Stimulation of luminescence of mycelium of luminous fungus Neonothopanus nambi by ionizing radiation

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1002/bio.2656

Ключевые слова: Higher luminous fungi, Neonothopanus nambi, ionizing irradiation, reactive oxygen species, lipid peroxidation, Higher luminous fungi, ionizing irradiation, lipid peroxidation, Neonothopanus nambi, reactive oxygen species

Аннотация: The luminescent system of higher luminous fungi is not fully understood and the enzyme/substrate pair of the light emission reaction has not been isolated. It was suggested that luminescence of fungi involves oxidase-type enzymes, and reactive oxygen species are important for fungal light production. Generation of reactive oxygen species can be stimulated by ionizing irradiation, which has not been studied for luminous fungi. We report the effect of X-irradiation on the luminescence of fungus Neonothopanus nambi. Experiments were performed withmyceliumon a home-built setup based on an X-ray tube and monochromator/photomultiplier tube. Application of X-rays does not change the emission spectrum, but after approximately 20 min of continuous irradiation, light production from unsupported mycelium starts growing and increases up to approximately five times. After peaking, its level decreases irrespective of the presence of X-irradiation. After staying at a certain level, light production collapses to zero, which is not related to the drying of the mycelium or thermal impact of radiation. The observed shape of kinetics is characteristic of a multistage and/or chain reaction. The time profile of light production must reflect the current levels of radicals present in the system and/or the activity of enzyme complexes involved in light production. Copyright (C) 2014 John Wiley & Sons, Ltd.

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Издание

Журнал: LUMINESCENCE

Выпуск журнала: Vol. 29, Is. 7

Номера страниц: 703-710

ISSN журнала: 15227235

Место издания: HOBOKEN

Издатель: WILEY-BLACKWELL

Авторы

  • Kobzeva Tatiana V. (Inst Chem Kinet & Combust SB RAS, Novosibirsk 630090, Russia)
  • Melnikov Anatoly R. (Inst Chem Kinet & Combust SB RAS, Novosibirsk 630090, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Karogodina Tatiana Y. (Inst Chem Kinet & Combust SB RAS, Novosibirsk 630090, Russia)
  • Zikirin Samat B. (Inst Chem Kinet & Combust SB RAS, Novosibirsk 630090, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Stass Dmitri V. (Inst Chem Kinet & Combust SB RAS, Novosibirsk 630090, Russia; Novosibirsk State Univ, Novosibirsk 630090, Russia)
  • Molin Yuri N. (Inst Chem Kinet & Combust SB RAS, Novosibirsk 630090, Russia)
  • Rodicheva Emma K. (Inst Biophys SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Medvedeva Svetlana E. (Inst Biophys SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Puzyr Alexey P. (Inst Biophys SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Burov Andrey A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Special Design Technol Bur Nauka SB RAS, Krasnoyarsk 660049, Russia)
  • Bondar Vladimir S. (Inst Biophys SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Gitelson Joseph I. (Inst Biophys SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)

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