Results
Phytophthora nicotianae isolate NMT1 is not pathogenic on C. annuum
Pathogenicity assays were conducted to determine if P. nicotianae, isolated from diseased tomato
in New Mexico [12] was pathogenic on C. annuum cultivars that are susceptible to P. capsici.
Roots of three C. annuum cultivars (Camelot, NM-64, and Jupiter) were inoculated by soil
drenching each plant with a suspension of 375,000 P. nicotianae zoospores and plants were watered
daily for two weeks. No disease symptoms were observed following inoculation with P.
nicotianae (Fig 1). Similarly, no disease symptoms were observed following foliage spray with a
suspension of 100,000 P. nicotianae zoospores per plant and incubation in a humidity chamber
(Fig 1).
Induced Resistance to Phytophthora capsici in Capsicum annuum
PLOS