{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T16:44:45Z","timestamp":1778863485715,"version":"3.51.4"},"reference-count":25,"publisher":"Scientific Societies","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plant Disease"],"published-print":{"date-parts":[[2001,4]]},"abstract":"<jats:p> Fifty-two Phytophthora isolates from necrotic roots of olives were characterized. Colony morphologies on carrot-agar medium led us to separate them into two groups: A (36 isolates) and B (16 isolates). The optimum growth temperature for Group A was about 21\u00b0C, with slow growth at 30\u00b0C. In contrast, Group B isolates had an optimum temperature for growth of 26\u00b0C, and grew rapidly at 30\u00b0C. Growth rates, sporangial and oogonial characteristics of the Group A isolates conformed to P. megasperma \u201cBHR-type\u201d sensu stricto. This designation was supported by a sequence analysis of their ITS rDNA regions. Colony patterns, sporangial characteristics and temperature-growth relationships of the Group B isolates conformed closely to those of the \u2018O-group\u2019 taxon of Phytophthora. They also conformed to this unusual taxon in their ITS sequence. In addition, Group B isolates were either entirely self-sterile, self-sterile A1s or weakly self-fertile. Pathogenicity tests showed that both taxa were highly aggressive on roots of olive trees. The association of flooding with Phytophthora infection indicates that the previously reported high sensitivity of olive to root asphyxiation may be more properly regarded as root-rot caused by Phytophthora spp. <\/jats:p>","DOI":"10.1094\/pdis.2001.85.4.411","type":"journal-article","created":{"date-parts":[[2007,5,11]],"date-time":"2007-05-11T10:10:25Z","timestamp":1178878225000},"page":"411-416","source":"Crossref","is-referenced-by-count":21,"title":["Identity and Pathogenicity of Two <i>Phytophthora<\/i> Taxa Associated with a New Root Disease of Olive Trees"],"prefix":"10.1094","volume":"85","author":[{"given":"Esperanza","family":"S\u00e1nchez-Hern\u00e1ndez","sequence":"first","affiliation":[{"name":"Dep. Agronom\u00eda, ETSIAM, Universidad de C\u00f3rdoba, Apdo. 3048, 14080 C\u00f3rdoba, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M\u00f3nica","family":"Mu\u00f1oz-Garc\u00eda","sequence":"additional","affiliation":[{"name":"Dep. Agronom\u00eda, ETSIAM, Universidad de C\u00f3rdoba, Apdo. 3048, 14080 C\u00f3rdoba, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Clive M.","family":"Brasier","sequence":"additional","affiliation":[{"name":"Forestry Commission Research Agency, Alice Holt Lodge, Farnham, Surrey GU10 4LH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio","family":"Trapero-Casas","sequence":"additional","affiliation":[{"name":"Dep. Agronom\u00eda, ETSIAM, Universidad de C\u00f3rdoba, Apdo. 3048, 14080"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1665","reference":[{"key":"p_1","unstructured":"Barranco, D., Fern\u00e1ndez-Escobar, R., and Rallo, L., eds. 1999. El cultivo del olivo. Mundi Prensa-Junta de Andaluc\u00eda, Madrid."},{"key":"p_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.py.30.090192.001101"},{"key":"p_3","unstructured":"Brasier, C. M. 2000. The role of Phytophthora pathogens in forests and semi-natural communities in Europe and Africa. Pages 6-13 in: Proceedings of the 1st IUFRO Working Group on Phytophthora diseases of trees, Oregon. August 29-Sept. 3 1999. E. M. Hansen and W. Sutton, eds."