Identification of resistance to cobweb disease caused by<i>Cladobotryum mycophilum</i>in wild and cultivated strains of<i>Agaricus bisporus</i>and screening for bioactive botanicals

Muhammad, Idrees; Sossah, Frederick Leo; Yang, Yang; Li, Dan; Li, Shoujian; Fu, Yongping; Yu, Li

doi:10.1039/c9ra00632j

Cited by 13 publications

(8 citation statements)

References 43 publications

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“…Pink to red medium coloration has been reported before e.g. from older PDA cultures of Hypomyces / Cladobotryum strains (Back et al 2010 ; Carrasco et al 2016 ; Muhammad et al 2019 ). Hypomyces / Cladobotryum species are known to produce aurofusarin as pigment (Rogerson and Samuels 1989 ; Põldmaa 2011 ; Tamm and Põldmaa 2013 ; Carrasco et al 2016 ) which changes in color from yellow to red depending on the pH (Ashley et al 1937 ).…”

Section: Resultsmentioning

confidence: 63%

Mycoparasite Hypomyces odoratus infests Agaricus xanthodermus fruiting bodies in nature

2020

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Mycopathogens are serious threats to the crops in commercial mushroom cultivations. In contrast, little is yet known on their occurrence and behaviour in nature. Cobweb infections by a conidiogenous Cladobotryum -type fungus identified by morphology and ITS sequences as Hypomyces odoratus were observed in the year 2015 on primordia and young and mature fruiting bodies of Agaricus xanthodermus in the wild. Progress in development and morphologies of fruiting bodies were affected by the infections. Infested structures aged and decayed prematurely. The mycoparasites tended by mycelial growth from the surroundings to infect healthy fungal structures. They entered from the base of the stipes to grow upwards and eventually also onto lamellae and caps. Isolated H. odoratus strains from a diseased standing mushroom, from a decaying overturned mushroom stipe and from rotting plant material infected mushrooms of different species of the genus Agaricus while Pleurotus ostreatus fruiting bodies were largely resistant. Growing and grown A. xanthodermus and P. ostreatus mycelium showed degrees of resistance against the mycopathogen, in contrast to mycelium of Coprinopsis cinerea . Mycelial morphological characteristics (colonies, conidiophores and conidia, chlamydospores, microsclerotia, pulvinate stroma) and variations of five different H. odoratus isolates are presented. In pH-dependent manner, H. odoratus strains stained growth media by pigment production yellow (acidic pH range) or pinkish-red (neutral to slightly alkaline pH range).

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Section: Resultsmentioning

confidence: 63%

Mycoparasite Hypomyces odoratus infests Agaricus xanthodermus fruiting bodies in nature

2020

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“…Mushrooms are rich sources of carbohydrates, proteins and macro‐ and micro‐elements with low fats contents. Peaks and spectra created by FTIR could well elaborate compositional analysis based on functional groups . The significance of FTIR was its ability for more specific characterization of nucleic acid, proteins, sugars, lipids, starch and macrostructure through functional groups .…”

Section: Resultsmentioning

confidence: 99%

“…The significance of FTIR was its ability for more specific characterization of nucleic acid, proteins, sugars, lipids, starch and macrostructure through functional groups . Some early studies delineated chemical characteristics for truffles and various species of Amanita and Agaricus bisporus using peaks and functional groups by FTIR spectra . One of the objectives of this study was to verify whether various concentrations of GB affect the nutritional profile of king oyster strains as FTIR is a non‐destructive, rapid and phase interval technique that can recognize an inclusive range of functional groups and very sensitive to dissimilarity occurring in molecular structure.…”

Section: Resultsmentioning

confidence: 99%

“…Peaks and spectra created by FTIR could well elaborate compositional analysis based on functional groups. 55 The significance of FTIR was its ability for more specific characterization of nucleic acid, proteins, sugars, lipids, starch and macrostructure through functional groups. 56 Some early studies delineated chemical characteristics for truffles and various species of Amanita and Agaricus bisporus using peaks and functional groups by FTIR spectra.…”

Section: Ftir-atr Characterizationmentioning

confidence: 99%

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Modulation of agronomic and nutritional response of Pleurotus eryngii strains by utilizing glycine betaine enriched cotton waste

