Effects of Two Marine Microorganisms on Tomato Leaf Mold and Their Resistance to Salt and Cold

doi:10.16409/j.cnki.2095-039x.2016.02.016

Abstract

Abstract: We investigated the colonization and the effects of marine microorganisms NJ-01 and KG89 marked by antibiotics on leaf mold disease (Botrytis cinerea) resistance, salt and cold tolerance and defense enzymes activities of tomato plants. Results showed that the two strains could well colonize in roots, stems and leaves of tomatoes. Prevention efficacy against mold disease were 87.94% and 74.55% by NJ-01 and KG89, respectively. The two strains could improve salt and cold tolerance of tomato plants by increasing SOD and POD activities by 122.22%-234.33%, proline content by 133.09%-149.37%, soluble sugar content by 68.53%, and reducing the relative electric conductivity and MDA content by 36.45%-63.12%.

Key words: marine microorganisms, biological control, salt and cold stress

CLC Number:

S476

ZHOU Xiaojiang, MA Xiangjun, ZHANG Jiuming, LI Chuang, TIAN Li. Effects of Two Marine Microorganisms on Tomato Leaf Mold and Their Resistance to Salt and Cold[J]. journal1, DOI: 10.16409/j.cnki.2095-039x.2016.02.016.

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