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Volume 45 (2000)
- Issue 4 Pages 235-
- Issue 3 Pages 173-
- Issue 2 Pages 81-
- Issue 1 Pages 1-
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Volume 45, Issue 4
Displaying 1-6 of 6 articles from this issue
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Hiroshi Nabetani, Nobuharu Goto, Kaori Tomita-Yokotani, Koji Hasegawa, ...2000 Volume 45 Issue 4 Pages 235-243
Published: December 28, 2000
Released on J-STAGE: December 17, 2009
JOURNAL FREE ACCESSLepidimoide, which was first identified as an allelopathic substance, was roughly confirmed to be included in growing tissues (rosette leaves, stems+inflorescences and roots) of Arabidopsis thaliana by means of HPLC analysis. Peaks of retention time in HPLC of the lepidimoide fractions extracted from the above organs completely coincided with that of authentic lepidimoide.
The lepidimoide-like substance, which was contained in the fraction below MW 3000 in the molecular exclusion chromatography, promoted hypocotyl growth and inhibited root growth of cockscomb (Celosia cristata). The substance also promoted the growth of hypocotyls and cotyledon-petioles, increased the area of cotyledons, but inhibited the root growth of A. thaliana seedlings. These facts suggest that the lepidimoide-like substance may play some role as an endogenous plant growth regulator in growing plants of A thaliana.View full abstractDownload PDF (2147K) -
Shigeru Uchida, Ryoichi Aoyama, Junsuke Iwai, Shuji Fujiwara2000 Volume 45 Issue 4 Pages 244-249
Published: December 28, 2000
Released on J-STAGE: December 17, 2009
JOURNAL FREE ACCESSGlyphosate was applied to nine lines of Equisetum arvense L. (Table 1), and there were considerable differences in the GR50 value among the lines from different localities. The GR50 value of the most tolerant line was 4.93kg a. i./ha, 2.3 times higher than that of the most sensitive line (Table 2). These results suggested that the variability in the control of E. arvense L. observed in the field might be due to the occurrence of lines which differ in their susceptibility to glyphosate.
A new rapid method for the assay of the susceptibility to glyphosate was developed (rhizome-incubation-method). The procedure is as follows. At first, the rhizomes of E. arvense L. are dipped into a glyphosate solution for about 30 seconds and put on a petri dish (15-cm-diameter. with the bottom of each petri dish covered with a filter paper). Then 30ml of glyphosate solution is poured on the petri dish and the number of sprouting shoots is counted after a three-week incubation at 20°C, under dark conditions. The results of the application of this method were similar to those of pot trial (Table 3).View full abstractDownload PDF (668K) -
Ferdinand F. Fajardo, Kazuhiro Takagi, Kenji Usui2000 Volume 45 Issue 4 Pages 250-253
Published: December 28, 2000
Released on J-STAGE: December 17, 2009
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Kangetsu Hirase, Kouichi Moriyasu, Kanji Tomiya2000 Volume 45 Issue 4 Pages 254-257
Published: December 28, 2000
Released on J-STAGE: December 17, 2009
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Keiko Nishijima, Kori Tomita-Yokotani, Hirokazu Tsubura, Seiji Kosemur ...2000 Volume 45 Issue 4 Pages 258-263
Published: December 28, 2000
Released on J-STAGE: December 17, 2009
JOURNAL FREE ACCESS -
Akihide Fushimi, Hiroshi Tsuyuzaki, Shinichi Shirakura, Akira Koarai2000 Volume 45 Issue 4 Pages 264-267
Published: December 28, 2000
Released on J-STAGE: December 17, 2009
JOURNAL FREE ACCESSDownload PDF (460K)
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