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Zenta Nishio Hisayo Kojima Akiyo Hayata Norio Iriki Tadashi Tabiki Miwako Ito Hiroaki Yamauchi Timothy D. Murray 《Euphytica》2010,176(2):223-229
Wheat yellow mosaic, caused by Wheat yellow mosaic virus (WYMV), is one of the most devastating soil-borne diseases of winter wheat (Triticum aestivum L.) in Japan. Yellow-striped leaves and stunted spring growth, symptomatic of WYMV infection, result in severe yield loss.
A new putative WYMV resistance gene in the European wheat cultivar ‘Ibis’ was mapped in the cluster of microsatellite markers
including Xcfd16, Xwmc41, Xcfd168 and Xwmc181 on the long arm of chromosome 2D at the distances of 2.0 cM, 4.0 cM, 7.1 cM and 12.4 cM, respectively. WYMV-resistant cultivars
contained a common haplotype of the four markers, whereas moderately susceptible and susceptible cultivars did not. These
results should be useful in marker-assisted selection for WYMV resistance in wheat. 相似文献
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Patel KD Scarano FJ Kondo M Hurta RA Neto CC 《Journal of agricultural and food chemistry》2011,59(24):12864-12873
Cranberry ( Vaccinium macrocarpon ) has been shown in clinical studies to reduce infections caused by Escherichia coli and other bacteria, and proanthocyanidins are believed to play a role. The ability of cranberry to inhibit the growth of opportunistic human fungal pathogens that cause oral, skin, respiratory, and systemic infections has not been well-studied. Fractions from whole cranberry fruit were screened for inhibition of five Candida species and Cryptococcus neoformans , a causative agent of fungal meningitis. Candida glabrata , Candida lusitaniae , Candida krusei , and Cryptococcus neoformans showed significant susceptibility to treatment with cranberry proanthocyanidin fractions in a broth microdilution assay, with minimum inhibitory concentrations as low as 1 μg/mL. MALDI-TOF MS analysis of subfractions detected epicatechin oligomers of up to 12 degrees of polymerization. Those containing larger oligomers caused the strongest inhibition. This study suggests that cranberry has potential as an antifungal agent. 相似文献
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Miyuki KITAOKA Shuichi HIRAI Hayato TERAYAMA Munekazu NAITO Ning QU Naoyuki HATAYAMA Hidenobu MIYASO Yoshiharu MATSUNO Masatoshi KOMIYAMA Masahiro ITOH Chisato MORI 《The Journal of reproduction and development》2013,59(5):485-490
Exposure to di-(2-ethylhexyl) phthalate (DEHP) has been reported to induce
spermatogenic disturbance through oxidant stress and affect the immune system as an
adjuvant. However, the effect of DEHP on the testicular immune microenvironment has
not yet been investigated. In the present study, we examined the testicular immune
microenvironment after exposure to doses of DEHP, previously identified as
no-observed-adverse-effect levels. Adult male mice were administered food containing
0%, 0.01% or 0.1% DEHP and then testes were analyzed. The results showed that a
slight but significant spermatogenic disturbance appeared in the 0.1% DEHP group but
not in the 0.01% DEHP group at 8 weeks. It was also demonstrated that lymphocytes and
F4/80- and MHC class II- positive cells were significantly increased with the
elevation of IL-10 and IFN-γ mRNA expressions in the testes of not only the 0.1% DEHP
group but also the 0.01% DEHP group at 8 weeks. Histochemical analyses involving
horseradish peroxidase (HRP) as a tracer showed that a little blood-borne HRP had
infiltrated into the lumen of a few seminiferous tubules beyond the
blood-testis-barrier in both the 0.1% and 0.01% DEHP groups at 8 weeks. This
indicates that a dose of DEHP that has little effects on spermatogenesis can change
the testicular immune microenvironment with functional damage of the blood-testis
barrier. 相似文献
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Shinji Kikuchi Miwako Iwasuna Aya Kobori Yasunori Tsutaki Akihiro Yoshida Yuri Murota Eisho Nishino Hidenori Sassa Takato Koba 《Breeding Science》2014,64(2):176-182
As the fruits of loquat (Eriobotrya japonica, 2n = 2x = 34) carry large seeds, the breeding of seedless loquat has long been a goal. The recent creation of triploid cultivars (2n = 3x = 51) and the application of gibberellins allow commercial production of seedless loquat, but the possibility of seed formation in triploid loquats has not been carefully investigated. Through crossing experiments and cytological observations of meiosis and pollen tube growth, we found that the triploid line 3N-N28 was essentially self-sterile, but developed seeds on pollination with pollen from diploid cultivars at rates of up to 5.5%. Almost half of the seedlings survived to 5 months, and carried diploid (2n = 34), tetraploid (2n = 68), or aneuploid chromosome numbers. Our results suggest that triploid loquat cultivars might retain the risk of seed formation. Protection from pollination by diploid cultivars or the development of new triploid cultivars will be necessary to ensure the production of seedless loquat fruits. 相似文献
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