Host-plant-mediated effects of Nadefensin on herbivore and pathogen resistance in Nicotiana attenuata.

ABSTRACT:

Background

The adage from Shakespeare, "troubles, not as single spies, but in battalions come," holds true for Nicotiana attenuata, which is commonly attacked by both pathogens (Pseudomonas spp.) and herbivores (Manduca sexta) in its native habitats. Defense responses targeted against the pathogens can directly or indirectly influence the responses against the herbivores. Nadefensin is an effective induced defense gene against the bacterial pathogen Pseudomonas syringae pv tomato (PST DC3000), which is also elicited by attack from M. sexta larvae, but whether this defense protein influences M. sexta's growth and whether M. sexta-induced Nadefensin directly or indirectly influences PST DC3000 resistance are unknown.

Results

M. sexta larvae consumed less on WT and on Nadefensi

SUBMITTER: Rayapuram C 

PROVIDER: S-EPMC2613890 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature