caa a22 4500 445389753 CHVBK 20180317143042.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00049-011-0072-8 doi (NATIONALLICENCE)springer-10.1007/s00049-011-0072-8 Overlapping defense responses to water limitation and pathogen attack and their consequences for resistance to powdery mildew disease in garlic mustard, Alliaria petiolata [Elektronische Daten] [Stephanie Enright, Don Cipollini] Plant responses to abiotic stress can alter their response to biotic stress. We examined changes in the activity of several defense proteins in response to powdery mildew infection of garlic mustard (Alliaria petiolata) in the greenhouse and in the field. Second, we examined the effects of water limitation on the same defense protein responses, as well as on total soluble protein and glucose concentration, plant growth, and powdery mildew disease development. Similar increases in the activity of peroxidase, chitinase, and β-1-3-glucanase were observed in leaves of plants with substantial powdery mildew disease in both greenhouse- and field-grown plants. In the greenhouse, activities of chitinase and peroxidase as well as total soluble protein and glucose concentrations generally increased with the degree of water limitation. In turn, leaf growth and powdery mildew symptom development decreased as the degree of water limitation increased. This study revealed that plant chemical responses to water limitation and powdery mildew disease can overlap to a large extent, which, in addition to changing microenvironmental conditions and other indicators of plant quality, may underlie the ability of water limitation to inhibit powdery mildew disease symptom development in this wild plant pathosystem. Springer Basel AG, 2011 Alliaria petiolata nationallicence Erysiphe cruciferarum nationallicence Defense proteins nationallicence Drought stress nationallicence Induced defenses nationallicence Enright Stephanie Department of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, 45435, Dayton, OH, USA aut Cipollini Don Department of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, 45435, Dayton, OH, USA aut Chemoecology SP Birkhäuser Verlag Basel 21/2(2011-06-01), 89-98 0937-7409 21:2<89 2011 21 49 https://doi.org/10.1007/s00049-011-0072-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00049-011-0072-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Enright Stephanie Department of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, 45435, Dayton, OH, USA aut NATIONALLICENCE 700 1- Cipollini Don Department of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, 45435, Dayton, OH, USA aut NATIONALLICENCE 773 0- Chemoecology SP Birkhäuser Verlag Basel 21/2(2011-06-01), 89-98 0937-7409 21:2<89 2011 21 49 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer