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461.
462.
Akira GOTO Masaaki TAGAMI Fumiki KATO Tsukasa SUZUKI Takashi YAMAGA Harutaka MURASE Fumio SATO Munkhtuul TSOGTGEREL Tadamasa NIIKURA Tomoe MORIYAMA Akiko CHIBA Ken-ichi WATANABE Nao TSUZUKI Yasuo NAMBO 《Journal of Equine Science》2021,32(4):147
We performed a standing hand-assisted laparoscopic ovariectomy in a draft mare that presented with high serum anti-Müllerian hormone (AMH) level and had an enlarged single cystic ovary. Histopathological examination revealed no tumor cell proliferation in the ovary, but the presence of a large ovarian cyst was confirmed. In the diagnosis of abnormal ovaries in mares, a comprehensive assessment should be performed, including the monitoring of ovarian morphology and biomarkers over time, to determine the disease prognosis and treatment plan. The case of this mare with a nonneoplastic abnormal ovary and increased serum AMH level was rare. We suggest that standing hand-assisted laparoscopic ovariectomy is useful for the removal of large ovaries in draft mares. 相似文献
463.
Cistella japonica was inoculated onto the stems of youngChamaecyparis obtusa trees, and the development of external and internal symptoms was investigated for five years. Most lesions started exuding
resin from May to July during the first growing season after inoculation, while a few lesions started exuding resin during
the second growing season. Resin exudation lasted for two successive years on most lesions, and during successive three, four,
or five years on some lesions. Resin exuded excessively in the secondary phloem of the lesions and resin cysts frequently
developed there. The lesions where cambial tissue was necrosed occupied 18% of all the lesions and the resinous areas expanded
to a larger size than those where resin simply exuded in the phloem.Ci. japonica was reisolated from some inoculated lesion tissues at a high frequency. The isolation frequency of the fungus from some lesion
tissues two and more years later was zero or low and that ofCryptosporiopsis abietina was high.
This work was supported by a grant from the Forest Agency of the Japanese Government. 相似文献
464.
Mitsuro KAMEYA-IWAKI Kimiaki MURAKAMI Shin-ichi ITO Kaoru HANADA Shuhei TANAKA 《Journal of General Plant Pathology》2000,66(1):64-67
Sequential transmission tests of Peanut stunt virus (PSV) and Cucumber mosaic virus (CMV) systemically infecting common bean, Phaseolus vulgaris, were conducted using Myzus persicae allowed to fast for 2 hr and then to acquisition feed on infected common bean plants or purified virus for 10 min. In the
sequential transmission tests using either one or 10 aphids per assay plant, three isolates of PSV (J,S,Y5) and one of CMV
(V) were transmitted from and to common bean up to a third or fourth inoculation access. Many aphids transmitted these viruses
to two or three plants. Purified viruses of PSV-S and CMV-V were also transmitted up to a third or second inoculation access
at low percentage. On tobacco, Nicotiana tabacum, aphids transmitted PSV-S and CMV-V only in the first inoculation access, although PSV-S was transmitted to only one plant
in the fourth and fifth inoculation access. These viruses may be transmitted in two phases by aphids, depending on the plant
species.
Received 16 April 1999/ Accepted in revised form 1 September 1999 相似文献
465.
Sample size required for marker assisted selection in improving quantitative traits of self-fertilizing species 总被引:2,自引:0,他引:2
The efficiency of selection for desired trait genotypes in a molecular marker assisted selection for a quantitative trait
in self-fertilizing crop is considered. The QTLs controlling the trait were assumed to be unlinked. It was supposed that the
selection starts in F2, derived from a cross between inbred lines, and this selection will terminate if one or more plants with the desired trait
genotype is found. If no plant with the desired trait genotype is found in F2 then the selection is continued in the F3 progeny that is derived from a single selected F2 plant. Which F2 plant is to be selected was determined according to the rank which is related to the marker genotype of the F2 plants. And this rank was based on the expected frequency of the desired trait genotype in the progeny. The plant with the
top rank among all F2 plants is then selected with the first priority. Additionally the number of F3 plants in the progeny was set to be equal to the number of plants that are required for detecting one or more plants with
the desired trait genotype with a given probability. The probability of getting at least one plant with the desired trait
genotype is expressed as a function of the number of F2 plants (N).The required value for N and the total number of plants (T) in F2 and F3 for detecting at least one plant with the desired trait genotype were calculated for different situations. T was always smaller
for a single marker than for flanking markers. The minimum of T and monotonous decrease of N can be observed when the cumulative-expected-frequency
of selected marker genotypes of F2 plants increased.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
466.
467.
The present study was conducted to determine the in vitro progesterone (P4) production by Mongolian gerbil (Meriones unguiculatus) corpus luteum (CL) on days 9, 18 and 22 of pregnancy in comparison with rat CL on days 9 and 16. The culture medium of one CL per well of a 96‐well plate was changed after 4 h incubation and the CL were further cultured for 24 h. The P4 in serum and in the medium were measured by enzyme immunoassay system. Gerbil CL weight measured after 24 h incubation was at the same level for all 3 days of pregnancy and significantly different from that of the rat CL for the 2 days of pregnancy. The serum P4 level in gerbils was high in early pregnancy and decreased in advanced days of pregnancy. In contrast, the P4 in rats was higher in the latter half of pregnancy. In vitro P4 production by a single CL after 4 h incubation decreased significantly during the days of pregnancy in both the gerbil and the rat. P4 values produced by the gerbil CL for 24 h incubation were significantly higher than after 4 h incubation in all 3 days of pregnancy, however, there was no difference between the two incubation time groups in the rat. In vitro P4 production by CL correlated well with the serum P4 level on the 3 days of pregnancy in the gerbil. In the rat, however, the relationship was inversed between the two parameters. The correlation in this experiment suggested that CL is the sole source of P4 for the maintenance of the gerbil pregnancy, with the result of abortion after an ovariectomy on day 20 of pregnancy as described in our previous report. 相似文献
468.
Chihiro TANAKA Kiminori SHIMIZU Abdul GAFUR Mitsuya TSUDA 《Journal of General Plant Pathology》2002,68(2):141-146
Six reddish brown polyxin-resistant mutants of Cochliobolus heterostrophus were isolated after ethyl methanesul-phonate and N-nitroquinoline oxide mutageneses followed by selection on polyoxin. All the mutants were highly resistant to polyoxin (MIC
> 1600 μg/ml). When mutants were crossed with the wild-type strain, all crosses had a 1 : 1 ratio of mutant (reddish brown
pigmentation and polyoxin resistance) : wild type (non-reddish brown pigmentation and polyoxin sensitivity), indicating that
the phenotypes in these strains were due to alteration at a single gene locus in each strain. Allelism tests revealed the
existence of two loci, Pol2 and Pol5. The results of the crossing and mutation-rate studies suggest that the each gene was pleiotropic for the reddish brown color
and polyoxin resistance.
Received 19 September 2001/ Accepted in revised form 25 December 2001 相似文献
469.
470.
Yasuo Suto 《Journal of Forest Research》1998,3(2):99-102
In the resinous lesion development caused by the inoculation withCistella japonica onChamaecyparis obtusa stem, numerous traumatic resin-canals were formed at certain radial intervals in the secondary phloem. These formation started
in the ring grown in the current or the previous year of inoculation and the resin-canals were subsequently formed in the
newly grown rings. The resin-canals were arranged in tangential series in one to two lines in an annual-ring. Artificially
induced resin-canal formation was similar to that in naturally infected resinous stem canker. The results from the present
study reconfirmed thatCi. japonica is the causal agent of the disease. 相似文献