Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity
Banana fruits are harvested and then undergo rapid ripening and senescence, sharply limiting their shelf-life and marketability. <i>Myo</i>-inositol (MI) is an important regulator in ethylene production and reactive oxygen species (ROS) accumulation; however, its involvement in the posth...
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2025-07-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/14/15/2638 |
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| author | Lingyu Hu Yi Li Kun Zhou Kaili Shi Yi Niu Feng Qu Shenglin Zhang Weidi He Yuanli Wu |
| author_facet | Lingyu Hu Yi Li Kun Zhou Kaili Shi Yi Niu Feng Qu Shenglin Zhang Weidi He Yuanli Wu |
| author_sort | Lingyu Hu |
| collection | DOAJ |
| description | Banana fruits are harvested and then undergo rapid ripening and senescence, sharply limiting their shelf-life and marketability. <i>Myo</i>-inositol (MI) is an important regulator in ethylene production and reactive oxygen species (ROS) accumulation; however, its involvement in the postharvest ripening process of banana remains to be determined. This study found that postharvest application of MI could efficiently delay the fruit ripening and extend the time in which the luster, color, and hardness were maintained in two cultivars with contrasting storage characteristics, storable ‘Brazil’ and unstorable ‘Fenza No. 1’, when stored at room temperature (23 °C ± 2 °C). Moreover, physiological, metabolic, and gene expression analyses indicated that MI application improved MI metabolism and postponed ethylene biosynthesis and cell wall loosening. The decrease in ethylene production was associated with a reduction in the expression of <i>ACS1</i> and <i>ACO1</i> genes. MI treatment decreased the expressions of <i>PL1/2</i>, <i>PG</i>, and <i>EXP1/7/8</i>, which may account for the delay in softening. In addition, the application of MI could alleviate ROS-mediated senescence and cell membrane damage by promoting the activities of SOD, POD, and anti-O<sub>2</sub><sup>−</sup> and decreasing PPO activity. This study shed light on the function of MI in regulating the postharvest ripening and senescence of bananas and provided an efficient strategy for extending shelf-life and reduce losses. |
| format | Article |
| id | doaj-art-66b2a2dbeedd4d8ba3e1eb038be2963d |
| institution | Kabale University |
| issn | 2304-8158 |
| language | English |
| publishDate | 2025-07-01 |
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| series | Foods |
| spelling | doaj-art-66b2a2dbeedd4d8ba3e1eb038be2963d2025-08-20T04:00:49ZengMDPI AGFoods2304-81582025-07-011415263810.3390/foods14152638Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant ActivityLingyu Hu0Yi Li1Kun Zhou2Kaili Shi3Yi Niu4Feng Qu5Shenglin Zhang6Weidi He7Yuanli Wu8College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaCollege of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaCollege of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaCollege of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaCollege of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaCollege of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaCollege of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, ChinaInstitute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture and Rural Affairs Guangdong Provincial Key Laboratory of Science and Technology Research on Fruit Tree, Guangzhou 510640, ChinaInstitute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture and Rural Affairs Guangdong Provincial Key Laboratory of Science and Technology Research on Fruit Tree, Guangzhou 510640, ChinaBanana fruits are harvested and then undergo rapid ripening and senescence, sharply limiting their shelf-life and marketability. <i>Myo</i>-inositol (MI) is an important regulator in ethylene production and reactive oxygen species (ROS) accumulation; however, its involvement in the postharvest ripening process of banana remains to be determined. This study found that postharvest application of MI could efficiently delay the fruit ripening and extend the time in which the luster, color, and hardness were maintained in two cultivars with contrasting storage characteristics, storable ‘Brazil’ and unstorable ‘Fenza No. 1’, when stored at room temperature (23 °C ± 2 °C). Moreover, physiological, metabolic, and gene expression analyses indicated that MI application improved MI metabolism and postponed ethylene biosynthesis and cell wall loosening. The decrease in ethylene production was associated with a reduction in the expression of <i>ACS1</i> and <i>ACO1</i> genes. MI treatment decreased the expressions of <i>PL1/2</i>, <i>PG</i>, and <i>EXP1/7/8</i>, which may account for the delay in softening. In addition, the application of MI could alleviate ROS-mediated senescence and cell membrane damage by promoting the activities of SOD, POD, and anti-O<sub>2</sub><sup>−</sup> and decreasing PPO activity. This study shed light on the function of MI in regulating the postharvest ripening and senescence of bananas and provided an efficient strategy for extending shelf-life and reduce losses.https://www.mdpi.com/2304-8158/14/15/2638banana ripeningshelf-life<i>myo</i>-inositolethylene biosynthesisreactive oxygen speciescell wall loosening |
| spellingShingle | Lingyu Hu Yi Li Kun Zhou Kaili Shi Yi Niu Feng Qu Shenglin Zhang Weidi He Yuanli Wu Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity Foods banana ripening shelf-life <i>myo</i>-inositol ethylene biosynthesis reactive oxygen species cell wall loosening |
| title | Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity |
| title_full | Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity |
| title_fullStr | Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity |
| title_full_unstemmed | Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity |
| title_short | Postharvest Application of <i>Myo</i>-Inositol Extends the Shelf-Life of Banana Fruit by Delaying Ethylene Biosynthesis and Improving Antioxidant Activity |
| title_sort | postharvest application of i myo i inositol extends the shelf life of banana fruit by delaying ethylene biosynthesis and improving antioxidant activity |
| topic | banana ripening shelf-life <i>myo</i>-inositol ethylene biosynthesis reactive oxygen species cell wall loosening |
| url | https://www.mdpi.com/2304-8158/14/15/2638 |
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