Nutrient potential of various Xenorhabdus and Photorhabdus bacteria for a free-living nematode Panagrellus redivivus
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Abstract
Xenorhabdus and Photorhabdus bacteria are symbionts of entomopathogenic nematodes of the genera Steinernema and Heterorhabditis, respectively. To determine the nutrient potential of these bacteria for a free-living nematode, Panagrellus redivivus, a promising food source for first-feeding fish and crustacean, sterile first-stage juveniles (J1) of P. redivivus were fed on various isolates of Xenorhabdus and Photorhabdus bacteria in liquid cultures. Most of the tested bacterial isolates did not support the growth of P. redivivus. However, four of the Xenorhabdus isolates (X. nematophila All, X. bovienii T319, X. beddingii X-7 and X. poinarii KG) provided nutrients for the production of these nematodes in a liquid medium. Two Xenorhabdus isolates (X. beddingii X-7 and X. poinarii KG) even supported mass production of the nematode in a sponge medium, with yields comparable to those with yeast strains. This is the first report that Xenorhabdus bacteria can function as a nutrient source for mass production of nematodes other than their usual symbiotic partners.
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| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 360 | 141 | 12 |
| Full Text Views | 70 | 2 | 1 |
| PDF Views & Downloads | 28 | 4 | 0 |
Nutrient potential of various Xenorhabdus and Photorhabdus bacteria for a free-living nematode Panagrellus redivivus
In: NematologySearch for other papers by Li Cao in
Current site
Google Scholar
PubMed
Search for other papers by Xuehong Qiu in
Current site
Google Scholar
PubMed
Search for other papers by Xiaofen Liu in
Current site
Google Scholar
PubMed
Search for other papers by Xiuling Liu in
Current site
Google Scholar
PubMed
Search for other papers by Richou Han in
Current site
Google Scholar
PubMed
Abstract
Xenorhabdus and Photorhabdus bacteria are symbionts of entomopathogenic nematodes of the genera Steinernema and Heterorhabditis, respectively. To determine the nutrient potential of these bacteria for a free-living nematode, Panagrellus redivivus, a promising food source for first-feeding fish and crustacean, sterile first-stage juveniles (J1) of P. redivivus were fed on various isolates of Xenorhabdus and Photorhabdus bacteria in liquid cultures. Most of the tested bacterial isolates did not support the growth of P. redivivus. However, four of the Xenorhabdus isolates (X. nematophila All, X. bovienii T319, X. beddingii X-7 and X. poinarii KG) provided nutrients for the production of these nematodes in a liquid medium. Two Xenorhabdus isolates (X. beddingii X-7 and X. poinarii KG) even supported mass production of the nematode in a sponge medium, with yields comparable to those with yeast strains. This is the first report that Xenorhabdus bacteria can function as a nutrient source for mass production of nematodes other than their usual symbiotic partners.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 360 | 141 | 12 |
| Full Text Views | 70 | 2 | 1 |
| PDF Views & Downloads | 28 | 4 | 0 |
