The Potential of Gaseous Chlorine Dioxide for the Control of Citrus Postharvest Stem-End Rot Caused by Lasiodiplodia theobromae

The focus of this study was to develop technologies using chlorine dioxide (ClO2) gas to control postharvest stem-end rot of citrus caused by Lasiodiplodia theobromae. Mycelial growth of L. theobromae on potato dextrose agar (PDA) plugs was completely inhibited by a 24-h ClO2 exposure provided by 0....

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Veröffentlicht in:Plant disease. - 1997. - 105(2021), 11 vom: 02. Nov., Seite 3426-3432
1. Verfasser: Zhong, Tian (VerfasserIn)
Weitere Verfasser: Zhang, Jiuxu, Sun, Xiuxiu, Kou, Jingjing, Zhang, Zhike, Bai, Jinhe, Ritenour, Mark A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Diplodia natalensis Lasiodiplodia theobromae chlorine dioxide citrus postharvest stem-end rot Chlorine Compounds Gases Oxides 8061YMS4RM
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520 |a The focus of this study was to develop technologies using chlorine dioxide (ClO2) gas to control postharvest stem-end rot of citrus caused by Lasiodiplodia theobromae. Mycelial growth of L. theobromae on potato dextrose agar (PDA) plugs was completely inhibited by a 24-h ClO2 exposure provided by 0.5 g of solid ClO2 generating granular mixture in a 7.7-liter sealed container. In vivo experiments were conducted on artificially inoculated Tango and naturally infected U.S. Early Pride mandarins. When ClO2 treatments were initiated 0 to 6 h after inoculation, decay development was significantly reduced as compared with the control, and higher ClO2 doses were more effective. A ClO2 treatment (using 3 g of generating mixture per 7.7-liter sealed container) administered 0 h after inoculation resulted in 17.6% Diplodia stem-end rot incidence compared with 95.6% in the control, whereas the same treatment administered 24 h after inoculation was much less effective, resulting in 63.0% incidence compared with 85.4% in the control. Diplodia stem-end rot incidence of naturally infected fruit after using 6 or 9 g of generating mixture per 24-liter sealed box was 23.8 or 25.7%, respectively, compared with 47.9% for control fruit. The ClO2 treatments had no negative effects on fruit quality characteristics including weight loss, firmness, puncture resistance, titratable acids (TAs), total soluble solids (TSSs), and rind color. Albedo pH at wounds was significantly reduced from 6.0 to 4.8 by the ClO2 treatments, whereas undamaged albedo remained at 5.8. In addition, no visible physiologic defects, such as peel browning and bleaching, were observed on ClO2-treated fruit. These results indicate that ClO2 gas has the potential to be developed as a component of an integrated citrus postharvest decay control system to minimize fruit losses 
650 4 |a Journal Article 
650 4 |a Diplodia natalensis 
650 4 |a Lasiodiplodia theobromae 
650 4 |a chlorine dioxide 
650 4 |a citrus 
650 4 |a postharvest 
650 4 |a stem-end rot 
650 7 |a Chlorine Compounds  |2 NLM 
650 7 |a Gases  |2 NLM 
650 7 |a Oxides  |2 NLM 
650 7 |a chlorine dioxide  |2 NLM 
650 7 |a 8061YMS4RM  |2 NLM 
700 1 |a Zhang, Jiuxu  |e verfasserin  |4 aut 
700 1 |a Sun, Xiuxiu  |e verfasserin  |4 aut 
700 1 |a Kou, Jingjing  |e verfasserin  |4 aut 
700 1 |a Zhang, Zhike  |e verfasserin  |4 aut 
700 1 |a Bai, Jinhe  |e verfasserin  |4 aut 
700 1 |a Ritenour, Mark A  |e verfasserin  |4 aut 
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