Identities and Geographic Distributions of Phytophthora spp. Causing Root Rot of Red Raspberry in Chile

Plant Disease
Wayne F Wilcox, B A Latorre

Abstract

Five identified and two unidentified Phytophthora spp. were isolated from diseased roots of dead or declining red raspberry (Rubus idaeus L.) plants sampled from 18 plantations along a >1,000-km north-south axis in Chile. The array of Phytophthora spp. isolated was strongly associated with geographical location. P. fragariae var. rubi was recovered from 75 and 60% of the plantations in the southern (40°16' to 40°53' S latitude) and central (34°35' to 37°23' S latitude) production sectors, respectively, but was not recovered from any plantation in the northern sector (32°43' to 33°45' S latitude). Similarly, P. megasperma and P. gonopodyides were recovered from multiple plantations in the southern and central sectors but were not recovered in the northern sector. In contrast, P. cryptogea was recovered from 80% of the plantations in both the northern and central sectors but not from any plantation in the south, whereas P. citricolawas isolated from diseased plants in all sectors. In subsequent pathogenicity trials, P. citricola, P. cryptogea, and an unidentified Phytophthora sp. were equally and highly virulent on 'Heritage' red raspberry in each of three greenhouse experiments. The other species were less virulent in the experi...Continue Reading

References

Dec 1, 1999·Plant Disease·W F WilcoxM J Kelly

❮ Previous
Next ❯

Related Concepts

Related Feeds

Anemia

Anemia develops when your blood lacks enough healthy red blood cells. Anemia of inflammation (AI, also called anemia of chronic disease) is a common, typically normocytic, normochromic anemia that is caused by an underlying inflammatory disease. Here is the latest research on anemia.

Blood And Marrow Transplantation

The use of hematopoietic stem cell transplantation or blood and marrow transplantation (bmt) is on the increase worldwide. BMT is used to replace damaged or destroyed bone marrow with healthy bone marrow stem cells. Here is the latest research on bone and marrow transplantation.