scholarly journals Selection of Superior Strains from Collected Ear Mushrooms for Artificial Cultivation and Their Optimal Condition of Mycelial Growth

2014 ◽  
Vol 42 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Jeong-Han Kim ◽  
Yun-Hae Lee ◽  
Myoung-Jun Jang ◽  
Seon-Yi Won ◽  
Young-Cheoul Ju
Keyword(s):  
Optimal Condition ◽  
Mycelial Growth ◽  
Selection Of ◽  
Artificial Cultivation

scholarly journals Selection of filamentous fungi that are resistant to the herbicides atrazine, glyphosate and pendimethalin

2021 ◽  
Vol 43 ◽  
pp. e51656
Author(s):  
Nara Priscila Barbosa Bravim ◽  
Anatércia Ferreira Alves ◽  
José Fábio França Orlanda ◽  
Patricia Barbosa Rodrigues Silva
Keyword(s):  
Filamentous Fungi ◽  
Mycelial Growth ◽  
Culture Medium ◽  
Agricultural Soils ◽  
Culture Media ◽  
Fusarium Verticillioides ◽  
Fungal Growth ◽  
Relative Growth ◽  
Maximum Inhibition ◽  
Selection Of

The objective of the present study was to isolate fungi from agricultural soils and evaluate fungal growth in culture medium contaminated with atrazine, glyphosate and pendimethalin. Filamentous fungi were isolated from agricultural soils and cultured in a modified culture medium containing 0, 10, 20, 50, and 100 μg mL-1 atrazine, glyphosate and pendimethalin for 14 days at 28°C. The fungi that presented optimal and satisfactory growth were plated in Sabouraud culture medium with 4% dextrose and containing the herbicides at concentrations of 0, 10, 20, 50, and 100 μg mL-1 for seven days at 28°C. The mean mycelial growth values were submitted to analysis of variance and the Tukey test (p < 0.05%) for comparison and relative growth determination, and maximum inhibition rates were calculated. The isolated fungi Aspergillus fumigatus, Fusarium verticillioides and Penicillium citrinum were shown to be resistant to atrazine, glyphosate and pendimethalin. F. verticillioides showed higher mean mycelial growth in the culture media contaminated with atrazine and glyphosate than the other two fungi. In the culture medium contaminated with pendimethalin, F. verticillioides, and A. fumigatus presented the highest mean mycelial growth values.

Collection, characterization, and utilization of germ plasm of Lentinula edodes

1995 ◽  
Vol 73 (S1) ◽  
pp. 955-961 ◽  
Author(s):  
S. T. Chang ◽  
H. S. Kwan ◽  
Y. N. Kang
Keyword(s):  
Molecular Markers ◽  
Mycelial Growth ◽  
Germ Plasm ◽  
Lentinula Edodes ◽  
Molecular Genetic ◽  
Genetic Maps ◽  
Mating Types ◽  
Genomic Fingerprinting ◽  
Polymerase Chain ◽  
Selection Of

Wild and cultivated strains of Lentinula edodes have been collected to form a germ-plasm bank of the mushroom. In addition to the ecological, morphological, and physical properties, the strains were characterized to determine their mating types (alleles of A and B incompatibility factors), substrate degradation abilities, mycelial growth rates, and fruiting abilities. The strains were used to establish molecular genetic methods of strain authentification. The genomic fingerprinting method of arbitrarily primed polymerase chain reaction was found to be a better method than the rDNA internal transcribed spacer regions sequence comparison for L. edodes strain typing. The utilization of the characterized germ-plasm bank for the selection of desirable germ plasm for breeding and cultivation is described. The value and use of molecular markers and genetic maps is also discussed. Key words: mating types, mycelial growth rate, molecular markers.

scholarly journals Evaluation of Phenamacril and Ipconazole for Control of Rice Bakanae Disease Caused by Fusarium fujikuroi

