Effect of Light Wavelengths and Coherence on Growth, Enzymes Activity, and Melanin Accumulation of Liquid-Cultured Inonotus obliquus (Ach.:Pers.) Pilát

Abstract

To investigate effects of light wavelengths and coherence on growth of liquid-cultured Inonotus obliquus mycelia, melanin accumulation and enzymes activity, culture condition as light of different wavelengths and coherence were studied. Short-term exposure of the vegetative mycelium by low-intensity coherent blue light was optimal for stimulation of growth, melanin synthesis, and increase in extracellular and intracellular activities of tyrosinase and polyphenoloxidase and extracellular catalase. Red coherent light, in the same mode, can effectively be used to stimulate the growth of mycelium and to increase intracellular and extracellular activity of polyphenoloxidase, extracellular catalase and tyrosinase, and intracellular peroxidase. Low-coherent light had less stimulating effect on the biosynthetic activity of I. оbliquus. It should be used in the cultivation directed at the obtaining endomelanin, polyphenoloxidase, and extracellular tyrosinase.

Synthesis and structural characteristics analysis of melanin pigments induced by blue light in Morchella sextelata

“…Moreover, the b* value indicating the level of yellow saturation was significantly higher in brown-capped specimens than in black-capped ones. This phenomenon has also been observed in Inonotus obliquus, where exposure to blue light can stimulate melanin synthesis (Poyedinok et al, 2015). Light signaling pathways are intricately interconnected with other signaling cascades, developmental pathways, and metabolic networks (Yu and Fischer, 2018).…”

Realization of Macromycete Photoinduced Growth Activity: Influence of Cultivation Ways and the Concentration of Carbon and Nitrogen

“…Отсутствие достоверного влияния концентрации азота на фотоиндуцированную стимуляцию роста макромицетов тем не менее позволяет предположить, что его концентрация может влиять на индукцию НИЛИ других изменений их биологической активности, таких как синтез ферментов, полисахаридов, меланинов и пр., что не всегда коррелирует с их ростовой активностью [16][17][18][19][20]. Это может быть основанием для проведения исследований, направленных на изучение влияния концентраций азота на метаболизм макромицетов.…”

Biotechnological Production of Fungal Colorants

“…[ [71][72][73] and Terana caerulea [74]. Other physical elicitors comprise thermal and mechanical stress (wound-related pigment formation) [75][76][77].…”