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Table 4 Diversity indices of amoA-AOA, amoA-AOB, nirK, nirS, and nosZ communities under different salt and alkali stresses in a calcareous desert soil

From: Saline and alkaline stresses alter soil properties and composition and structure of gene-based nitrifier and denitrifier communities in a calcareous desert soil

 

Chao1

Shannon

amoA-AOA

amoA-AOB

nirK

nirS

nosZ

amoA-AOA

amoA-AOB

nirK

nirS

nosZ

CK

43.51 a

486.03 a

425.56 a

324.68 b

194.53 c

2.07 ab

2.60 a

4.80 a

4.40 b

0.67 a

CS

43.90 a

543.02 a

360.05 b

372.77 a

263.40 b

1.80 b

1.90 b

4.04 c

5.09 a

0.62 a

SS

41.62 a

516.82 a

362.20 b

402.67 a

367.40 a

2.53 a

1.82 b

3.93 c

5.19 a

0.69 a

AS

33.42 b

258.74 b

413.12 a

396.40 a

326.62 a

2.50 a

2.61 a

4.31 b

4.24 b

0.65 a

  1. CK, control treatment without salt or alkali stress; CS, NaCl stress treatment; SS, Na2SO4 stress treatment; and AS, Na2CO3 + NaHCO3 stress treatment. Different lowercase letters in the same column indicate significant differences among treatments (P < 0.05)
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BMC Microbiology

ISSN: 1471-2180

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