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11.
Onion bulbs of 3 inbred lines were stored during the winter in 4 different storage temperature regimes. Traits directly and indirectly associated with seed production were studied the following summers. The inbred lines differed in their responses and many traits were affected by the storage treatments. The storage treatment of 10°C for 12 weeks followed by 2° C for 12 weeks resulted in a significantly higher seed yield than did storage at 2° C throughout the entire period. Inbred 2399 had a higher seed yield than the other inbreds. Associated with high seed yields of 2399 was early flowering, a high number of leaves/bulb, tall seed stalks and a high number of florets/bulb. 相似文献
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Environmental and genetic control of heterostyly or exserted stigma in the tomato has been observed by previous investigators (2, 4, 6, 7). Flowers developing subsequent to gibberellin treatment have been reported to have a similar effect (1). In the cross between a responding variety, Indian River, and non-responding variety, Fireball, the F1 showed stigma exsertion due to gibberellin treatment. From an analysis of the F2 and backcross segregation it was found that this response was conditioned by a single dominant gene. This gene was assigned the gene symbol Gx. There was no linkage between this character and uniform fruit, u, and self-pruning habit, sp.Department of Horticulture, Michigan State University, East Lansing Journal Article No. 3761 Michigan Agricultural Experiment Station 相似文献
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Tang WR Shioya N Eguchi T Ebata T Matsui J Takenouchi H Honma D Yasue H Takagaki Y Enosawa S Itagaki M Taguchi T Kiyokawa N Amemiya H Fujimoto J 《Veterinary immunology and immunopathology》2005,103(1-2):113-127
A battery of mouse monoclonal antibodies (mAbs) reactive with porcine peripheral blood (PB) leukocytes was generated. Among the mAbs, 6F10 was found to react probably with cluster of differentiation (CD)8 alpha-chain, while 7G3 and 3E12 were found to recognize gammadelta T-cells, as revealed by two-color flow cytometric and immunoprecipitation studies. 7G3 was shown to react with the constant (C) region of the T-cell receptor (TCR) delta-chain by the following facts: (1) 7G3 immunoprecipitated full-length TCR delta-chain protein fused with glutathione S-transferase (GST) produced by Esherichia coli and (2) 7G3 reacted with TCR delta-chain expressing Cos-7 cells transfected with either full-length or N-terminal deleted mutant cDNA, but did not react with Cos-7 cells transfected with C-terminal deleted mutant TCR delta-chain cDNA. All three mAbs produced high-quality immunostaining results on frozen sections, revealing a distinct distribution of gammadelta T-cells and CD8(+) cells. This report precisely characterizes mAbs against porcine TCR for the first time, facilitating molecular biological investigations of the porcine immune system. 相似文献
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Takashi Kobayashi Eiji Kanda Shigeo Naito Toshihiko Nakajima Ichiro Arakawa Kazutoshi Nemoto Masanao Honma Hiroyuki Toujyou Kiyoshi Ishiguro Katsuki Kitada Yoichi Torigoe 《Journal of General Plant Pathology》2003,69(1):17-22
Rice reflectance was measured to determine the spectral regions most sensitive to leaf blast infection with a multispectral
radiometer. As disease severity increased, reflectance also increased in the 400–500 nm (blue), 570–700 nm (red), and 900–2000 nm
regions but decreased in the 500–570 nm and 700–900 nm regions. The increased reflectance in the blue and red regions may
be attributed to decreased chlorophyll and carotenoid contents in response to the blast infection. The maximum and minimum
reflectance differences occurred at 680 nm and 760 nm for the nondiseased and diseased rice, respectively. The spectral location
of maximum sensitivity was 675 nm regardless of disease severity. Rice reflectance ratios were evaluated as indicators of
leaf blast severity. Two ratios, R550/R675 (reflectance at 550 nm divided by reflectance at 675 nm), and R570/R675 quantified
the significant disease severity. These wavelengths were selected based on the sensitivity minima and maxima. The ratios of
nondiseased rice plants varied depending on growth stage. The variation in ratios must be considered when they are used to
estimate leaf blast severity.
Received: April 2, 2002 / Accepted: August 12, 2002 相似文献
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