Antioxidant and Anti-Osteosarcoma Effect of Edible Fungi Pleurotus ostreatus

2021 ◽  
pp. 78-87
Author(s):  
J. Bindhu ◽  
E. Vihashinee ◽  
A. Rubiga
Keyword(s):  
Pleurotus Ostreatus ◽  
Edible Fungi

scholarly journals Mycelial inhibition of Trichoderma spp. isolated from the cultivation of Pleurotus ostreatus with an extract of Pycnoporus sp.

2020 ◽  
Author(s):  
Anaid Talavera-Ortiz ◽  
Priscila Chaverri ◽  
Gerardo Diaz-Godinez ◽  
Ma de Lourdes Acosta-Urdapilleta ◽  
Elba Villegas ◽  
...  
Keyword(s):  
Growth Rate ◽  
Pleurotus Ostreatus ◽  
Mycelial Growth ◽  
Viral Diseases ◽  
Human Consumption ◽  
Edible Fungi ◽  
Lignocellulosic Substrate ◽  
Trichoderma Spp ◽  
Mycelial Growth Rate ◽  
The One

Abstract:Background and Aims: The production of edible fungi is affected by bacterial, fungal and viral diseases, which very often cause large losses. In the productionof mushrooms of the genus Pleurotus, the fungi of Trichoderma spp. represent a serious problem of contamination and although there are some chemical compoundsthat control the infection, they are not entirely safe for human consumption. As a consequence, alternatives are being searched for through biotechnology,such as the one presented in this paper.Methods: Strains of fungi of the genus Trichoderma were isolated from the substrate where Pleurotus ostreatus was being cultivated. These were identifiedmorphologically and molecularly, followed by tests to inhibit the growth of Trichoderma strains in both agar and wheat straw, using a cetonic extract of thedehydrated fruiting body of Pycnoporus sp.Key results: Two strains of Trichoderma (T. pleuroti and T. atrobrunneum, belonging to the clade of T. harzianum) were isolated from infected substrate obtainedin production modules of Pleurotus ostreatus located in Tlaquitenango and Cuernavaca, in the state of Morelos, Mexico. The effect of a cetonic extract of thefruiting body of Pycnoporus sp. on the mycelial growth of the isolated strains of Trichoderma was also evaluated, observing decrease in mycelial growth rate inPetri dish up to 72% and on lignocellulosic substrate both mycelial growth and sporulation were delayed up to 10 days.Conclusions: The extract of Pycnoporus sp. could be an alternative to control the infection by Trichoderma spp. in mushroom cultures of the genus Pleurotus.Key words: disease control, edible mushrooms, lignocellulosic substrate. 

Resource Utilization Residue of Pleurotus ostreatus

2013 ◽  
Vol 807-809 ◽  
pp. 2048-2053
Author(s):  
Yong Xiong ◽  
Chun Yan Zhao ◽  
Yi Jian Chen ◽  
Wan Song Yue
Keyword(s):  
Pleurotus Ostreatus ◽  
Ganoderma Lucidum ◽  
Water Extract ◽  
Ethanol Extract ◽  
Flammulina Velutipes ◽  
Edible Fungi ◽  
Mycelium Growth ◽  
Extract Concentration ◽  
Ethanol Extracts ◽  
Better Than

The allelopathy of spent substrate extracts including water extract and ethanol extract ofPleurotus ostreatuson the mycelium growth of six edible fungi, i.e.Flammulina velutipes,Ganoderma lucidum Karst,Pleurotus ostreatusandCordyceps (three species), were investigated using Petri dishes approach. The results indicated that the spent substrate extracts have different effects on their mycelium growth. The mycelium ofFlammulina velutipesgrows better than control check with increasing water extract concentration. The mycelia ofGanoderma lucidum Karstgrow first promotion after inhibition with increasing water extract concentration. The mycelia ofFlammulina velutipes, Ganoderma lucidum Karst, Pleurotus ostreatusare promoted by ethanol extracts. The mycelia of Cordyceps (three species) grow first promotion after inhibition with ethanol extracts. The results can provide reference values for rational utilization of the spent mushroom substrate.

Transformation of the edible fungi, Pleurotus ostreatus and Volvariella volvacea

1998 ◽  
Vol 102 (7) ◽  
pp. 876-880 ◽  
Author(s):  
Jian Hua Jia ◽  
John A. Buswell ◽  
John F. Peberdy
Keyword(s):  
Pleurotus Ostreatus ◽  
Volvariella Volvacea ◽  
Edible Fungi

scholarly journals Effect of Substrates on Nutritional Composition and Functional Properties of Pleurotus Ostreatus

2018 ◽  
Vol 5 (1) ◽  
pp. 15-22
Author(s):  
Mbassi Josiane E. G ◽  
Mobou Estelle Y ◽  
Ngome Francis A ◽  
Sado Kamdem S. L
Keyword(s):  
Pleurotus Ostreatus ◽  
White Rot Fungi ◽  
Nutritional Composition ◽  
White Rot ◽  
University Libraries ◽  
Edible Fungi ◽  
Nutritional Properties ◽  
Pleurotus Species ◽  
Published Research

