberellins (GA) production namely GA1 (0.05–10.55 ngml−1), GA3 (0.48–9.0 ngml−1), GA4 (0.2–8.0 ngml−1), GA7 (1.4–6.5 ngml−1), and GA9 (0.03–1.05 ngml−1) while among endophytes, P. glomerata and P. formosus were highly potent in GAs production. Additionally, the endophyte's culture also contained indole-3-acetic acid (0.23–71.51 µgml−1). Furthermore, oxalic (0.009–0.3 mgl−1), quinic (0.019–0.22 mgl−1), malic (1.94–17.2 mgl−1), and citric (0.012–0.95 mgl−1) acids were also present in the endophytic cultures. The biochemical potential of endophytes greatly varied depending on nutrient source and pH, however, czapek broth rich in carbon revealed higher potential for bioactive chemical constituent's production. In conclusion, the current findings suggest that endophyte can play a vital role in essential crop plant growth by synthesizing a wide array of bioactive metabolites. Furthermore, an increased production of chemical constituents can be achieved by changing the in vitro growth conditions of endophytes
Subfields: Cell Biology, Pharmacology
View Paper: https://www.semanticscholar.org/paper/875be019843d267b82bbd9d574d121d76b826cd8
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Citations in the corpus
- Aspergillus niger CSR3 regulates plant endogenous hormones and secondary metabolites by producing gibberellins and indoleacetic acid (2018, background): “For instance, concentration of GAs and IAA varied in the culture of the same fungus grown on various nutrients and pH (Waqas et al. 2014).”
- Characterization of plant growth-promoting traits of Penicillium species against the effects of high soil salinity and root disease (2014, background): “Fungi produce a wide range of bioactive metabolites, which can improve plant growth (Khan, Hamayun, Ahmad et al. 2011; Waqas et al. 2014).”
- Plant growth promoting endophytic fungi Asprgillus fumigatus TS1 and Fusarium proliferatum BRL1 produce gibberellins and regulates plant endogenous hormones (2018, background): “Several endophytic fungi have also been reported to produce indole-3-acetic acid (IAA) (Ansari et al. 2013; Waqas et al. 2014).”