The growth and the respiration in roots of sweet potato plants under a moderate potassium deficiency     

Saburo Okamoto 《Soil Science and Plant Nutrition》2013,59(4):175-182

A seven days' culture of sweet potato plants under a deficient potassium application induced various metabolic disturbances in the roots (1,2) and the leaves (3). Prolonged cultures of taro (4), broad bean plants (5), and barley (5) suggested that a half level of the normal potassium content in roots might be a critical point of K -deficiency resulting in a higher respiration rate than its normal status. Such a temporary enhancement of respiration accompanied by accumulation of amino-N and reducing sugars may not necessarily contribute to the accumulation and the assimilation of salts, but accelerate the disturbance of plant metabolism to cause early death of the tissues. This work deals with supplemental data on the effects of K -deficiency on the plant growth and the respiration in roots, comparing these effects in a 15 days' culture of sweet potato plants with those in a longer term culture of other plant species (4,5).  相似文献   

Indirect fluorescent antibody and complement fixation tests in the diagnosis of bovine theileriosis and babesiosis in Japan     

Toru Fujinaga  Tetsuro Minami 《Veterinary parasitology》1981,8(2):115-126

Antibodies against Theileria sergenti and Babesia ovata were detected by indirect fluorescent antibody (IFA) and complement fixation (CF) methods. Both of the antibodies against T. sergenti and B. ovata could be detected with a single IFA testing procedure. Complement fixing antibody tests for T. sergenti in experimentally infected cattle were positive for about 70 days after the parasites could no longer be detected in the blood smear, and were negative thereafter. B. ovata CF antibody titres were negative on the 270th day post-infection, while the IFA tests against both parasites were positive for longer periods. B. ovata IFA-test titres remained relatively high until the 420th day after inoculation. In a survey of sera from naturally infected animals, the rate of detecting antibodies against both parasites was higher using the IFA test than using the CF test. The IFA method was more effective for diagnosis of Babesia infection than the CF technique.  相似文献   

Polled Intersex Syndrome with urethral atresia in a goat     

Yokota S  Matsuu A  Morita T  Tsuka T  Hishinuma M  Minami S  Hikasa Y 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(10):1355-1357

A 5-day-old hornless goat was referred with dysuria since birth. The scrotum was absent, and a small penis-like structure was seen below the perineal raphe. On the laparotomy, the testicles were found near the inguinal ring- and attached to a uterus-like structure. On histological analysis, the uterus-like structure was blind-end. Germ cells were absent in the testis. The karyotype of this goat was 60, XX and the SRY gene was absent. The goat was homozygous for a DNA deletion responsible for the Polled Intersex Syndrome (PIS). To the authors' knowledge, this is the first report as the clinical case of the PIS-/- goat with urethral atresia.  相似文献   

Localization of probe-accessible chitin and characterization of genes encoding chitin-binding domains during rice–<Emphasis Type="Italic">Magnaporthe oryzae</Emphasis> interactions     

Susumu Mochizuki  Ken-ichiro Saitoh  Eiichi Minami  Yoko Nishizawa 《Journal of General Plant Pathology》2011,77(3):163-173

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Spawning grounds and maturation status in adult flathead flounder Hippoglossoides dubius off Niigata Prefecture, Sea of Japan     

Taro Hirose  Takashi Minami 《Fisheries Science》2007,73(1):81-86

Investigations were conducted on the flathead flouder Hippoglossoides dubius to analyze the environmental conditions around the spawning grounds and the maturational status of spawners in the Sea of Japan off Niigata. In both sexes, larger fish matured earlier than smaller individuals, and participated in breeding from the early part of the spawning season. Males were always the predominant sex found within the spawning ground, likely because males spent longer periods in the spawning grounds than females. This finding further suggests that males matured earlier and maintained sexual activity for longer periods than females within the spawning grounds. Submarine topography and water temperature were concluded to be important factors affecting the formation of the spawning grounds. The spawning ground was located within a restricted area where bathymetric lines curve towards a shallow area. Adult fish usually occur in the Japan Sea Proper Water (<1 °C), but spawners gathered just below the surface mixing layer where water temperature was 5–10°C. Hence, it was thought that the flounder spawn at the upper tolerable water temperature limit (i.e. the shallowest accessible depth) to release their offspring into the surface layer.  相似文献   

Chronic myocardial infarction due to arteriosclerosis of coronary arteries followed by acute thromboembolism of caudal abdominal aorta in a cat     

Tsujino K  Hikasa Y  Minami S  Okamoto Y  Morita T  Shimada A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(6):631-634

