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Editorial
. 2020 Aug;32(8):2449-2450.
doi: 10.1105/tpc.20.00502. Epub 2020 Jun 30.

Which Factors Control Starch Granule Initiation?

Sylvain Bischof  1
Affiliations
Editorial

Which Factors Control Starch Granule Initiation?

Sylvain Bischof. Plant Cell. 2020 Aug.
No abstract available

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Figures

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Role of SS5 in Starch Granule Initiation. (A) SS5 is a conserved starch synthase encompassing a chloroplast transit peptide (cTP), a coiled-coil domain required for its physical interaction with MRC, and a GT5 domain. SS5 lacks a conserved GT1 domain (present in SS1 to SS4) and does not function as an active canonical starch synthase. (B) SS5 fused to GFP localizes to small puncta of yet unknown function inside the chloroplast. (C) ss5−/− mutant plants do not display a strong developmental phenotype, but the shape and number of starch granules per chloroplast differ from those of the wild type (WT), indicating a function for SS5 in starch granule initiation. (Adapted from Abt et al. [2020], Figures 1, 4, and 6.)
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References

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