Exact(12)
Leaf starch excess.
12284_2014_32_MOESM1_ESM.xlsx Additional file 1: Table S1.: Leaf Starch Excess (LSE) mutants in angiosperms.
Starch excess in leaves is often observed when inhibition of starch degradation occurs in mesophyll cells.
Seedlings of this mutant accumulated excess starch in the leaf blades, and the mutant was designated Leaf Starch Excess 1 (LSE1).
From this screening, we isolated a rice mutant that exhibits hyperaccumulation of starch in leaves and designated it as the Leaf Starch Excess 1 (LSE1) mutant.
Any inhibition in export of photoassimilate from leaves can induce starch excess in the leaves (Additional file 1: Table S1, and references therein).
Similar(46)
Starch-excess phenomena can also be caused by inhibition of photoassimilate export from leaves.
Figure 1 Starch-excess phenotypes of rice lse mutants at the fifth leaf stage.
For example, cold-girdling of the stem induces the starch-excess phenomenon by impairing photoassimilate transport (e.g., Krapp et al. [1993]; Slewinski et al. [2009]).
Meanwhile, it is intriguing that the starch-excess phenotype was evident in leaf sheaths of the fifth leaves of lse2 seedlings (Figure 4C,D) but not in the slowly developing leaf blade (Figure 1; Figure 4A,B).
This hypothesis is supported by the fact that bundle sheath cells of rice leaf blades can synthesize starch from excess photoassimilate and can also probably degrade it, because hyperaccumulation of starch granules can be found in bundle sheath cells of lse1 leaves lacking a starch-degrading enzyme (Figure 2B,F).
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