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Fig. 2. Phenotypic characterisation of wild-type and atscar mutant
plants. (A) Leaf overview of the mutant SALK-039449. (B)
Leaf overview of the mutant SALK-124023. (C) Wild-type leaf.
(D,E) Trichomes on leaves of the mutant SALK-039449 and
SALK-124023, respectively. The mutants have slightly distorted
trichomes and the branches are not regularly arranged as can be seen by the
larger distance between the two branching points. (F) Wild-type
trichome. (G,H) Dark-grown hypocotyl of the mutants
SALK-039449 and SALK-124023, respectively. Some cells are
disconnected from their neighbouring cells and bend outwards. (I) Dark
grown wild-type hypocotyl. (J,K) 8-day-old dark-grown seedlings
of the mutant SALK-039449 and SALK-124023, respectively. The
seedlings already show developed petioles, cotyledons, and the first pair of
true leaves. Note the long petioles. (L) 8-day-old dark-grown wild-type
seedlings. (M) Overview of rosette leaves of the atscar2;
atscar4 double mutant. (N) Overview of rosette leaves of the
atscar4 single mutant. (O) Trichome of the atscar2;
atscar4 double mutant displaying the distorted phenotype. (P)
Trichome of the atscar4 single mutant. (Q) Measurements of the
distance between the lower and upper branch point of trichomes. Only
atscar2 mutants show differences to wild type. Scale bars: 1 mm in L,
M and N; 0.4 mm in O; 0.2 mm in P.
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