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Seed phytochemicals shape the community structures of cultivable actinobacteria‐inhabiting plant interiors of Thai pigmented rice
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nakaew, Nareeluk Sungthong, Rungroch |
| Copyright Year | 2018 |
| Abstract | We examined abundance, bioactivity, and endophytism of cultivable actinobacteria isolated from plant interiors of two Thai pigmented rice cultivars: Hom Nin (HN) rice and Luem Pua (LP) glutinous rice. Both rice cultivars housed the same amount of endophytic actinobacteria (33 isolates each). Microbispora (76%) and Streptomyces (73%) were the predominant endophytic actinobacteria of LP glutinous rice and HN rice, respectively. Sphaerisporangium (9%) was found only in LP glutinous rice. Twelve percent of endophytic actinobacteria was the possibility of discovering novel species from both rice cultivars. Most endophytic actinobacteria exhibited plant growth-promoting potentials, including antimicrobial activity against test bacteria and phytopathogenic fungi, solubilization of phosphate, and production of biostimulants (i.e., ammonia, indole-3-acetic acid, and siderophore) and biocatalysts (i.e., amylase, cellulase, chitinase, lipase, and protease). Our findings revealed that seed phytochemicals of pigmented rice (e.g., anthocyanin, γ-oryzanol, phytate, antioxidants, and content of amylose) were effectors, shaping the community structures and biofunctions of endophytic actinobacteria. We conclude that pigmented rice is yet a challenging source for discovery of bioactive and novel actinobacteria. This study also provides new insights into the plant-endophyte interactions by which seed phytochemicals act as a primary checkpoint in the natural selection for establishing unique plant endophytomes. |
| Starting Page | 54 |
| Ending Page | 289 |
| Page Count | 236 |
| File Format | PDF HTM / HTML |
| PubMed reference number | 29575814v1 |
| Alternate Webpage(s) | https://doi.org/10.1002/mbo3.591 |
| DOI | 10.1002/mbo3.591 |
| Journal | MicrobiologyOpen |
| Volume Number | 7 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Actinobacteria class Actinobacteria phylum Ammonia Amylases Amylose Anthocyanins Antioxidants Beta vulgaris seed Ab.IgE:ACnc:Pt:Ser:Qn CELLULASE Cell Cycle Checkpoints Chitinases Endopeptidases Endophytes Enzymes Fungi Indoleacetic acid Lipase Natural Selection Nystagmus Phytate Phytochemicals Plant Development Promotion (action) Siderophores Thermopolyspora |
| Content Type | Text |
| Resource Type | Article |
