Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Alternative hosts of Pantoea ananatis.

Abstract

This paper evaluates invasive plants as alternative hosts for Pantoea ananatis in maize (Zea mays). Weeds such as Urochloa decumbens, Digitaria horizontalis, Panicum maximum, Cenchrus echinatus, Amaranthus deflexus and Malvastrum coromandelianum were inoculated by spraying the bacterial suspension of P. ananatis. Z. mays, A. deflexus and C. echinatus showed symptoms at 3, 6 and 9 days after inoculation, respectively. In the other weed plants, the symptoms of the disease were not observed. Therefore, C. echinatus and A. deflexus can serve as alternative hosts for P. ananatis. Knowing the alternative hosts of P. ananatis, greater caution can be taken in eliminating weeds in preventing them from being a primary inoculum source of bacteria for the next growing season, mainly in cultivation of the second crop corn.