  The stationary bright solitons that appear in the ground state of the
spin-orbit coupled Bose-Einstein condensate (SOC-BEC) exhibit nodes. We
consider SOC-BEC in combined linear and nonlinear optical lattices and study
their effects on the matter-wave bright soliton and find that the parameters of
the nonlinear lattice or atomic scattering length can be judiciously
manipulated to have useful control over the nodes of the soliton. It is seen
that the soliton with large number of nodes is less stable compared to one
having fewer number of nodes. We infer that that the synthetic spin-orbit
coupling induces instability in the ordinary matter-wave soliton.
