{"created":"2023-06-19T11:38:12.620096+00:00","id":5822,"links":{},"metadata":{"_buckets":{"deposit":"392fded0-7f56-4fe4-b33a-db4eed5fe866"},"_deposit":{"created_by":13,"id":"5822","owners":[13],"pid":{"revision_id":0,"type":"depid","value":"5822"},"status":"published"},"_oai":{"id":"oai:mie-u.repo.nii.ac.jp:00005822","sets":["420:421:443:460"]},"author_link":["13000","13001"],"item_4_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-03-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"22","bibliographicPageStart":"15","bibliographicVolumeNumber":"17","bibliographic_titles":[{"bibliographic_title":"三重大学生物資源学部紀要 = The bulletin of the Faculty of Bioresources, Mie University"}]}]},"item_4_description_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Seeds of different diploid, tetraploid and hexaploid Avena species, stored for eight to nine months after harvesting, were cut transversely into two pieces at three different distances from the base of embryo attachment. Embryonated and embryoless endosperm pieces of three different sizes thus prepared were compared for the ability to produce α-amylase in the absence and presence of gibberellin A3(GA3). The abitity of the endosperm for α-amylase production was estimated by the activity of α-amylase exuded to an agar medium from the cut surface of an endosperm during three days incubation at 3O℃ in the dark. \nThe embryonated endosperms cut near the embryo produced a large amount of α-amylase and those cut at the middle or near the tip end produced a smaller amount of α-amylase. The same trend was observed in all species. \nThe embryonated endosperms of all diploid species produced a relatively large amount of α-amylase, in spite of their small size. A large amount of α-amylase was produced by the embryonated endosperms of species such as tetraploids, A.barbata, A.vaviloviana and A.abyssinica, hexaploids, A.byzantina, A.sativa and A.nuda, all of which having no dormancy or released from the secondary dormancy. While, a small or negligible amount of α-amylase was produced by the embryonated endosperms of A.magna, A.murphyi, A.fatua and A.sterilis, all of these species being still in secondary dormancy.\nOn the other hand, the embryoless endosperms produced no α-amylase in all species with one exception. Namely, the embryoless endosperms of A.ventricosa produced a lot of α-amylase regardlees of their size. \nAddition of GA₃ to the medium caused an increase in α-amylase production in both the embryonated and embryoless endosperms of any size.  This effect of GA₃ was less pronounced in the embryonated than embryoless endosperms. The same trend was observed in all species. \nThese results are discussed in relation to genealogy in the genus Avena, secondary dormancy and the physiological role of embryos of all Avena species as well as that of endosperm of A.ventricosa in α-amylase production.","subitem_description_type":"Abstract"},{"subitem_description":"収穫後8－9ケ月経過した2倍種，4倍種およぴ6倍種のエンバク属の各種の種子（えい果）を胚に近い基部，中央部あるいは先端部で横に切断して，胚が在る胚乳片と胚の細い胚乳片に分けた．この胚乳片によるα－アミラーゼの生産を種間差異および胚の休眠との関連について調査した．\n胚が在る胚乳片は，一般に基部で切断した胚乳片は最も多量のアミラーゼを生産し，先端部からの胚乳は最少の生産であった．\n2倍種の各種は休眠が終っていて，小さい胚乳片にもかかわらず多量のアミラーゼを生産した．休眠がないか，終っている4倍種のA.barbata, A.vaviloviana，A.abyssinica, 6倍種のA.byzantina, A.sativa，A.nudaは多量のアミラーゼを生産した．他方，休眠がまだ残っている4倍種のA.magnaとA.murphyi, 6倍種のA.fatua と A.sterilisは少数しか生産しなかった．\n胚が無い胚乳片は，いずれの種もアミラーゼを殆ど生産しなかった．しかし A.ventricosaは多量のアミラーゼを生産した．\nGA₃の供与は，胚の存否に関係なくアミラー ゼ生産を著しく促進した．しかし，胚が存る胚乳片における促進作用は胚が無い胚乳片よりも常に劣った．\nこれらの実験結果から，エンバク属の種の系統，休眠性，胚乳のアミラーゼ生産に及ぼす胚の促進と抑制の二面的な作用，A．ventricosaの胚乳のアミラーゼ生産の特性について考察した．","subitem_description_type":"Abstract"}]},"item_4_publisher_30":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"三重大学生物資源学部"}]},"item_4_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-0471","subitem_source_identifier_type":"PISSN"}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10073846","subitem_source_identifier_type":"NCID"}]},"item_4_subject_16":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"616","subitem_subject_scheme":"NDC"}]},"item_4_text_18":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_text_language":"ja","subitem_text_value":"エンバク属の種子胚乳におけるα－アミラーゼ生産の種間差異について"}]},"item_4_text_63":{"attribute_name":"ノート","attribute_value_mlt":[{"subitem_text_value":"Agropedia提供データ"}]},"item_4_text_65":{"attribute_name":"資源タイプ（三重大）","attribute_value_mlt":[{"subitem_text_value":"Departmental Bulletin Paper / 紀要論文"}]},"item_4_version_type_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ogawa, Yukiyoshi","creatorNameLang":"en"},{"creatorName":"小川, 幸持","creatorNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tachibana, Shoji","creatorNameLang":"en"},{"creatorName":"橘, 昌司","creatorNameLang":"ja"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-02-18"}],"displaytype":"detail","filename":"AN100738460001703.pdf","filesize":[{"value":"398.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AN100738460001703.pdf","url":"https://mie-u.repo.nii.ac.jp/record/5822/files/AN100738460001703.pdf"},"version_id":"7a64a319-8009-4116-a83e-038cc180691f"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"α-Amylase production","subitem_subject_scheme":"Other"},{"subitem_subject":"Avena species","subitem_subject_scheme":"Other"},{"subitem_subject":"Embryo","subitem_subject_scheme":"Other"},{"subitem_subject":"Endosperm","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Interspecific Difference in α-Amylase Production  by the Endosperm in the Genus Avena","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Interspecific Difference in α-Amylase Production  by the Endosperm in the Genus Avena","subitem_title_language":"en"}]},"item_type_id":"4","owner":"13","path":["460"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2007-04-12"},"publish_date":"2007-04-12","publish_status":"0","recid":"5822","relation_version_is_last":true,"title":["Interspecific Difference in α-Amylase Production  by the Endosperm in the Genus Avena"],"weko_creator_id":"13","weko_shared_id":-1},"updated":"2023-10-12T06:49:17.804374+00:00"}