Effects of clay addition on soil protease activities in Andosols in the presence of cadmium

2010 ◽  
Vol 56 (4) ◽  
pp. 560-569 ◽  
Author(s):  
Fereshteh Shahriari ◽  
Teruo Higashi ◽  
Kenji Tamura
Keyword(s):  
Soil Protease

scholarly journals Effects of organic inputs derived from pea and wheat root functional traits on soil protease activities

Pedobiologia ◽  
2019 ◽  
Vol 77 ◽  
pp. 150576
Author(s):  
Nicolas Romillac ◽  
Séverine Piutti ◽  
Bernard Amiaud ◽  
Sophie Slezack-Deschaumes
Keyword(s):  
Functional Traits ◽  
Wheat Root ◽  
Root Functional Traits ◽  
Soil Protease

Estimate of the source of soil protease in upland fields

1994 ◽  
Vol 18 (4) ◽  
pp. 341-346 ◽  
Author(s):  
K. Watanabe ◽  
K. Hayano
Keyword(s):  
Soil Protease

scholarly journals Synthesis of methods used to assess soil protease activity

2021 ◽  
Vol 158 ◽  
pp. 108277
Author(s):  
Lucy M. Greenfield ◽  
Jérémy Puissant ◽  
Davey L. Jones
Keyword(s):  
Protease Activity ◽  
Soil Protease

Source of soil protease in paddy fields

1993 ◽  
Vol 39 (11) ◽  
pp. 1035-1040 ◽  
Author(s):  
Katsuji Watanabe ◽  
Koichi Hayano
Keyword(s):  
Organic Manure ◽  
Paddy Fields ◽  
Neutral Protease ◽  
Extracellular Proteases ◽  
Metal Chelator ◽  
Bacillus Spp ◽  
Soil Protease ◽  
Neutral Proteases ◽  
Extractable Soil ◽  
Properties Of Soil

Properties of soil proteases and proteases from Bacillus spp. obtained from water-logged paddy fields treated with organic manure or chemical fertilizer or not treated with fertilizer were compared to elucidate the sources of soil proteases. The major extractable soil proteases were metal chelator sensitive neutral proteases that were active in hydrolyzing benzyloxycarbonyl-L-phenylalanyl-L-leucine and benzyloxycarbonyl-L-phenylalanyl-L-tyrosyl-L-leucine. In this respect they resembled extracellular proteases from Bacillus subtilis (six isolates), Bacillus cereus (four isolates), and Bacillus mycoides (three isolates) isolated from the same fields. The major extractable soil protease from the manured field was a serine neutral protease that was active in hydrolyzing casein. It resembled an extracellular protease from B. subtilis (eight isolates) isolated from the same field. Extractable soil proteases accounted for 18–96% of the total soil protease in the aforementioned soil. We concluded that a major source of soil protease in water-logged paddy fields is proteolytic Bacillus spp.Key words: soil protease, metal chelator sensitive neutral protease, serine neutral protease, proteolytic Bacillus spp.

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