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Table 2 Buffering capacity (means ± SE in mekv/L) for free living fungi and fungus garden symbionts of attine ants.

From: Evolutionary patterns of proteinase activity in attine ant fungus gardens

Fungal species (family) Buffering capacity, mekv/L Sample size
Free-living fungi, plated   
   Agaricus bisporus (Agaricaceae) 9.6 ± 1.08 (strain 1) 5
  7.3 ± 0.92 (strain 2) 5
   Pleurotus ostreatus (Pleurotaceae) 4.95 ± 0.7 5
   Pleurotus pulmonarius (Pleurotaceae) 3.1 ± 0.12 5
   Lentinula edodes (Marasmiaceae) 2.01 ± 0.1 5
Fungus garden symbiont, plated   
   Leucocoprinus gongylophorus (Agaricaceae) 16.2 ± 2.01 3
Fungus garden symbiont, colony   
   Apterostigma collare, (Apcol1) not measured*  
   Myrmicocrypta ednaella, (Myred2) 21.92 3
   Mycocepurus smithii, (Mycsmi32) 21.89 3
   Trachymyrmex cornetzi, (Trcor1) 20.55 3
   Sericomyrmex amabilis, (Serama7) 16.74 3
   Sericomyrmex amabilis, (Serama12) 5.80** 3
   Acromyrmex echinator, (Acech322) 17.93 ± 1.54 3
   Acromyrmex octospinosus, (Acoct1) 16.80 3
   Atta colombica, (Atcol1) 17.64 3
   Atta cephalotes, (Atcep1) 22.20 3
  1. * Buffering was observed on pH test papers only, but was comparable to the other fungal garden symbionts.
  2. ** This colony of Sericomyrmex amabilis (Serama12) had an unusually solid and humid garden structure compared to all other fungus gardens examined.