Light from a firefly at temperatures considerably higher and lower than normal

Abstract Bioluminescence emissions from a few species of fireflies have been studied at different temperatures. Variations in the flash-duration have been observed and interesting conclusions drawn in those studies. Here we investigate steady-state and pulsed emissions from male specimens of the Ind...

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Autores principales:	Mana Mohan Rabha, Upamanyu Sharma, Anurup Gohain Barua
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/220ef09a580f45a7b4552568e1b05afd
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spelling	oai:doaj.org-article:220ef09a580f45a7b4552568e1b05afd2021-12-02T16:04:35ZLight from a firefly at temperatures considerably higher and lower than normal10.1038/s41598-021-91839-32045-2322https://doaj.org/article/220ef09a580f45a7b4552568e1b05afd2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91839-3https://doaj.org/toc/2045-2322Abstract Bioluminescence emissions from a few species of fireflies have been studied at different temperatures. Variations in the flash-duration have been observed and interesting conclusions drawn in those studies. Here we investigate steady-state and pulsed emissions from male specimens of the Indian species Sclerotia substriata at temperatures considerably higher and lower than the ones at which they normally flash. When the temperature is raised to 34 °C, the peak wavelength gets red-shifted and the emitted pulses become the narrowest which broaden considerably thereafter for small increases in temperature; this probably indicates denaturation of the enzyme luciferase catalyzing the light-producing reaction. When the temperature is decreased to the region of 10.5–9 °C, the peak gets blue-shifted and the flash-duration increased abnormally with large fluctuation; this possibly implies cold denaturation of the luciferase. We conclude that the first or hot effect is very likely to be the reason of the species being dark-active on hot days, and the second or cold one is the probable reason for its disappearance at the onset of the winter. Our study makes the inference that these two happenings determine the temperature-tolerance, which plays a major role in the selection of the habitat for the firefly.Mana Mohan RabhaUpamanyu SharmaAnurup Gohain BaruaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mana Mohan Rabha Upamanyu Sharma Anurup Gohain Barua Light from a firefly at temperatures considerably higher and lower than normal
description	Abstract Bioluminescence emissions from a few species of fireflies have been studied at different temperatures. Variations in the flash-duration have been observed and interesting conclusions drawn in those studies. Here we investigate steady-state and pulsed emissions from male specimens of the Indian species Sclerotia substriata at temperatures considerably higher and lower than the ones at which they normally flash. When the temperature is raised to 34 °C, the peak wavelength gets red-shifted and the emitted pulses become the narrowest which broaden considerably thereafter for small increases in temperature; this probably indicates denaturation of the enzyme luciferase catalyzing the light-producing reaction. When the temperature is decreased to the region of 10.5–9 °C, the peak gets blue-shifted and the flash-duration increased abnormally with large fluctuation; this possibly implies cold denaturation of the luciferase. We conclude that the first or hot effect is very likely to be the reason of the species being dark-active on hot days, and the second or cold one is the probable reason for its disappearance at the onset of the winter. Our study makes the inference that these two happenings determine the temperature-tolerance, which plays a major role in the selection of the habitat for the firefly.
format	article
author	Mana Mohan Rabha Upamanyu Sharma Anurup Gohain Barua
author_facet	Mana Mohan Rabha Upamanyu Sharma Anurup Gohain Barua
author_sort	Mana Mohan Rabha
title	Light from a firefly at temperatures considerably higher and lower than normal
title_short	Light from a firefly at temperatures considerably higher and lower than normal
title_full	Light from a firefly at temperatures considerably higher and lower than normal
title_fullStr	Light from a firefly at temperatures considerably higher and lower than normal
title_full_unstemmed	Light from a firefly at temperatures considerably higher and lower than normal
title_sort	light from a firefly at temperatures considerably higher and lower than normal
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/220ef09a580f45a7b4552568e1b05afd
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_version_	1718385196066144256

Light from a firefly at temperatures considerably higher and lower than normal

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