result 61 件
| Author | Joja, Ikuo| Sato, Nobuo| Fujishima, Mamoru| Kaji, Mitsumasa| Togami, Izumi| Niiya, Harutaka| Shirakami, Toshiaki| Yamamoto, Hiromichi| Takeda, Yoshihiro| Kimoto, Shin| Hashimoto, Keiji| Morimoto, Setsuo| Sugita, Katsuhiko| Hiraki, Yoshio| Aono, Kaname| |
|---|---|
| Published Date | 1985-02-25 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume97 |
| Issue | issue1-2 |
| Content Type | Journal Article |
| Author | Takeda, Yoshihiro| Hiraki, Yoshio| Morimoto, Setsuo| Togami, Izumi| Shirakami, Toshiaki| Shiraishi, Noriyuki| Kimoto, Shin| Joja, Ikuo| Hashimoto, Keiji| Aono, Kaname| |
|---|---|
| Published Date | 1985-02-25 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume97 |
| Issue | issue1-2 |
| Content Type | Journal Article |
| Author | Shirakami, Toshiaki| |
|---|---|
| Published Date | 1987-06-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume99 |
| Issue | issue5-6 |
| Content Type | Journal Article |
| Author | Nanikawa, Ryo| Hashimoto, Yoshiaki| Moriya, Fumio| Miyaishi, Satoru| Nakai, Miyoko| Yang, Xu| Guo, Chun Gang| |
|---|---|
| Published Date | 1990-02 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume102 |
| Issue | issue1-2 |
| Content Type | Journal Article |
| Author | Yanagitani, Masahiko| Uemae, Satoshi| Shiraga, Tomoyuki| Tamura, Takashi| Inagaki, Kenji| |
|---|---|
| Published Date | 2009-02 |
| Publication Title | 岡山大学農学部学術報告 |
| Volume | volume98 |
| Issue | issue1 |
| Content Type | Departmental Bulletin Paper |
| Author | Ohtaki, Chiaki| |
|---|---|
| Published Date | 1992 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume104 |
| Issue | issue1-2 |
| Content Type | Journal Article |
| Author | Nakayama, Hironobu| |
|---|---|
| Published Date | 1996-08-31 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume108 |
| Issue | issue7-8 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/fest/11440 |
|---|---|
| Title Alternative | Measurement of thermal conductivity in the soils of Shirakami Mountains |
| FullText URL | 011_089_092.pdf |
| Author | Hanzawa, Wakako| Moroizumi, Toshitsugu| Sasaki, Choichi| |
| Abstract | Thermal conductivity of soils in Shirakami Mountains that was registered on UNESCO's World Natural Heritage in 1993 were measured using a twin transient-state cylindrical-probe method. The typical results were as follows:(1) Thermal conductivity of the soils in Shirakami Mountains increased according to an increase of soil water content, which was the same tendency as the other soils. (2) The thermal conductivity of the soils was about 0.2～0.3 Wm(-1)K(-1) smaller than volcanic ash soils, and it showed the same tendency as leaf mold. |
| Keywords | Shirakami Mountains Thermal conductivity Twin transient-state cylindrical-probe method Volumetric water content |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 89 |
| End Page | 92 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313628 |
| Title Alternative | トウモロコシに含まれるDIMBOAとアブラムシ抵抗性の関係 |
|---|---|
| FullText URL | 004_001_033_042.pdf |
| Author | Rustamaki, Maqsood A| Kanehisa, Katsuo| Tsumuki, Hisaaki| Shiraga, Takashi| |
| Abstract | 2,4-Dihydrox-7-methoxy1,4-benzoxazin-3-one (DIMBOA), a hydroxamic acid is considered to be one of the components responsible for the resistance to pest insects in cereal plants. The relationship between concentration of DIMBOA and aphid infestation on 21 corn lines was investigated in 1990 and 1991. DIMBOA was detected in leaves od all corn lines tested, contained larger amounts in young plants and gradually decreased with growth. This property was the same as observed in wheat. A more than ten times difference in DIMBOA concentration was observed in corn lines. However, there was no positive correlation between DIMBOA concentration and aphid density. Most of the lines used had resistance to aphids. Resistance may be built together with other components such as (E)-aconitic acid. |
| Keywords | Apfid Resistant substance Hydroxamic acid DIMBOA Corn |
| Publication Title | 岡山大学資源生物科学研究所報告 |
| Published Date | 1996 |
| Volume | volume4 |
| Issue | issue1 |
| Start Page | 33 |
| End Page | 42 |
| ISSN | 0916-930X |
| language | English |
| File Version | publisher |
| Title Alternative | Quantitative Variations of a Resistance Substance, DIMBOA, against Aphids in Wheat Varieties. |
|---|---|
| FullText URL | 003_001_017_026.pdf |
| Author | Kanehisa, Katsuo| Awan Rustamani, Maqsood| Cheng, Wen-Yi| Tsumuki, Hisaaki| Shiraga, Takashi| |
| Abstract | Aphids sometimes severely infest wheat plants, mainly sucking phloem sap and disrupting tissues, and in a few cases act as virus vectors. There are resistant and susceptible varieties of wheat against aphids. DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one) is a substance causing resistance to animals including aphids. The change in the amounts of DIMBOA with growth in eight wheat varieties was estimated in 1990 and 1991. Wheat seeds were sown at mid-November in the former year and harvested in mid-June. Aphids appeared from early April, increased with the growth of the wheat, and finally decreased with the senescence of the wheat. Rhopalosiphum maidis appeared early in the season, R. padi appeared late, Schizaphis graminum and Sitovion akebiae appeared intermittently in the season. S. graminum appeared more frequently on wheat than barley. DIMBOA was detected from wheat but not from barley. Gramine (N,N-dimethyl-indole-3-methanamine) was detected from barley, and is known as an important resistance substance. However gramine could not be detected in wheat. DIMBOA was found in higher amounts in young wheat, and gradually decreased with growth. A clear relationship between the aphid population and DIMBOA amounts could not be observed. However, all the wheat varieties used in this experiment seemed to have resistance against aphids. The resistance was compared with barley susceptible lines. DIMBOA was presumed to share the property of resistance with aconitic acid in wheat. |
