Physiological Plant Pathology最新文献_第8页

Physiological Plant Pathology Pub Date : 1985-01-01 DOI: 10.1016/0048-4059(85)90079-7

引用次数: 0

Index to volume 26 第26卷索引

Physiological Plant Pathology Pub Date : 1985-01-01 DOI: 10.1016/0048-4059(85)90080-3

引用次数: 0

Tolerance of white bean (Phaseolus vulgaris) to white mold (Sclerotinia sclerotiorum) associated with tolerance to oxalic acid 白豆(Phaseolus vulgaris)对与草酸耐受性相关的菌核菌(Sclerotinia sclerotiorum)的耐受性

Physiological Plant Pathology Pub Date : 1985-01-01 DOI: 10.1016/0048-4059(85)90034-7

J.C. Tu

引用次数: 46

Photosynthesis 光合作用

Physiological Plant Pathology Pub Date : 1985-01-01 DOI: 10.1016/0048-4059(85)90037-2

C.M. Willmer

引用次数: 0

Involvement of the phytoalexin medicarpin in the differential response of callus lines of lucerne (Medicago sativa) to infection by Verticillium albo-atrum 植物抗菌素与紫花苜蓿愈伤组织对黄萎病菌感染差异反应的关系

Physiological Plant Pathology Pub Date : 1985-01-01 DOI: 10.1016/0048-4059(85)90028-1

A.O. Latunde-Dada, J.A. Lucas

引用次数: 43

Characterization of the parasitic interface between Erysiphe pisi and Pisum sativum using fluorescent probes 用荧光探针研究猪刺槐与猪刺槐寄生界面

Physiological Plant Pathology Pub Date : 1984-11-01 DOI: 10.1016/0048-4059(84)90035-3

J.M. Chard , J.L. Gay

{"title":"Characterization of the parasitic interface between Erysiphe pisi and Pisum sativum using fluorescent probes","authors":"J.M. Chard , J.L. Gay","doi":"10.1016/0048-4059(84)90035-3","DOIUrl":"10.1016/0048-4059(84)90035-3","url":null,"abstract":"<div>The constituents of the interface between a strain of Erysiphe pisiand two susceptible and five resistant lines of Pisum sativum were investigated by fluorescence microscopy after treatment with specific reagents. Fragments of epidermes were detached so that the haustoria and extrahaustorial membranes were exposed directly to the reagents. The specificities of the 23 reagents employed included α- and β-linkages in polysaccharides; constituent sugars; aldehyde, amino, sulphydryl and disulphide groups; proteins, lysine, arginine, lipid, calcium and anions; and anion transport sites.The main conclusions are that in the susceptible cultivars the extrahaustorial membrane includes polysaccharides (β1–4 linked) with small amounts of α-glucose, α-mannose and galactose, β-linked N-acetylglucosamine (haustorial face only), protein, arginine, amino and sulphydryl groups and calcium. The extrahaustorial matrix includes varying quantities of β-linked polysaccharides. Haustorial walls contain β-linked polysaccharides including α-glucose, α-mannose, galactose and N-acetyl glucosamine (β-linked). The haustorial cytoplasm contains protein and releases fluorescein from fluorescein diacetate and 3-o-methyl fluorescein phosphate.The main differences between the susceptible lines and the resistant lines is that the resistant line, show enhanced reactivity of terminal glucose, mannose and N-acetylglucosamine groups in the extrahaustorial membranes of some lines. The last is probably due to greater accessibility of lectin effected by rupture of extrahaustorial membranes. Constituents of extrahaustorial membranes fluorescing with 4-acetamido-4′-iso-thiocyanato-stilbene-2,2′-disulphonic acid developed ore slowly and included less cross-linked protein. Calcium was rare in the extrahaustorial membranes and host cytoplasm in resistant lines.The results are discussed in relation to the molecular and functional properties of the interface.</div>","PeriodicalId":101028,"journal":{"name":"Physiological Plant Pathology","volume":"25 3","pages":"Pages 259-276"},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0048-4059(84)90035-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78091328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

The role of papillae in resistance to powdery mildew conditioned by the ml-o gene in barley. II. Experimental evidence 大麦乳突在ml-o基因调控下抗白粉病的作用。2实验证据

Physiological Plant Pathology Pub Date : 1984-11-01 DOI: 10.1016/0048-4059(84)90042-0

