Control of crown rot-causing fungal pathogens of banana by inorganic salts and a surfactant
Control of crown rot-causing fungal pathogens of banana by inorganic salts and a surfactant
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DOI：
10.1016/j.cropro.2007.02.008
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发表时间：
2007-11-01
期刊：
影响因子：
2.8
通讯作者：
Natsuaki, Keiko T.
中科院分区：
文献类型：
--
作者：
Alvindia, Dionisio G.;Natsuaki, Keiko T.
香蕉冠腐病是一种由多种真菌引起的香蕉采后病害。控制香蕉冠腐引起的真菌病原体，如可可毛双孢，炭疽病，Thielaviopsis paradoxa，和轮枝镰刀菌的无机盐，以及表面活性剂，进行了评价。4gl（-1）的Na_2CO_3、5gl（-1）的NaClO、NaHCO_3、CaCl_2和6 gl（-1）的NaCl均能完全抑制病原菌孢子萌发2d。在相同浓度的盐溶液中，随着表面活性剂浓度的增加，孢子萌发在7 d内完全被抑制。本研究阐明了表面活性剂是如何增强盐的保护作用，从而抑制病原菌孢子萌发的。然而，控制病原体的菌丝生长需要更高剂量的盐。一些无机盐不能有效地控制病原菌的菌丝生长，尽管它们被表面活性剂改善。控制香蕉冠腐病的有效处理是5gl（-1）NaClO、NaHCO_3和5gl（-1）CaCl_2+表面活性剂。一些盐，当改善与表面活性剂，香蕉果实有植物毒性作用。(c)2007爱思唯尔有限公司保留所有权利。
Crown rot, a disease complex caused by various fungi, is an economically significant postharvest disease in bananas. Control of banana crown rot-causing fungal pathogens, such as Lasiodiplodia theobromae, Colletotrichum musae, Thielaviopsis paradoxa, and Fusarium verticillioides by inorganic salts, as well as a surfactant, was evaluated. The conidial germination of pathogens was totally inhibited for 2d at 4gl(-1) of Na2CO3, 5gl(-1) of NaClO, NaHCO3, CaCl2, and 6 gl(-1) of NaCl. The same concentrations of salts completely controlled the conidial germination of all pathogens for 7 d with the amelioration of surfactant. This study elucidated how the surfactant enhanced the protective value of the salt to suppress the conidial germination of the pathogens. However, control of the mycelial growth of the pathogens required a higher dosage of salt. Some inorganic salts were not effective in controlling the mycelial growth of the pathogens, although they were ameliorated by the surfactant. The effective treatments to control crown rot of bananas were 5 gl(-1) of NaClO, NaHCO3, and 5 gl(-1) CaCl2+ Surfactant. Some salts, when ameliorated with surfactant, had a phytotoxic effect on banana fruits. (c) 2007 Elsevier Ltd. All rights reserved.