The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis

The archeospores released from the blades of Neopyropia yezoensis via dedifferentiated vegetative cells have drawn attention both in cultivation and research. Wounding-induced archeospores formation and release have been observed in N. yezoensis, but the mechanism behind them is unclear. In this stu...

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Main Authors: Dahai Gao, Chaofeng Teng, Xinghong Yan
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-01-01
Series:Aquaculture and Fisheries
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Online Access:http://www.sciencedirect.com/science/article/pii/S2468550X23000850
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author Dahai Gao
Chaofeng Teng
Xinghong Yan
author_facet Dahai Gao
Chaofeng Teng
Xinghong Yan
author_sort Dahai Gao
collection DOAJ
description The archeospores released from the blades of Neopyropia yezoensis via dedifferentiated vegetative cells have drawn attention both in cultivation and research. Wounding-induced archeospores formation and release have been observed in N. yezoensis, but the mechanism behind them is unclear. In this study, the involvement of reactive oxygen species (ROS) in the process of wounding-induced archeospores formation and release was investigated. Based on ROS fluorescence observations, the blade fragments began to accumulate ROS after 12 h wounding, while no ROS signals were observed in normal blades. Next, when the blade fragments were treated with ROS inhibitor diphenyleneiodonium (DPI), it showed that the production of archeopores was significantly suppressed. Under normal culturing after wounding, 78.3% of the fragments could release archeospores, and the ROS fluorescence was enriched in the released archeospores. Under 0.05 μM DPI treatment, the percentage of fragments releasing archeospores was dropped to 16.2%, with decreased ROS fluorescence levels. Under 0.1 μM DPI treatment, no archeospores were released from the fragments, and ROS fluorescence was also undetectable in the fragments. Our findings proved that ROS are essential for wounding-induced archeospores production, which might play regulatory roles in the cell dedifferentiation of N. yezoensis.
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spelling doaj-art-0b233cdcf1624b25b21394a0958950032025-02-09T05:00:51ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2025-01-011018993The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensisDahai Gao0Chaofeng Teng1Xinghong Yan2Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Xiamen, 361000, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, China; Corresponding author. Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China.The archeospores released from the blades of Neopyropia yezoensis via dedifferentiated vegetative cells have drawn attention both in cultivation and research. Wounding-induced archeospores formation and release have been observed in N. yezoensis, but the mechanism behind them is unclear. In this study, the involvement of reactive oxygen species (ROS) in the process of wounding-induced archeospores formation and release was investigated. Based on ROS fluorescence observations, the blade fragments began to accumulate ROS after 12 h wounding, while no ROS signals were observed in normal blades. Next, when the blade fragments were treated with ROS inhibitor diphenyleneiodonium (DPI), it showed that the production of archeopores was significantly suppressed. Under normal culturing after wounding, 78.3% of the fragments could release archeospores, and the ROS fluorescence was enriched in the released archeospores. Under 0.05 μM DPI treatment, the percentage of fragments releasing archeospores was dropped to 16.2%, with decreased ROS fluorescence levels. Under 0.1 μM DPI treatment, no archeospores were released from the fragments, and ROS fluorescence was also undetectable in the fragments. Our findings proved that ROS are essential for wounding-induced archeospores production, which might play regulatory roles in the cell dedifferentiation of N. yezoensis.http://www.sciencedirect.com/science/article/pii/S2468550X23000850Neopyropia yezoensisArcheosporesWoundDPI treatmentReactive oxygen species
spellingShingle Dahai Gao
Chaofeng Teng
Xinghong Yan
The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis
Aquaculture and Fisheries
Neopyropia yezoensis
Archeospores
Wound
DPI treatment
Reactive oxygen species
title The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis
title_full The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis
title_fullStr The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis
title_full_unstemmed The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis
title_short The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis
title_sort involvement of reactive oxygen species in wounding induced archeospores production in neopyropia yezoensis
topic Neopyropia yezoensis
Archeospores
Wound
DPI treatment
Reactive oxygen species
url http://www.sciencedirect.com/science/article/pii/S2468550X23000850
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