Search results for "Plasmodiophorid"
showing 2 items of 2 documents
Arginase induction represses gall development during clubroot infection in Arabidopsis.
2012
Arginase induction can play a defensive role through the reduction of arginine availability for phytophageous insects. Arginase activity is also induced during gall growth caused by Plasmodiophora brassicae infection in roots of Arabidopsis thaliana; however, its possible role in this context has been unclear. We report here that the mutation of the arginase-encoding gene ARGAH2 abrogates clubroot-induced arginase activity and results in enhanced gall size in infected roots, suggesting that arginase plays a defensive role. Induction of arginase activity in infected roots was impaired in the jar1 mutant, highlighting a link between the arginase response to clubroot and jasmonate signaling. C…
Field distribution ofSorosphaera viticolain commercial vineyards in Germany
2006
In the year 2000, resting spores of a previously undescribed plasmodiophorid were found in roots of Vitis spp. This plasmodiophorid was identified as a member of the genus Sorosphaera Schroeter and described as Sorosphaera viticola Kirchmair, Neuhauser, Huber. To attain information on the field distribution of Sorosphaera viticola, a selective screening was conducted in two commercial vineyards in Germany. A study to determine a correlation of Sorosphaeraviticola infection to grapevine growth was also performed.