Dim-light photoreceptor of chub mackerel Scomber japonicus and the photoresponse upon illumination with LEDs of different wavelengths

Jang, Jun-Chul; Choi, Mi‐Jin; Yang, Yong-Soo; Lee, Hyung-Been; Yu, Young‐Moon; Kim, Jong‐Myoung

doi:10.1007/s10695-015-0193-z

Cited by 8 publications

(4 citation statements)

References 29 publications

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“…Previous research based on electroretinograms indicated that the photosensitivity of Helicoverpa armigera improved in dark conditions . Consequently, light can modify opsin expression patterns and levels …”

Section: Discussionmentioning

confidence: 99%

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

Tian

Lin

et al. 2019

Pest Management Science

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BACKGROUND The Asian citrus psyllid (ACP), Diaphorina citri Kuwayama (Hemiptera: Psyllidae), is a prominent pest of citrus because it transmits Candidatus Liberibacter asiaticus associated with huanglongbing. Phototactic behavior ubiquitously exists in insects and plays essential roles in host‐searching and mate‐searching in ACP. However, its mechanism has remained unclear to date. In this paper, molecular assays were performed to understand the relation between opsins and the phototactic behavior of ACP. RESULTS We cloned five opsin genes and analyzed their expression patterns. The main three opsin genes (Dc‐UV, Dc‐BW and Dc‐LW) displayed high expression levels in daytime, and the expression levels of the other two opsin genes (Dc‐UV‐like and Dc‐arthropsin) increased during nighttime. In constant darkness, the expression patterns and levels of opsin genes of ACP were altered. Under starvation, the expression levels of the main three opsins were reduced (53.89–84.10%). In contrast, the expression levels in females increased (27.55–60.58%). Feeding of double‐stranded RNA (Dc‐UV, Dc‐LW or Dc‐BW) have reduced the phototactic efficiency of ACP to ultraviolet light (44.79%), green light (54.81%) and blue light (43.00%), respectively. CONCLUSION The results suggest that the expression levels and patterns of opsins of ACP were influenced by photoperiod and the physiological status of ACP. Our research indicates that opsins play crucial roles in phototactic behavior in ACP. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 99%

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

Tian

Lin

et al. 2019

Pest Management Science

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“…The physiological mechanisms by which aquatic organisms adapt to the light cycle and to changes in light quality can be investigated via simulation of light characteristics of the natural environment by artificial regulation. Results of such studies can be used to promote the growth, development, reproduction and migration activities of aquatic organisms (Luchiari, Freire, Pirhonen & Koskela 2009;Gao, Zhang, Li, Shi, Song & Liu 2016;Jang, Choi, Yang, Lee, Yu & Kim 2016).…”

Section: Introductionmentioning

confidence: 99%

Physiological metabolism ofHaliotis discus hannaiIno under different light qualities and cycles

Gao

Zhang

et al. 2016

Aquac Res

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The goal of this experiment was to examine the effects of different light qualities (red, white, blue) and cycles (12L:12D, 8L:16D, 4L:20D, 0L:24D, 16L:8D) on the survival, growth, metabolism and antioxidant defence system of Haliotis discus hannai Ino. Under red and white light at 4L:20D, the body weight‐specific growth rate of abalones was significantly higher than that of the 0L:24D group (P < 0.05). At 16L:8D, succinate dehydrogenase activity decreased and lactate dehydrogenase and alanine aminotransferase activity and the lactic acid content significantly rose (P < 0.05) in the red and white light groups. Under blue light, reactive oxygen species and malondialdehyde content for each light cycle were significantly higher than those of the red and white groups (P < 0.05). Under blue, white and red light, total antioxidant capacity (T‐AOC), superoxide dismutase (SOD) activity, glutathione peroxidase (GPX) activity and reduced glutathione (GSH) content gradually rose with increased duration of light exposure. Under red light, significant differences in these parameters were detected between the 4L:20D and 16L:8D groups (P < 0.05). Under blue and white light at 16L:8D, values of T‐AOC, SOD, GPX activity and GSH content were significantly lower than those of the 12L:12D group (P < 0.05). Overall, these results indicate that red light at light cycles of 4L:20D and 8L:16D is optimal for the culture and production of H. discus hannai, as these conditions promoted food intake, growth and health maintenance as well as normal physiological metabolism of the organism.

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“…Underwater acoustic cameras and vision-based tracking systems have been employed to monitor such fish movements in the aquatic environment (Kane et al, 2005;Kuklina et al, 2012;Niu et al, 2018). Although the former method is more suitable for analyzing behavior in large-scale experiments (Jang et al, 2016), video tracking is more convenient for detecting chemical cues that elicit a behavioral response in a smaller model system.…”

Section: Introductionmentioning

confidence: 99%

Behavioral analysis of rock bream Oplegnathus fasciatus reveals a strong attraction potential for sea urchin extracts

Duminda¹,

Kim²,

Kim³

2021

Fish Aquat Sci

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Monitoring fish movement is important to understand how physiology adapts to environmental change. To explore the applicability of a video tracking system for determining if chemical cues attract or repel aquatic animals, the movement patterns of rock bream, Oplegnathus fasciatus, were analyzed upon exposure to various materials, including extracts of sea urchin, rock worm, bait worm, krill, barley kernel, and commercial fish feed. Pellets were prepared by mixing freeze-dried tissues with a cellulose and corn flour mixture. Behavioral analysis was carried out with five fish that had been acclimated in the adaptation zone of a Y-shaped tank. Preference toward chemical cues was quantified by assessing the frequency rock bream were observed in a discrete zone around the test material located at the end of each arm and the duration each fish stayed in each zone. The analysis of fish movement upon exposure to commercial feed and barley kernel at each end, respectively, indicated a clear preference toward the feed relative to the barley kernel. Movement responses were further tested with pellets containing extracts of sea urchin, one of the species collected on a large scale, and other materials including krill and worms. A stronger preference toward sea urchin (100%) was observed based on the duration of stay in the test zone, compared to krill (90.1 ± 44.2%), bait worm (81.1 ± 39.1%), rock worm (73.7 ± 28.9%), and barley (63.9 ± 25.9%), under the conditions tested. A detailed comparison of rock bream movements toward each material revealed significant differences in frequency and duration, respectively, between pairs of test materials including krill (74 ± 29.8 and 375.6 ± 118.9) vs. rock worm (41.5 ± 18.7 and 160.2 ± 42.6), krill (86.3 ± 22.9 and 477.1 ± 84) vs. bait worm (36.2 ± 5.5 and 166.1 ± 50.7), and rock worm (45.9 ± 26.2 and 213.7 ± 100.1) vs. bait worm (34.6 ± 21.7 and 159.5 ± 98.5). Rock bream exhibited preference for the test materials in the following order: commercial fish feed > sea urchin > krill > rock worm > bait worm > barley. The results suggest a higher potency of sea urchin extract as a rock bream fishing bait compared to the other materials that are used as commercial bait.

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Dim-light photoreceptor of chub mackerel Scomber japonicus and the photoresponse upon illumination with LEDs of different wavelengths

Cited by 8 publications

References 29 publications

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

Physiological metabolism ofHaliotis discus hannaiIno under different light qualities and cycles

Behavioral analysis of rock bream Oplegnathus fasciatus reveals a strong attraction potential for sea urchin extracts

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