Table 2.

pH-dependent rescue of root hair growth in Arabidopsis knockout mutants of Atrboh C

Genotype, treatment*Root hair density (root hairs per mm of root length)Root hair length, μm
WT, pH525 ± 7 (11) 492 ± 67 (15)
WT, pH625 ± 5 (12)343 ± 97 (24)
rhd2-1, pH50.6 ± 0.6 (16)na
rhd2-1, pH621 ± 4 (20)357 ± 71 (25)
Salk_071801, pH50.2 ± 0.2 (9)na
Salk_071801, pH625 ± 8 (8)334 ± 64 (42)
  • na, not applicable.

  • *Seedlings were grown on 1% (wt/vol) agar plates containing 1/4-strength Murashige and Skoog basal salts, 1% (wt/vol) sucrose, buffered to indicated pH with 5 mM MES/NaOH.

  • Mean values ± SD (n).