• 동아시아식생활학회지
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• 제11권5호
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• pp.400-408
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• 2001

The mushroom pickles were prepared as a processed mushroom product. The changes in pH, total acidity, brix. color and texture of the mushroom pickles (Lentinus edodes, Pleurotus ostreatus, Agaricus bisporus and Pleurotus eryngii) were measured during storage at 4$^{\circ}C$. In addition, sensory evaluations on the mushroom pickles were performed. While the pH of Lentinus edodes and Pleurotus ostreatus pickles declined slowly, the pH of Agaricus bisporus and Pleurotus eryngii pickles declined rapidly during storage. The total acidity of Lentinus edodes pickles rose slowly, while the acidity Pleurotus ostreatus, Agaricus bisporus and Pleurotus eryngii pickles rose rapidly. As for the color of mushroom pickles, "L" , "a" and "b" values changed slightly. The changes in texture were determined by a rheometer Hardness, cohesiveness, springiness, gumminess and brittleness of Lentinus edodes pickles were lower than those of the other mushroom pickles. In the sensory evaluation of mushroom pickles, Lentinus edodes showed higher acceptability ratings than the other mushrooms in taste, color, clearness, texture and overall acceptability. This study showed that among the mushrooms tested, Lentinus edodes was the most acceptable mushroom pickle for storage.

• Asian-Australasian Journal of Animal Sciences
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• 제24권11호
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• pp.1560-1568
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• 2011

This study was conducted to evaluate the yield, nutrient characteristics, ruminal solubility, degradability and disappearance of spent mushroom (Agaricus bisporus) substrates for ruminants. The annual yield of spent Agaricus bisporus substrates was measured to be about 210,000 tons (M/T) in South Korea. The surface soil-removed spent substrates had nutritional characteristics of high crude ash (375 g/kg) and Ca (32 g/kg), medium protein (134 g/kg CP), and high fiber (384 g/kg NDF on a DM basis). Compared with initial mushroom substrates, spent mushroom substrates had twice higher (p<0.0001) CP content and 22.0% lower (p<0.0001) NDF content on an organic matter basis. Compared with raw rice straw, spent rice straw had much higher (p<0.05) predicted ruminal degradabilities and disappearances of DM and CP and a little lower (p<0.05) predicted degradability and disappearance of NDF. In conclusion, the general feed-nutritional value of spent mushroom (Agaricus bisporus) substrates appeared to improve after cultivation of mushrooms.

• 한국버섯학회지
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• 제13권3호
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• pp.175-180
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• 2015

본 연구에서는 국내외에서 수집한 A. bisporus 45계통과 19 Agaricus spp.를 포함한 64 Agaricus 계통으로부터 genomic DNA를 추출하고 7 종류의 ISSR primer를 사용하여 PCR 다형성 분석을 실시 한 바 (GA)T, (AG)YC, (GA)C and (CTC)의 ISSR primer에서 양송이 계통간 PCR다형성이 관찰 되었다. ISSR-PCR다형성 밴드가 유전적 유사도 산출에 이용되어 UPGMA cluster분석을 적용 dendrogram을 작성 한 결과 A. bisporus의 계통은 7 group으로 분류 되었으며 유사성 함수가 group 간에는 유사성 함수가 0.78에서 0.89의 유연관계를 보였다. 국내에서 최근에 개발된 새정, 새아, 새도, 새연과 교배모본인 ASI1346이 같은 그룹내에서 0.90이상의 유사성함수로 근연관계를 나타내었다. ISSR-PCR다형성 검출 결과 ASI 1038와 유래 단핵균주 S1038297와 ASI 1346S유래 S 737-110는 PCR다형성 밴드가 현저히 적게 증폭 된 것을 확인 할 수 있었다.

• 한국균학회지
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• 제45권4호
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• pp.328-335
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• 2017

In this study, we made a population with high biological efficiency (BE) to investigate the complex genetic architecture of yield-related traits in Agaricus bisporus. MB-013 crossed between bisp 015-p2 and bisp 034-p2, had high BE. Additionally MB-013 was an intervarietal hybrid that intercrosses with A. bisporus var. burnettii, bisp 015, and A. bisporus var. bisporus, bisp 034. One hundred and seventy homokaryons were selected using the cleaved amplified polymorphic sequence (CAPS) markers (PIN primer/HaeIII) from 300 single spore isolates (SSIs). One hundred $BC_1F_1$ hybrids were obtained by crossing the homokaryons of MB-013 with bisp15-p1. The population of 100 BC1F1 hybrids is suitable for analyses of BE.

• Mycobiology
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• 제44권4호
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• pp.314-318
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• 2016

Breeding the button mushroom requires genetic information about its strains. This study was undertaken to genetically characterize four domestically bred button mushroom strains (Saea, Saejung, Saedo, Saeyeon cultivars) and to assess the possibility of using the intergenic spacer 1 (IGS1) region of rDNA as a genetically variable region in the genetic characterization. For the experiment, 34 strains of Agaricus bisporus, two strains of A. bitorquis, and one strain of A. silvaticus, from 17 countries were used. Nucleotide sequence analysis of IGS1 rDNA in these 37 Agaricus strains confirmed that genetic variations exist, not only among the four domestic strains, but also between the four domestic strains and foreign strains. Crossing two different haploid strains of A. bisporus seems to generate genetic variation in the IGS1 region in their off-spring haploid strains. Phylogenetic analysis based on the IGS1 sequence revealed all A. bisporus strains could be differentiated from A. silvaticus and A. bitorquis strains. Five genetic groups were resolved among A. bisporus strains. Saejung and Saeyeon cultivars formed a separate genetic group. Our results suggest that IGS1 could be complementarily applied in the polymorphism analysis of button mushroom.

