บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Pepper (Capsicum annuum) soft rot caused by Erwinia carotovora subsp. atroseptica. [Erratum: Mar 1997, v. 81 (3), p. 305.]

Stommel, J.R., Goth, R. W., Haynes, K. G. and Kim SeongHwan

Plant disease. Vol: 80 Issue: 10 Pages: 1109-1112.

1996

บทคัดย่อ

Pepper (Capsicum annuum) soft rot caused by Erwinia carotovora subsp. atroseptica. [Erratum: Mar 1997, v. 81 (3), p. 305.]

Erwinia carotovora subsp. atroseptica caused soft rot of pepper (Capsicum annuum) fruit in field plots at Beltsville, MD, in 1994. The pathogen was identified as E. carotovora subsp. atroseptica based on carbohydrate utilization and fatty acid profiles. This is the first report of a bacterial fruit rot of pepper caused by E. carotovora subsp. atroseptica. Inoculation techniques were evaluated for reliable induction of pepper soft rot. Inoculation of puncture wounds provided more consistent lesion development than inoculation of Carborundum-induced abrasion wounds or nonwounded tissue. Significant differences in susceptibility of puncture-inoculated pepper genotypes to E. carotovora subsp. atroseptica-induced soft rots were noted. Virulence of E. carotovora subsp. atroseptica, E. carotovora subsp. carotovora, and E. chrysanthemi were compared at warm (23 degrees C) and cool (10 degrees C) temperatures. E. carotovora subsp. carotovora and E. chrysanthemi caused the greatest soft rot decay of pepper fruit at 23 degrees C. At 10 degrees C, fruits inoculated with E. carotovora subsp. atroseptica were the most severely affected, suggesting that E. carotovora subsp. atroseptica has the potential to cause significant postharvest decay losses during cool storage conditions.