A 10-year-old cat with the paresis of hind limbs was initially diagnosed as a hypertrophic cardiomyopathy followed by acute thromboembolism of caudal abdominal aorta from the findings of the medical examinations. However, this case was proved to be an chronic myocardial infarction due to arteriosclerosis of coronary arteries by the pathologic diagnosis. In the left ventricular, the hypertrophy and the narrowing were slight, and a coagulative infarction was seen obviously. The intramural coronary arteriosclerosis showed thickening of the wall due to medial hyperplasia by fibrosis, and arterial stenosis. Myocardial infarction and arteriosclerosis are scarcely any reports of these lesions in cats. This case is valuable for an extremely rare case of myocardial infarction in the cat.  相似文献   

人体醛缩酶C cDNA的克隆及其在家蚕体内的表达(英文)     

段家龙  佐藤秀对  原三郎 《蚕业科学》2005,31(4):449-453

利用人体醛缩酶C cNDA的一对特异性引物A ld-5′(5′-ggatcccctcactcgtaccca-3′)和A ld-3′(5′g-gatcctcag-taggcatggtt-3′),从人脑cDNA文库中PCR扩增出人体醛缩酶C cDNA,并依次被克隆进克隆载体pCR2.1、转移载体pAcGP67B以及来源于AcNPV和BmNPV的杂交重组病毒HyNPV。通过对家蚕血液的SDS-PAGE电泳和酶活力测定,证明人体醛缩酶C cDNA在家蚕体内成功得到表达。  相似文献   

Reduction in tick numbers (Haemaphysalis longicornis), mortality and incidence of Theileria sergenti infection in field-grazed calves treated with flumethrin pour-on     

Shimizu S  Nojiri K  Matsunaga N  Yamane I  Minami T 《Veterinary parasitology》2000,92(2):129-138

The effectiveness of the pour-on formulation of flumethrin was tested on grazing cattle. Flumethrin was applied once a month from April to October from 1990 to 1995 to cattle grazing in the Aso area of Kumamoto Prefecture in Japan. Both the number of ticks in the field and the number of ticks feeding on cattle decreased remarkably in relation to the number of years flumethrin was applied. Ticks in the field were not detected in 1994 and 1995, and ticks feeding on cattle decreased to 4% in 1995. Mortality due to Theileria sergenti infection also decreased significantly after more than 3 years of flumethrin pour-on application, although overall mortality did not change. At the end of the trial the incidence of T. sergenti had decreased to one-fifth of the pretrial value, although total incidence of disease had not changed. These results indicated that multiple-year seasonal application of flumethrin pour-on to grazing cattle effectively decreased the number of ticks and decreased both mortality and incidence of T. sergenti.  相似文献   

Genetic diversity and expression analysis of granule bound starch synthase I gene in the new world grain amaranth (Amaranthus cruentus L.)     

Young-Jun Park  Kazuhiro Nemoto  Tomotaro Nishikawa  Kenichi Matsushima  Mineo Minami  Makoto Kawase 《Journal of Cereal Science》2011

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Morphological and habitat characteristics of settling and newly settled Roughscale Sole Clidoderma asperrimum collected in the coastal waters of northeastern Japan     

Takuzo Abe  Toshihiro Wada  Masato Aritaki  Nagaaki Sato  Takashi Minami 《Fisheries Science》2013,79(5):767-777

This report first describes the morphological and habitat characteristics of larval and juvenile Roughscale Sole Clidoderma asperrimum. Five metamorphosing larvae (22.1–31.7 mm standard length, SL) and 12 juveniles (23.7–46.4 mm SL) were collected from two locations in coastal waters of northeastern Japan, Shizugawa Bay (rocky habitats, 6–12 m depth) and Iwaki (sandy habitats, 10–50 m depth), respectively, using a hand net while SCUBA diving and a small trawl net during May–August in 2008 and 2010. Underwater observation in Shizugawa Bay revealed that metamorphosing larvae and juveniles that had settled on rocks or stones showed transparent and variegated body coloration, which is cryptic to a rocky habitat. Juveniles in Iwaki showed monotonic coloration. The settlement would occur during metamorphosis because the same larva observed on a stone subsequently swam with a left-lateralized body posture. The larval morphology was characterized by a dense covering of fine spines on the whole body surface. Spines on the ocular side developed steadily, gradually forming bony tubercles with growth, whereas those on the blind side regressed with development and finally disappeared in metamorphosed juveniles. Our results indicate that Roughscale Sole can settle and adapt to rocky and sandy habitats in coastal waters with wide depth range.  相似文献