| Keywords | DIMBOA content Wheat Aphid Resistant varaity Susceptible variety |
| Publication Title | 岡山大学資源生物科学研究所報告 |
| Published Date | 1995 |
| Volume | volume3 |
| Issue | issue1 |
| Start Page | 17 |
| End Page | 26 |
| ISSN | 0916-930X |
| language | Japanese |
| File Version | publisher |
| Title Alternative | Changes of Gramine Contents as an Aphid Resistant Substance with Barley Growth |
|---|---|
| FullText URL | 001_002_105_112.pdf |
| Author | Kanehisa, Katsuo| Rustamani, Maqsood A.| Tsumuki, Hisaaki| Kasahara, Toshihiko| Shiraga, Takashi| |
| Abstract | Barley plants may be severely damaged by aphids,mainly because they may transmit viruses,suck food and disrupt tissues. There are resistant lines and susceptible lines in barley to aphids. The changing amounts of gramine from seeding to mature stages were investigated on 27 lines from 1989 to 1991. Barley was sown aound November 20 in the year and harvested in early June. Higher amount of gramine in seeding stage in all lines were detected,then gradually decreased with barley growth until 2 to 3 weeks before the earing stages. At this time aphids had appeared on the barley leaves and increased in population. The susceptible lines had a tendency of greater decrease in gramine content than the resistant lines at the time of aphid population growth. The maximum aphid population was observed from the end of April to early May. The gramine content was almost constant this time. The degradation mechanisms may be important factors determining the defference of resistant and susceptible lines at the aphid population growth stage. The susceptible lines may have a higher activity of degradation mechanism. |
| Keywords | Gramine content Barley Aphid Resistant lines Susceptible lines |
| Publication Title | Bulletin of the Research Institute For Bioresources, Okayama University |
| Published Date | 1993 |
| Volume | volume1 |
| Issue | issue2 |
| Start Page | 105 |
| End Page | 112 |
| ISSN | 0916-930X |
| language | Japanese |
| File Version | publisher |
| Title Alternative | 数種禾穀類におけるアコニット酸の含量とアブラムシ密度との関係 |
|---|---|
| FullText URL | 001_001_009_020.pdf |
| Author | A.Rustamani, Maqsood| Kanehisa, Katsuo| Tsumuki, Hisaaki| Shiraga, Takashi| |
| Abstract | Plant-feeding arthropods, in the course of evolution have adapted differentially to their plant host and thereby gained access to the available resource. Plants responded by developing chemicals and morphological defense to arthropods. Some secondary metabolic substances in plants have been assumed to be toxic or deter feeding. Aconitic acid in the barnyard-grass subspecies, Echinochloa oryzycola Vasing has been reported to be an active component against brown rice planthopper Nilapalvata lugens (Stal) (Kim et al. 1976). Aphids, Ropalosiphum padi. L., R. maidis (F.), Schizaphis graminum (Rondani)and Sitobion akeviae (Shinji), are important pests of barley (Hordeum vulgare L.) and wheat (Triticum aesstivum L.). On barley plants, more than seven aphids per stem causes yield loss (Hansen 1990). R. maidis sometimes severely infested corn plants (Zea mays L.), the leaves being wet by honeydew. Melanaphis sacchari (Zehntner) caused brownish decay of leaves of a susceptible line・ of sorghum Sorghum bicolor Moench. We examined the relation between aconitic acid contents and aphid densities in wheat, barley, corn, sorghum, barnyard grass and rice (Rustamani et al. 1992a). The plants containing larger amounts of aconitic acid showed a moderate degree of resistance to aphids. The findings obtained on additional lines in 1991, and on other components, such as DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one), are reported herein. |
| Publication Title | 岡山大学資源生物科学研究所報告 |
| Published Date | 1992 |
| Volume | volume1 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 20 |
| ISSN | 0916-930X |
| language | English |
| File Version | publisher |
| Author | 白神 昇平| |
|---|---|
| Published Date | 2001-03-25 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 邦浩| |
|---|---|
| Published Date | 2001-06-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 敏明| |
|---|---|
| Published Date | 1987-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 千恵子| |
|---|---|
| Published Date | 1999-03-25 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 松男| |
|---|---|
| Published Date | 1969-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 史雄| |
|---|---|
| Published Date | 1984-03-31 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 浩史| |
|---|---|
| Published Date | 1987-06-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | 白神 健志| |
|---|---|
| Published Date | 1967-09-30 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