},{"key":"p_4","doi-asserted-by":"publisher","DOI":"10.1016\/S0007-1536(79)80015-7"},{"key":"p_5","doi-asserted-by":"publisher","DOI":"10.1016\/S0953-7562(09)80160-3"},{"key":"p_6","doi-asserted-by":"publisher","DOI":"10.1094\/Phyto-78-846"},{"key":"p_7","doi-asserted-by":"publisher","DOI":"10.1006\/fgbi.2000.1202"},{"key":"p_8","unstructured":"Dhingra, O. D., and Sinclair, J. B. 1995. Basic plant pathology methods. CRC Press, Boca Raton, FL."},{"key":"p_9","unstructured":"Draper, N. R., and Smith, H. 1981. Applied Regression Analysis. 2nd ed. John Wiley and Sons, New York."},{"key":"p_10","unstructured":"Erwin, D. C., and Ribeiro, O. K. 1996. Phytophthora diseases worldwide. APS Press, St. Paul, MN."},{"key":"p_11","unstructured":"Farr, D. F., Bills, G. F., Chamuris, G. P., and Rossman, A. Y. 1989. Fungi on plants and plant products in the United States. APS Press, St. Paul, MN."},{"key":"p_12","doi-asserted-by":"publisher","DOI":"10.1016\/S0007-1536(86)80097-3"},{"key":"p_13","doi-asserted-by":"publisher","DOI":"10.1080\/00275514.1991.12026023"},{"key":"p_14","doi-asserted-by":"publisher","DOI":"10.1094\/PD-70-1038"},{"key":"p_15","first-page":"175","author":"Kouyeas H.","year":"1968","journal-title":"Phytophthora. Ann. Inst. Phytopathol. Benaki, N."},{"key":"p_16","doi-asserted-by":"publisher","DOI":"10.1007\/BF00549363"},{"key":"p_17","doi-asserted-by":"publisher","DOI":"10.1038\/35005072"},{"key":"p_18","unstructured":"Rodr\u00edguez-Tello, A. 1994. La muerte de pl\u00e1ntulas de garbanzo causada por Pythium spp. y Phytophthora megasperma en Andaluc\u00eda: Etiolog\u00eda y control. Ph.D. diss. ETSIAM, Universidad de C\u00f3rdoba."},{"key":"p_19","doi-asserted-by":"publisher","DOI":"10.1023\/A:1008624929989"},{"key":"p_20","unstructured":"Steel, G. D., and Torrie, J. H. 1985. Bioestad\u00edstica: Principios y procedimientos. Mc Graw-Hill, Bogot\u00e1."},{"key":"p_21","first-page":"270","volume":"55","author":"Stolzy L. H.","year":"1965","journal-title":"Phytopathology"},{"key":"p_22","unstructured":"Teviotdale, B. E. 1994. Diseases of olive. Pages 107-109 in Olive production manual. L. Ferguson, G. S. Sibbett, and G. C. Martin, eds. Publication 3353. University of California."},{"key":"p_23","doi-asserted-by":"publisher","DOI":"10.1094\/Phyto-75-1146"},{"key":"p_24","doi-asserted-by":"publisher","DOI":"10.1094\/Phyto-75-221"},{"key":"p_25","first-page":"32","volume":"52","author":"Wilhelm S.","year":"1962","journal-title":"Phytopathology"}],"container-title":["Plant Disease"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/apsjournals.apsnet.org\/doi\/pdf\/10.1094\/PDIS.2001.85.4.411","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,12,29]],"date-time":"2021-12-29T21:14:41Z","timestamp":1640812481000},"score":1,"resource":{"primary":{"URL":"https:\/\/apsjournals.apsnet.org\/doi\/10.1094\/PDIS.2001.85.4.411"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,4]]},"references-count":25,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2001,4]]}},"alternative-id":["10.1094\/PDIS.2001.85.4.411"],"URL":"https:\/\/doi.org\/10.1094\/pdis.2001.85.4.411","relation":{},"ISSN":["0191-2917","1943-7692"],"issn-type":[{"value":"0191-2917","type":"print"},{"value":"1943-7692","type":"electronic"}],"subject":[],"published":{"date-parts":[[2001,4]]}}}