Inactivation of Fusarium oxysporum f.sp. melonis and Pectobacterium carotovorum subsp. carotovorum in hydroponic nutrient solution by low-pressure carbon dioxide microbubbles
Inactivation of Fusarium oxysporum f.sp. melonis and Pectobacterium carotovorum subsp. carotovorum in hydroponic nutrient solution by low-pressure carbon dioxide microbubbles
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尖孢镰刀菌专化型 (Fusarium oxysporum f.sp.) 的灭活
DOI:
10.1016/j.scienta.2013.10.021
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发表时间:
2013
影响因子:
4.3
通讯作者:
Yasuyoshi Hayata
中科院分区:
文献类型:
--
作者:
Fumiyuki Kobayashi;Masaki Sugiura;Hiromi Ikeura;Kanami Sato;Sachiko Odake;Yasuyoshi Hayata
To establish the use of low-pressure carbon dioxide microbubbles (MB-CO2), developed as a food sterilizing method, as a practical technique for inactivating plant pathogens in hydroponic nutrient solution,Fusarium oxysporumf. sp. melonis andPectobacterium carotovorumsubsp. carotovorum were inactivated by MB-CO2. The inorganic components in the MB-CO2-treated hydroponic nutrient solution were also analyzed, and a growth test of leaf lettuces with the MB-CO2-treated hydroponic nutrient solution was performed. Five-log reductions inF. oxysporumf. sp. melonis spores andP. carotovorumsubsp. carotovorum cells were achieved by MB-CO2treatment performed at 15 °C and 1.5 MPa in the mixing vessel, and at 40 °C or 45 °C and 4.0 MPa at the heating coil. No changes of the inorganic components in the MB-CO2-treated hydroponic nutrient solution were observed. Furthermore, CO2dissolved in the hydroponic nutrient solution at high concentration by MB-CO2treatment had little influence on the growth of leaf lettuces. MB-CO2appears to be a promising new technique for inactivating plant pathogens in hydroponic nutrient solution.