期刊
BIOLOGICAL CONTROL
卷 74, 期 -, 页码 21-29出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.biocontrol.2014.03.007
关键词
Pichia membranaefaciens; Salicylic acid (SA); Biological control; Citrus fruit; Penicillium italicum; Penicillium digitatum
资金
- National Natural Science Foundation of China [31271958]
- Key Project in Applied Technology of Chongqing Science and Technology Commission [cstc2012gg-yyjsB80003]
- Returned Overseas Chinese Scholars of the State Education Ministry (the 45th)
The separate or combined effects of Pichia membranaefaciens and salicylic acid (SA) on the control of blue and green mold decay in citrus fruits were investigated. Results indicate that combining P. membranaefaciens (1 x 10(8) CFU ml(-1)) with SA (10 mu g ml(-1)) either in a point-inoculated or dipped treatment provided a more effective control of blue and green mold than separately applying yeast or SA. SA (10 mu g ml(-1)) did not significantly affect P. membranaefaciens growth in vitro but slightly increased the yeast population in fruit wounds. P. membranaefaciens plus SA effectively enhanced the phenylalanine ammonia-Iyase, peroxidase, polyphenoloxidase, chitinase, and beta-1,3-glucanase activities and stimulated the synthesis of phenolic compounds. The combined treatment did not impair quality parameters such as weight loss or titratable acidity, but resulted in low average natural infection incidence and increased total soluble solids and ascorbic acid contents in citrus fruits after 14 d at 20 degrees C. (C) 2014 Elsevier Inc. All rights reserved.
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