Mark C. Stolzenburg, James R. Aist, Herbert W. Israel

{"title":"The role of papillae in resistance to powdery mildew conditioned by the ml-o gene in barley. II. Experimental evidence","authors":"Mark C. Stolzenburg, James R. Aist, Herbert W. Israel","doi":"10.1016/0048-4059(84)90042-0","DOIUrl":"10.1016/0048-4059(84)90042-0","url":null,"abstract":"<div>The ml-o gene in barley conditions resistance to primary penetration by Erysiphe graminis f. sp. hordei as well as an enhanced papilla response. To determine if papillae are necessary for ml-o resistance, cytoplasmic aggregation and papilla formation Were inhibited in near-isogenic resistant-susceptible pairs of barley breeding lines by low-speed centrifugation of leaves and centrifugation and heat-shock treatments of coleoptiles. Papilla frequency was markedly reduced by both methods. Centrifugation separated papilla formation from resistance at most encounter sites, although a small increase in penetration efficiency occurred because haustoria developed at some sites where papilla formation was inhibited. Heat-shock caused a substantial increase in penetration efficiency. Here too, this increase occurred because haustoria developed at sites where papilla formation was inhibited. Taken together, these results demonstrate a strong link between papilla formation and ml-o resistance, but they do not uniformly support the hypothesis that ml-o resistance is based on papilla formation. The centrifugation results, in particular, suggest that papilla formation is not necessary for resistance.</div>","PeriodicalId":101028,"journal":{"name":"Physiological Plant Pathology","volume":"25 3","pages":"Pages 347-361"},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0048-4059(84)90042-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87447490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

Subcellular localization by immunocytochemistry of the extracellular protease produced by Nectria galligena Bres. in infected apple tissue 利用免疫细胞化学方法对高脂血菌胞外蛋白酶进行亚细胞定位。在感染的苹果组织中

Physiological Plant Pathology Pub Date : 1984-11-01 DOI: 10.1016/0048-4059(84)90040-7

M.E.C. Rey , J.P. Noble

{"title":"Subcellular localization by immunocytochemistry of the extracellular protease produced by Nectria galligena Bres. in infected apple tissue","authors":"M.E.C. Rey , J.P. Noble","doi":"10.1016/0048-4059(84)90040-7","DOIUrl":"10.1016/0048-4059(84)90040-7","url":null,"abstract":"<div>Existing evidence implicates an extracellular protease of Nectria galligena Bres. in the initiation of the accumulation of antifungal amounts of benzoic acid in immature apple fruit. It is the purpose of the present work to examine further this relationship between protease and the host cells by immunocytochemical techniques.Thin sections of infected apple tissue, fixed, and embedded in Lowicryl K4M at −40°C were reacted with monospecific antibodies raised in rabbits against the purified protease. Using a secondary tetramethylrhodamine isothiocyanate conjugated antibody, specific fluorescent localization of intercellular and intracellular fungal hyphae and host cell cytoplasm was demonstrated, thus establishing the presence of the protease in infected tissue. In a transmission electron microscope study, this was confirmed, and the localization and distribution of the enzyme further resolved by protein A-gold immunocytochemistry. Specific binding of colloidal gold was evident over, (1) intercellular and intracellular fungal hyphae, (2) electron-dense deposits located within and around hyphae and adjacent to partially degraded apple cell walls, and (3) peripheral vacuolar cytoplasm of intact host cells. These observations suggest that protease synthesized in hyphae of N. galligena is secreted into an extracellular matrix whence it may diffuse through host cell walls and detached, but entire, plasmalemmae observed in infected tissues. The protease is, therefore, able to reach sites in the host where it may elicit benzoic acid or where it may release an endogenous elicitor for that purpose. This is essential supporting evidence for the hypothesis that the accumulation of benzoic acid is initiated by fungal protease in vivo.</div>","PeriodicalId":101028,"journal":{"name":"Physiological Plant Pathology","volume":"25 3","pages":"Pages 323-336"},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0048-4059(84)90040-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78178511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Production and metabolism of 6-methoxymellein in cultured carrot cells 胡萝卜细胞中6-甲氧基甲基lein的产生和代谢

Physiological Plant Pathology Pub Date : 1984-11-01 DOI: 10.1016/0048-4059(84)90039-0

Fumiya Kurosaki, Kimiko Matsui, Arasuke Nishi

引用次数: 44

Distribution of Odontoglossum ringspot virus in apical meristems of infected Cymbidium cultivars 牙舌环斑病毒在染病大花蕙兰品种顶端分生组织中的分布

Physiological Plant Pathology Pub Date : 1984-11-01 DOI: 10.1016/0048-4059(84)90037-7

A. Toussaint , D. Dekegel, G. Vanheule

引用次数: 20