Plant Disease ◽  
2018 ◽  
Vol 102 (7) ◽  
pp. 1234-1239 ◽  
Author(s):  
Meixia Li ◽  
Tao Li ◽  
Yabing Duan ◽  
Ying Yang ◽  
Jian Wu ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Spore Germination ◽  
Fungicide Resistance ◽  
Mycelial Growth ◽  
Fusarium Fujikuroi ◽  
Rice Cultivars ◽  
Bakanae Disease ◽  
Field Isolates ◽  
High Antifungal Activity ◽  
Selection Of

This study evaluated the use of phenamacril and ipconazole, alone and in mixtures, for the control of rice bakanae disease caused by Fusarium fujikuroi. Mixtures were studied with the goal of reducing the selection of fungicide-resistant field isolates of the fungus. When tested alone, both phenamacril and ipconazole exhibited high antifungal activity against F. fujikuroi mycelial growth; the average EC50 value for 19 field isolates was 0.1544 μg/ml for phenamacril and 0.0472 μg/ml for ipconazole. A 2:1 mixture of phenamacril and ipconazole caused a slightly synergistic (greater than additive) inhibition of mycelial growth. Inhibition of F. fujikuroi sporulation was highest for ipconazole alone, intermediate with the 2:1 mixture, and lowest for phenamacril alone. Inhibition by phenamacril and ipconazole alone or by the 2:1 mixture was substantially lower for spore germination than for mycelial growth or sporulation. When the total fungicide concentration was <24 g of a.i./100 kg of treated rice seeds, the fungicides, whether alone or in the 2:1 mixture, were not phytotoxic to seeds or seedlings of two rice cultivars. In a greenhouse experiment, the 2:1 mixture of phenamacril and ipconazole at 6 g of a.i./100 kg of treated seeds provided 100% control of rice bakanae disease on two cultivars. Overall, the results indicate that the use of a 2:1 mixture of phenamacril and ipconazole should control rice bakanae disease while reducing the occurrence of fungicide resistance in F. fujikuroi.

scholarly journals The Suitable Condition for Mycelial Growth of Volvariella volvacea strains and Selection of the Superior strain

2009 ◽  
Vol 37 (2) ◽  
pp. 173-180
Author(s):  
Myoung-Jun Jang ◽  
Han-Bum Lee ◽  
Jeong-Han Kim ◽  
Yun-Hae Lee ◽  
Young-Cheol Ju
Keyword(s):  
Mycelial Growth ◽  
Suitable Condition ◽  
Volvariella Volvacea ◽  
Selection Of

scholarly journals GROWTH RHYTHMS OF THREE Ormosia SPECIES SEEDLINGS OF DIFFERENT PROVENANCES

2019 ◽  
Vol 43 (6) ◽  
Author(s):  
Quanquan Jia ◽  
Haiyan Deng ◽  
Xiaoyong Mo ◽  
Liting Liu
Keyword(s):  
Mathematical Model ◽  
Ecological Restoration ◽  
Growth Curve ◽  
Growth Increment ◽  
First Year ◽  
Cultivation Methods ◽  
Selection Of ◽  
Artificial Cultivation

ABSTRACT The superior provenance is a prerequisite for ecological restoration, and a better mastery on the growth rhythms of Ormosia species is fundamental to reforest effectively. For the selection of better provenance and the formulation of artificial cultivation methods, the height and the ground diameter of Ormosia hosiei Hemsl. et Wils., O. xylocarpa Chun ex L. Chen and O. henryi Prain seedlings of different provenances were monitored in the first year. The results showed that their dynamic growths presented a slow-fast-slow trend that fit a “S” growth curve by the logistic mathematical model, and the growth of Ormosia species seedlings of different provenances significantly differed. The accumulated growth increment of O. xylocarpa was the largest (averagely 45.50 cm) and the accumulated growth increment of O. henryi was the least (averagely 20.33 cm). Thus, O. hosiei of Jiujiang provenance, O. xylocarpa of Liping provenance and O. henryi of Longquan provenance have a stronger adaptability for future artificial cultivation in Jiangxi China.

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