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  1. DSpace-CRIS at My University
  2. 3.出版品
  3. 3-3.農業試驗所出版品(1950~迄今)
  4. 1.台灣農業研究(1950~迄今)
Please use this identifier to cite or link to this item: https://scholars.tari.gov.tw/handle/123456789/13922
DC FieldValueLanguage
dc.contributor植病組en
dc.contributor.authorC.C. Tuen_US
dc.contributor.author杜金池en_US
dc.creatorC.C. Tuen
dc.creator杜金池en
dc.date1968-12-07-
dc.date.accessioned2012-04-16T06:26:14Z-
dc.date.accessioned2020-05-12T06:54:22Z-
dc.date.available2012-04-16T06:26:14Z-
dc.date.available2020-05-12T06:54:22Z-
dc.date.issued1968-12-07-
dc.identifier.urihttps://scholars.tari.gov.tw/handle/123456789/13922-
dc.description.abstractThe chain of reactions in histogenic demarcations is not initiated by the parasite iself, but by the necrosis caused by it. To his extent, demarcation reaction is non-specific, being indifferent to the particular source of the necrosis of the lesions , toxins of the parasite, orany other organic or inorganic poison. The defensive reactions classified by Gäumann include three groups and six different kinds. Here, hisstogenic demarcations are one kind of protection which is effected by means of the antitoxic reaction; their aim is not to prevent infecton, but to prevent disease. 植物對疾病之防禦反應一向被認為是因為病原體在植物體內之進展而引起之對該病原菌本身之一種或多或少具有持殊性之抗禦作用。Gäumann曾將植物之防禦反應,據防禦對象分成3種,另按防禦反應之類型分成6種。本文論述之組織隔離反應(Histogenic demarcation reaction)即為該氏依據反應類型而分類之一種。 組織隔離反應是寄主植物因抵制從病原菌或植物腐爛細胞所產生之異化物質而產生的保護植物自身的一種防禦反應,所以與其他類型之植物防禦反應不能混為一談。 梨、桃等許多植物之穿孔病為植物組織隔離反應的典型例子。這種防禦反應不僅可發生在葉片,亦可發生在根、莖等部位。然而因發生部位之不同而反應過程及結果亦稍有差異。以Clasterosporium carpophilum引起之櫻桃穿孔病為例,當葉片被病原菌侵染後4至8日間,組織防禦反應開始發生。距離被侵染之腐敗斑點約20個細胞處的健全細胞,圍成一狹帶,並稍膨脹,這些細胞互相擠集,細胞間隙及葉綠體消失,原生質濃縮,細胞核增大,而具活性。當病情擴展時,在病斑四週的已成熟之細胞再次恢復分裂,此極活潑之細胞分裂,透過維管束,而將導管擠在週綠,另方面這些隔阻組織,中止營養分從健全組織進入病斑內,終使腐敗之罹病斑點脫落。 罹病植物之組織隔離反應具有兩大特性,是抗毒質反應,亦是植物體之自動反應。因為這種組織隔離反應是緣賴病原菌引起腐爛而導致,並非病原菌自身所引起,所以這種組織隔離反應並無特殊性,不論何種腐爛病斑內之物質,寄生菌產生之毒質,或是有機或無機物所發生之結果均無差異性。基於上述原因,植物組織隔離反應乃是植物抗禦有毒物質而產生之保護自身健康之反應,其目的不在防止病原體(菌)之侵染,而在於防止疾病之擴展。en_US
dc.format.extent689381 bytes-
dc.format.mimetypeapplication/pdf-
dc.languageen_USen
dc.language.isoen_USen_US
dc.publisher農業試驗所en_US
dc.relation.ispartof農業研究en_US
dc.titleHistogenic Demarcation In Diseased Planten_US
dc.title.alternative罹病值物之組織隔離反應en_US
dc.typejournal articleen_US
dc.relation.journalvolume17en_US
dc.relation.journalissue4en_US
dc.relation.pages51-56en_US
item.fulltextwith fulltext-
item.languageiso639-1en_US-
item.cerifentitytypePublications-
item.openairetypejournal article-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.grantfulltextopen-
Appears in Collections:1.台灣農業研究(1950~迄今)
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