נגישות
menu      
Advanced Search
Weed Research
Joel, D.M., Department of Phytopathology and Weed Research, Agricultural Research Organization (ARO), Newe-Ya'ar Research Center, Ramat-Yishay, Israel, Newe-Ya'ar Research Center, Ramat-Yishay 30095, Israel
Parasitic plants of the Orobanchaceae are known as obligate root parasites that develop haustoria that connect to roots of various host plants. This article describes, for the first time, a case where the root parasite successfully connected to potato tubers, i.e. to the swollen portion of an underground stem rather than to a root. The rhizosphere of Orobanche aegyptiaca and of its host Solanum tuberosum (potato) was carefully examined. In anatomical studies, the adventitious roots were directly connected to potato tubers. Numerous secondary haustoria, which developed along the adventitious roots in close vicinity to the potato tuber, penetrated the tuber epidermis and the perimedullary tuber parenchyma and developed xylem strands that are presumably connected to the minor xylem strands within the tuber cortex. These findings indicate that parasites of the Orobanchaceae that normally attack host roots may also parasitise underground stem tubers. © 2007 The Authors.
Powered by ClearMash Solutions Ltd -
Volcani treasures
About
Terms of use
Direct infection of potato tubers by the root parasite Orobanche aegyptiaca
47
Joel, D.M., Department of Phytopathology and Weed Research, Agricultural Research Organization (ARO), Newe-Ya'ar Research Center, Ramat-Yishay, Israel, Newe-Ya'ar Research Center, Ramat-Yishay 30095, Israel
Direct infection of potato tubers by the root parasite Orobanche aegyptiaca
Parasitic plants of the Orobanchaceae are known as obligate root parasites that develop haustoria that connect to roots of various host plants. This article describes, for the first time, a case where the root parasite successfully connected to potato tubers, i.e. to the swollen portion of an underground stem rather than to a root. The rhizosphere of Orobanche aegyptiaca and of its host Solanum tuberosum (potato) was carefully examined. In anatomical studies, the adventitious roots were directly connected to potato tubers. Numerous secondary haustoria, which developed along the adventitious roots in close vicinity to the potato tuber, penetrated the tuber epidermis and the perimedullary tuber parenchyma and developed xylem strands that are presumably connected to the minor xylem strands within the tuber cortex. These findings indicate that parasites of the Orobanchaceae that normally attack host roots may also parasitise underground stem tubers. © 2007 The Authors.
Scientific Publication
You may also be interested in