Khan

Muhammad

et al. 2019

J Sci Food Agric

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BACKGROUND This study aimed to evaluate the possibility of cotton waste enrichment with glycine betaine (GB) for production of two strains (P9, P10) of king oyster (Pleurotus eryngii). Cotton waste was used as (100%) control (T0 = cotton waste) and augmented with various combinations of GB, (T1 = 2 mmol L−1, T2 = 4 mmol L−1, T3 = 6 mmol L−1, T4 = 8 mmol L−1 and T5 = 10 mmol L−1). The response of king oyster to GB was evaluated by earliness, yield, biological efficiency (BE), minerals (nitrogen, phosphorus, potassium, zinc (Zn), copper (Cu), magnesium (Mg), manganese (Mn), iron (Fe), sodium (Na), calcium (Ca)), total sugars, total soluble solids, reducing sugars, non‐reducing sugars, ascorbic acid, proximate (crude protein, carbohydrates, crude fibers, ash, fats) content of fruiting body and Fourier‐transform infrared (FTIR) spectroscopy analysis compared with the control substrate (cotton waste). RESULTS The earliness, yield, and BE were higher as compared to control substrate and increased with an augmentation in the concentration of GB within the cotton waste. Two strains showed (on dry weight basis) 33.9–54.9 mg g−1 nitrogen, 6.8–12.5 mg g−1 phosphorus, 16.9–25.1 mg g−1 potassium, 40.5–64.2 mg kg−1 Zn, 17.1–37.3 mg kg−1 Cu, 1174–1325 mg kg−1 Mg, 20.1–29.1 mg kg−1 Mn, 129–265 mg kg−1 Fe, 779–835 mg kg−1 Ca), 6.3%–11.3% total sugars, 7.3–14.9 °Brix total soluble solids, 2.1–7.3% reducing sugars, 10.4–18.1% crude protein, 3.6–4.4% crude fiber and 5.6–16.7 mg (100 g)‐1 on various concentration of GB enrich cotton waste. Cotton waste enriched with GB significantly affected nutritional profile of king oyster mushroom. CONCLUSION The results revealed that GB enriched cotton waste can be used as an innovative substrate to enhance the yield and quality of king oyster mushroom. © 2019 Society of Chemical Industry

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“…Some early studies outlined the chemical characteristics for Agaricus bisporus and various strains of Pleurotus eryngii using peaks and functional groups detected by FTIR spectra (Idrees et al, 2019;Khan et al, 2019). One of the objectives of this study was to evaluate the differences between various strains of A. cornea mushroom, as FTIR is a non-destructive, quick and phase-interval method that is highly sensitive to dissimilarities occurring in the molecular structure and identifies a wide range of functional groups (Muhammad et al, 2019).…”

Section: Ftir Spectra Of a Cornea Strainsmentioning

confidence: 99%

A comparative study of growth, biological efficiency, antioxidant activity and molecular structure in wild and commercially cultivated Auricularia cornea strains

Khan

Yao

Idrees

et al. 2020

Folia Horticulturae

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Auricularia cornea, jelly mushroom, is a popular ingredient of traditional Chinese cuisine. This study aimed at evaluating the growth, yield, biological efficiency, total phenolic and flavonoid contents, the antioxidant activity, elemental composition, and molecular structure of the wild and domesticated strain Ac24 and the commercially cultivated edible mushroom A. cornea strains Ac1, Ac3 and Ac15. Based on the weight of the fresh fruiting bodies of A. cornea strains, the maximum yield was obtained from commercial strain Ac1 (237.10 g), followed by Ac3 (224.47 g), Ac15 (158 g) and Ac24 (132.37 g), while the biological efficiency range of A. cornea strains was 52.94–94.84%, with significant differences among the A. cornea strains. Our results revealed that Ac24 contained the highest phenolic content (20.10 mg GAE · g−1), while the highest flavonoid content was found in Ac1 (35.13 mg CE · g−1). The maximum mineral contents and the strains were as follows: copper (7.2 mg · kg−1) and zinc (310 mg · kg−1) in Ac1, manganese (788 mg · kg−1) in Ac3 and iron (310 mg · kg−1) in Ac24. DPPH assay found maximum antioxidant activity in Ac24 (IC50 0.233 mg TX · mL−1), FRAP (591 mg TX · g−1) in Ac15, and erythrocyte haemolysis in Ac24. SEM-EDX and FTIR analyses verified the differences among A. cornea strains. The results revealed that wild, domesticated A. cornea strain Ac24 is a promising dietary source of natural antioxidants and is of high nutritional value, compared to commercially cultivated strains.

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Identification of resistance to cobweb disease caused byCladobotryum mycophilumin wild and cultivated strains ofAgaricus bisporusand screening for bioactive botanicals

Abstract: Outbreaks of cobweb disease are becoming increasingly prevalent globally, severely affecting the quality and yield of Agaricus bisporus.

Cited by 13 publications

References 43 publications

Mycoparasite Hypomyces odoratus infests Agaricus xanthodermus fruiting bodies in nature

Mycoparasite Hypomyces odoratus infests Agaricus xanthodermus fruiting bodies in nature

Modulation of agronomic and nutritional response of Pleurotus eryngii strains by utilizing glycine betaine enriched cotton waste

A comparative study of growth, biological efficiency, antioxidant activity and molecular structure in wild and commercially cultivated Auricularia cornea strains

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