Validity of fluctuating asymmetry as a gauge of genetic stress in ayu stocks     

Kei’ichiro?IguchiEmail author  Katsutoshi?Watanabe  Mutsumi?Nishida 《Fisheries Science》2005,71(2):308-313

An increasing demand for stocking of hatchery-reared ayu, Plecoglossus altivelis, has aroused concerns about their genetic status which has an effect on their post-stocking performance and the conservation of native biodiversity. Instead of costly analysis, fluctuating asymmetry (FA) was examined to test its suitability as an indirect measure of genetic diversity. Two bilateral traits, pectoral and pelvic fin rays, were targeted, and two wild and four hatchery populations of ayu were sampled for comparison. Frequency of FA in soft-rays was not similar between specimens in both pelvic and pectoral fins. The wild populations did not show FA incidences lower than the hatchery populations, suggesting a considerable degree of environmental stress operating in the wild populations. Comparison between the hatchery populations showed overall increasing FA incidence with the decrease in genetic diversity, although the correlation was not complete in detail. In conclusion, FA can be used as a convenient tool to compare genetic status, but quantified evaluation is rather limited to monitoring changes in the genetic variation within a hatchery population.  相似文献   

The enhancement of Th1 immune response by anti-PD-L1 antibody in cattle infected with Mycobacterium avium subsp. paratuberculosis     

Yamato SAJIKI  Satoru KONNAI  Reiko NAGATA  Satoko KAWAJI  Hayato NAKAMURA  Sotaro FUJISAWA  Tomohiro OKAGAWA  Naoya MAEKAWA  Yukinari KATO  Yasuhiko SUZUKI  Shiro MURATA  Yasuyuki MORI  Kazuhiko OHASHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(2):162

Johne’s disease, caused by Mycobacterium avium subsp. paratuberculosis (MAP), is a chronic enteritis of ruminants. Previous studies have shown that programmed death-ligand 1 (PD-L1) is associated with the disease progression, and PD-L1 blockade activates MAP-specific Th1 responses in vitro. Here, we performed anti-PD-L1 antibody administration using 2 MAP-infected cattle at the late subclinical stage of infection. After administration, bacterial shedding was reduced or maintained at a low level. Additionally, MAP-specific Th1 cytokine production was upregulated, and CD69 expression was increased in T cells. Collectively, the treatment has a potential as a novel control method against Johne’s disease.  相似文献   

Detection of calmodulin and calmodulin-binding proteins in pure phloem sap of rice plants     

Shin-ichi NAKAMURA  Hiroaki HAYASHI  Mitsuo CHINO 《Soil Science and Plant Nutrition》2006,52(2):195-202

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Importance of prumycin produced by Bacillus amyloliquefaciens SD‐32 in biocontrol against cucumber powdery mildew disease          下载免费PDF全文

Keijitsu Tanaka  Mutsumi Fukuda  Yusuke Amaki  Takatoshi Sakaguchi  Koji Inai  Atsushi Ishihara  Hiromitsu Nakajima 《Pest management science》2017,73(12):2419-2428

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