Phenotypic and Genetic Diversity of Xanthomonads Isolated from Pepper ( spp.) in Taiwan from 1989 to 2019.

Bacterial spot caused by spp. is an economically important disease of pepper causing significant yield losses in Taiwan. Monitoring the pathogen population on a continuous basis is necessary for developing disease management strategies.

Evaluation of Different Bacterial Wilt Resistant Eggplant Rootstocks for Grafting Tomato.

Bacterial wilt (BW) is one of the most economically important diseases of tomato and eggplant in the tropics and subtropics, and grafting onto resistant rootstocks can provide an alternative and effective solution to manage soil-borne bacterial in these crops. This study was conducted to evaluate the BW resistance and agronomic potential of newly identified eggplant accessions as rootstocks for tomato grafting. Five BW resistant eggplant accessions (VI041809A, VI041943, VI041945, VI041979A, and VI041984) from the World Vegetable Center were evaluated as rootstocks for grafting with two different fresh market tomato cultivars (Victoria and TStarE) as scion under open field conditions in Taiwan.

Development of Interspecific Hybrids between a Cultivated Eggplant Resistant to Bacterial Wilt () and Eggplant Wild Relatives for the Development of Rootstocks.

Bacterial wilt caused by is one of the most economically and destructive eggplant diseases in many tropical and subtropical areas of the world. The objectives of this study were to develop interspecific hybrids, as potential rootstocks, between the eggplant () bacterial wilt resistant line EG203 and four wild accessions ( UPV1, UPV2, UPV3, and UPV4), and to evaluate interspecific hybrids along with parents for resistance to bacterial wilt strains Pss97 and Pss2016. EG203 was crossed successfully with wild accessions UPV2 and UPV3 and produced viable seeds that germinated when wild accessions were used as a maternal parent in the crosses.

Population Dynamics of Xanthomonads Associated with Bacterial Spot of Tomato and Pepper during 27 Years across Taiwan.

Bacterial spot caused by Xanthomonas spp. is the second most important bacterial disease after bacterial wilt of tomato and pepper in Taiwan. To determine the species composition of the Xanthomonas population over 27 years (1989 to 2016) across the country, a large collections of strains from tomato (n = 292) and pepper (n = 198) were examined.