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ศักยภาพของจุลินทรีย์เอ็นโดไฟติกที่แยกได้จากต้นสาบเสือ (Eupotorium odortum L.) ที่ต้านทานต่อแคดเมียม (Potential of Endophytic Microorganism Isolated from Siam Weed (Eupotorium odortum L.) Resistant Cadmium) |
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| รหัสดีโอไอ | |
| Creator | อรสิริ ศิริพันธุ์ |
| Title | ศักยภาพของจุลินทรีย์เอ็นโดไฟติกที่แยกได้จากต้นสาบเสือ (Eupotorium odortum L.) ที่ต้านทานต่อแคดเมียม (Potential of Endophytic Microorganism Isolated from Siam Weed (Eupotorium odortum L.) Resistant Cadmium) |
| Publisher | Genetics Society of Thailand |
| Publication Year | 2556 |
| Journal Title | Thai Journal of Genetics |
| Journal Vol. | S.1 |
| Journal No. | S1 (Special Issue 1) |
| Page no. | 424 |
| Keyword | cadmium, endophytic microorganisms, cadA genes, smtAB genes, phytoremediation |
| ISSN | 8578664 |
| Abstract | Cadmium (Cd) is highly toxic to plants, animals and microorganisms. However, some microorganisms have developed the ability to detoxify Cd and other heavy metals. The aims of this study were to isolate and identify endophytic microorganisms (EM) from parts of the metal hyperaccumulator plant, Siam weed (Eupotorium odortum L.). The plants were collected from Cd -contaminated area in Mae Sot district, Tak Province, Thailand. The EM isolated from shoots and roots of Siam weed containing levels of cadmium, appro ximately 0.09- 20.51 and 0.00-4.66 mg/kg dry weight, respectively. Partial sequence of 16S ribosomal RNA gene was used to identify EM species and the Blast results showed that they were Bacillus sp., Sporosarcina sp., Alcaligenes sp., Penicillium sp., Str eptomyces sp. Moreover, some of these strains have been reported that they could promote plant growth by various mechanisms such as solubilization of minerals, productio n of phytohormones, siderophores, Indole -3-acetic acid (IAA). Afterward we found cadA g enes encoding cadmium resistances and smtAB genes encoding synechococcal metallothioneins, in these EM species Bacillus sp. and Paenibacillus sp. The presence of Cd resistant genes and the ability to promote plant growth suggests that the EM inoculants cou ld improve the growth of plants in Cd -polluted soil and be useful for phytoremediation. |
