巻号一覧
50 巻, 2 号
選択された号の論文の10件中1～10を表示しています
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JUN-ICHI ISHIDSU1975 年 50 巻 2 号 p. 99-113
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーPhysiological properties of two classes of arginine sensitive mutants in Salmonella typhimurium were examined. The growth of ars mutant cells was inhibited specifically by arginine and that of aus mutant cells by either arginine or uracil. Uracil removed the inhibition caused by arginine in both mutants and arginine removed the inhibiton caused by uracil in aus mutant cells. The direct effect of these mutations is assumed to inhibit biosynthesis of carbamyl phosphate in the presence of arginine or uracil. The growth inhibition by arginine was more critical at higher incubation temperatures.抄録全体を表示PDF形式でダウンロード (1413K) -
HIROSHI DOIRA1975 年 50 巻 2 号 p. 115-120
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーThe spontaneous mutant “varnished eye” (symbol ve) manifests a lustrous and small sized imaginal eye in homozygote. The ve mutation indistinguishably resembled to lu but was located on a separate chromosome. Scanning electron microscopic observation of the imaginal eye revealed that the surface of ve eye was rather flattened and smooth with ca. 40 small pimple-like structures of the facet showing a distinct contrast with the regular hexagonal pattern of ca. 3, 000 facets in normal or lu eye. The facet arrangement on the surface of lu eye was fairly regular, but fused (or undifferentiated) structures of chitinous membrane were observed in some places. The facet of lu eye was regular hexagon in shape with smaller size than that of normal eye.
Linkage tests showed that the ve gene was linked with EKp which had been known to be located on the 6th chromosome at 0.0 position. The locus of ve gene was determined to be 11.1 position on the 6th chromosome through a three-point experiment involving ECa, F and ve.抄録全体を表示PDF形式でダウンロード (1121K) -
HIROSHI SUGE1975 年 50 巻 2 号 p. 121-131
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーEndogenous GA content was examined in many dwarf mutants of rice. Several mutants were found to produce very limited amounts of GAs. Complementary gene control of plant height and GA production was suggested in the results obtained by crossing GA-deficient dwarf mutant, Tan-ginbozu, with another dwarf mutant, Dee-geo-woo-gen. The latter mutant produced limited amounts of GAs. This cross resulted in tall F1 plants which produced normal level of GAs. Analysis of GA production in F2 plants in relation to their plant height clearly showed the existence of complementary genes for GA production.抄録全体を表示PDF形式でダウンロード (980K) -
KOJI MYOHARA, KOICHI HIWATASHI1975 年 50 巻 2 号 p. 133-139
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーBy daily isolation line culture and tube transfer culture, we observed the time of initial occurrence of selfing conjugation in the clones of mating type VI of Paramecium caudatum, syngen 3. In most clones, selfing began to occur from 80 to 120 fissions after conjugation. No great difference in the time of occurrence of selfing was observed between progenies of different crosses.抄録全体を表示PDF形式でダウンロード (592K) -
MASATAKE TANAKA, HIROTOYO ISHII1975 年 50 巻 2 号 p. 141-149
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリー1. Differential production of semi-fertile and sterile hybrids when two strains of T. araraticum were crossed with a strain of T. timopheevi has been reported by Tanaka and Ichikawa (1968, 1972). This was reexamined in detail for three years. Results indicate that the difference in fertility observed in the hybrids was genetically controlled. Three possible kinds of factors involved were discussed.
2. Nine strains of T. araraticum and 15 strains of T. timopheevi were hybridized with the above three strains as testers. Both semi-fertile and sterile hybrids were obtained, depending on the hybrid combination involved. Therefore, genetic isolation by hybrid sterility between the two species seems to be incompletely established.
3. Two groups of T. araraticum were found with crosses with the tester strain of T. timopheevi. The first group gave semi-fertile F1 hybrids which showed normal chromosome association at MI. The other group gave sterile hybrids and involved a chromosome interchange at MI. The former had dark green leaves and a procumbent tillering habit, while the latter had light green leaves and a semi-errect tillering habit.抄録全体を表示PDF形式でダウンロード (826K) -
KOICHIRO TSUNEWAKI1975 年 50 巻 2 号 p. 151-154
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーMonosomic analysis was carried out to locate one (Ch1 gene) of the two complementary genes controlling the hybrid chlorosis type 1 in wheat. The result revealed that the Ch1 gene is located on chromosome 2A; thus, confirming the previous report of Hermsen and Waninge (1972) based on a slightly different procedure.抄録全体を表示PDF形式でダウンロード (298K) -
SHOHACHIRO YUKI1975 年 50 巻 2 号 p. 155-157
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーPDF形式でダウンロード (295K) -
YUNG SUN KANG, EUN HO PARK1975 年 50 巻 2 号 p. 159-161
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーPDF形式でダウンロード (535K) -
RYUSO TANAKA, KENJI TANIGUCHI1975 年 50 巻 2 号 p. 163-167
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーPDF形式でダウンロード (2019K) -
MASAO KIMURA1975 年 50 巻 2 号 p. 169-171
発行日: 1975年
公開日: 2007/05/21
ジャーナル フリーPDF形式でダウンロード (526K)
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