Pleurotus species, commonly known as oyster mushrooms, are edible fungi cultivated worldwide. Pleurotus genus is one of most extensively studied white-rot fungi due to its exceptional ligninolytic properties. These mushrooms have the ability to colonize and degrade a wide variety of lingo-cellulosic wastes with relatively short cycle. The objective of this study was to review published research works on the effect of substrates on nutritional composition and functional property of Pleurotus ostreatus. A literature search was done on the internet and university libraries in this area. It was found that different substrates used in cultivating mushrooms do have effect on the functional, organoleptic and nutritional properties of mushrooms. This review presents a practical checklist of effect of substrates on quality of Pleurotus ostreatus that may help different users.

scholarly journals Nitric Oxide Improves the Tolerance of Pleurotus ostreatus to Heat Stress by Inhibiting Mitochondrial Aconitase

2019 ◽  
Vol 86 (5) ◽  
Author(s):  
Ludan Hou ◽  
Mengran Zhao ◽  
Chenyang Huang ◽  
Xiangli Wu ◽  
Jinxia Zhang
Keyword(s):  
Gene Expression ◽  
Nitric Oxide ◽  
Heat Stress ◽  
Oxidative Damage ◽  
Pleurotus Ostreatus ◽  
Seasonal Temperature ◽  
Respiratory Pathway ◽  
Edible Fungi ◽  
Content Type ◽  
Heat Stress Response

ABSTRACT Pleurotus ostreatus is widely cultivated in China. However, its cultivation is strongly affected by seasonal temperature changes, especially the high temperatures of summer. Nitric oxide (NO) was previously reported to alleviate oxidative damage to mycelia by regulating trehalose. In this study, we found that NO alleviated oxidative damage to P. ostreatus mycelia by inhibiting the protein and gene expression of aconitase (ACO), and additional studies found that the overexpression and interference of aco could affect the content of citric acid (CA). Furthermore, the addition of exogenous CA can induce alternative oxidase (aox) gene expression under heat stress, reduce the content of H2O2 in mycelium, and consequently protect the mycelia under heat stress. An additional analysis focused on the function of the aox gene in the heat stress response of mycelia. The results show that the colony diameter of the aox overexpression (OE-aox) strains was significantly larger than that of the wild-type (WT) strain under heat stress (32°C). In addition, the mycelia of OE-aox strains showed significantly enhanced tolerance to H2O2. In conclusion, this study demonstrates that NO can affect CA accumulation by regulating aco gene and ACO protein expression and that CA can induce aox gene expression and thereby be a response to heat stress. IMPORTANCE Heat stress is one of the abiotic stresses that affect the growth and development of edible fungi. Our previous study found that exogenous NO had a protective effect on mycelia under heat stress. However, its regulatory mechanism had not been elucidated. In this study, we found that NO altered the respiratory pathway of mycelia under heat stress by regulating aco. The results have enhanced our understanding of NO signaling pathways in P. ostreatus.

Biological parameters and host preference of Tyrophagus putrescentiae (Schrank) on different Pleurotus ostreatus cultivars

2022 ◽  
Author(s):  
Zi Qiang Hou ◽  
Jun Jie Liu ◽  
Hui Ping Li ◽  
Xin Luo ◽  
Lin Ma ◽  
...  
Keyword(s):  
Adult Development ◽  
Pleurotus Ostreatus ◽  
Development Time ◽  
Host Preference ◽  
Tyrophagus Putrescentiae ◽  
Edible Fungi ◽  
Growth Development ◽  
Mushroom Yield ◽  
The Relationship ◽  
Mite Mortality

Tyrophagus putrescentiae (Acari: Acaridae) is a destructive pest of edible fungi. Different species of edible fungi have variable effects on the growth, development and fecundity of T. putrescentiae, but it is unclear whether these effects exist in the same species. We used nine cultivars of the oyster mushroom (Pleurotus ostreatus) to evaluate the development and reproduction parameters of T. putrescentiae at 26 ± 1°C and 80 ± 5% humidity. Different P. ostreatus cultivars had significant effects on the immature stages, female fertility, and reproductive lifespan. Total egg-to-adult development time ranged from 10.0 ± 1.2 d (on Po389 cultivar) to 12.5 ± 1.0 d (on Po62 cultivar). Mite mortality ranged from 54.3 ± 4.2% (on Po86 cultivar) to 100.0 ± 0.0% (on Po62 cultivar). The number of eggs laid per female ranged from 3.2 ± 0.4 (on Po45 cultivar) to 9.1 ± 1.1 (on Po86 cultivar). The average lifespan of females ranged from 3.0 ± 0.5 d (on Po45 cultivar) to 16.3 ± 1.7 d (on Po86 cultivar). Host preference of the mite was significantly different among the nine cultivars with a preference for cultivars Po65, Po80, Po389, and Po86. These results indicate that P. ostreatus cultivars significantly affect the biology of T. putrescentiae and the relationship between mite damage and mushroom yield.

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