• Mycobiology
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• 제49권1호
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• pp.61-68
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• 2021

Agaricus bisporus, commonly known as the button mushroom, is widely cultivated throughout the world. To breed new strains with more desirable traits and improved adaptability, diverse germplasm, including wild accessions, is a valuable genetic resource. To better understand the genetic diversity available in A. bisporus and identify previously unknown diversity within accessions, a phylogenetic analysis of 360 Agaricus spp. accessions using single-nucleotide polymorphism genotyping was performed. Genetic relationships were compared using principal coordinate analysis (PCoA) among accessions with known origins and accessions with limited collection data. The accessions clustered into four groups based on the PCoA with regard to genetic relationships. A subset of 67 strains, which comprised a core collection where repetitive and uninformative accessions were not included, clustered into 7 groups following analysis. Two of the 170 accessions with limited collection data were identified as wild germplasm. The core collection allowed for the accurate analysis of A. bisporus genetic relationships, and accessions with an unknown pedigree were effectively grouped, allowing for origin identification, by PCoA analysis in this study.

• 한국균학회소식:학술대회논문집
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• 한국균학회 2014년도 추계학술대회 및 정기총회
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• pp.41-41
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• 2014

Agaricus bisporus, commonly known as the button mushroom, is the most widely cultivated species of edible fungi. Low frequency of recombination ratio and homokaryotic or monokaryotic spore on meiotic basidia form obstacles for breeding programs. Since the first hybrid varieties for white button mushrooms were released in Europe, new varieties released afterwards were either identical of very similar to these first hybrids on morphologies. Therefore, different DNA markers have been used to define unique varieties of A. bisporus strains. Aim of this study is to assess the genetic diversity of different A. bisporus strains in Korea. Twelve UFP (Universal fungal primer, JK BioTech. Ltd), 12 simple sequence repeat (ISSR) and 30 SSR primers were used to assess genetic diversity of monokaryotic and dikaryotic Agaricus bisporus strains including other 19 Agaricus spp. Of them, four UFP, four SSR primers, $(GA)_8T$, $(AG)_8YC$, $(GA)_8C$ and $(CTC)_6$ and seven SSR markers produced PCR polymorphic bands between the Agaricus species or within A. bisporus strains. PCR polymorphic bands were inputted for UPGMA cluster analysis. Forty five strains of A. bisporus are genetically clustered into 6 groups, showing coefficient similarity from 0.75 to 0.9 among them. In addition, genetic variations of monokaryotic and dikaryotic Agaricus bisporus strains were partially detected by PCR technologies of this study. The varieties, Saea, saedo, Saejeong and Saeyeon that have recently been developed in Korea were involved in the same group with closely genetic relationship of coefficient similarity over 0.96, whereas, other strains were genetically related to A. bisporus strains that were introduced from USA, Eroupe and Chinese.

• 한국식품과학회지
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• 제33권4호
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• pp.451-454
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• 2001

맛과 향기가 뛰어나고 고혈압 예방의 효과가 있어 식용으로 널리 이용되는 양송이(Agaricus bisporus)를 첨가한 고품질 어묵을 제조하여 색조 변화, 물성 특성 및 관능적 특성을 조사하였다. 양송이의 함유량이 증가할수록 어묵의 색도변화는 L값은 감소하는 경향, a값은 증가하는 경향, b값은 유의차가 없는 경향을 나타내었다. 또한, 어묵의 유연성을 나타내는 절곡검사의 결과로는 모든 시료에서 AA로 측정되어 양송이의 첨가에 관계없이 우수한 것으로 나타났다. 물성검사 결과에서, 양송이가 첨가될수록 어묵의 경도, 탄성, 껌성 및 파쇄성이 증가되었으며, 강도는 유의차가 보이지 않았다. 관능검사의 결과로 전체적인 선호도는 10%의 양송이를 함유한 어묵이 가장 높았다. 이상의 결과로 양송이를 함유한 고품질 어묵의 제조 가능성을 확인하였다.

• 한국버섯학회지
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• 제18권4호
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• pp.323-330
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• 2020

본 연구에서는 유럽 양송이 자원들을 SSR marker를 통해 유전적 다양성과 집단 구조, 유전적 분화에 대하여 분석하였다. 본 연구에서 유럽의 양송이 자원들은 유전적 거리기반의 4개의 그룹으로 나뉘었고 집단구조 분석을 통하여 2개의 subpopulation으로 이루어져 있었다. 본 연구에서 사용한 SSR 마커로 유럽의 양송이 자원들은 지리적 그리고 갓색으로 구분되지 않았다. 유전적 다양성은 유전적 거리기반의 그룹에서는 Group 4, 집단구조 분석을 통한 subpopulation에서는 Pop. 2의 다양성이 높았다. 그리고 양송이 자원들은 유전적 분화가 매우 낮았다. 본 연구의 결과는 차후 양송이의 육종 등에 이용 할 수 있을 것이다.

• 한국버섯학회지
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• 제19권3호
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• pp.256-259
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• 2021

현재 양송이 품종의 개발은 1980년대에 개발된 방법에 의존하여 진행되고 있다. 유전자가위를 이용한 유전자교정 기술이 다양한 분야에서 각광받고 있고, 이 기술을 버섯 육종에도 적용하기 위하여 진행된 이 연구에서는, CRISPR/Cas9 활용에 필수적인 원형질체 분리 효율을 1.0 × 10⁸/mL까지 안정적으로 끌어올렸고, spermidine을 이용하여 PEG 형질전환의 효율 또한 기존 방법에 비해 100배가량 끌어올렸음을 보고한다.