Claim · model-written summary
Most proplastids in relatively healthy cells near calcium deficient autolytic cells lacked starch, whereas control proplastids contained abundant starch.
- Taxon
- potato
Solanum tuberosumt0 - Organ / stage
- proplastidse0
- Treatment
- calcium deficiencye0
- Outcome
- starche0
- Direction
- did not containe0
- Comparator
- control plantse0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Most of the proplastids in relatively healthy‐looking cells in the neighborhood of the cells with calcium deficiency autolysis did not contain starch, while starch was abundant in most of the proplastids in the corresponding tissue of the control plants.”
t0“developing potato sprouts”
Title
Calcium deficiency and plant ultrastructure
Ch. Hecht‐Buchholz Communications in Soil Science and Plant Analysis 1979. doi:10.1080/00103627909366879
Other claims from this paper (3)
- Observation Calcium deficient potato sprouts showed early cytoplasm degeneration beside cells with severe autolysis.
- Observation Early cytoplasm breakdown involved plasmalemma protrusions and disintegration, degenerative vesicles and tonoplast disintegration.
- Mechanism The authors attributed the starch deficit to retarded growth of calcium deficient sprouts.