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patatin

Candidate: concept label1 source documents4 linked claims
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Extracted Explainers

What the tool is doing

The review describes patatin as the major soluble potato tuber storage protein and as a lipid acyl hydrolase with phospholipase A2-like activity. It is positioned at the intersection of storage, metabolic regulation, and defense.

Source 1DOIPubMed

What problem it solves

As framed by the review, patatin is a useful biological node for understanding and potentially improving tuber sink strength, starch deposition, and stress resilience.

Source 1DOIPubMed

What it does not solve

The abstract does not resolve which patatin isoforms are responsible for specific functions or how patatin is integrated into broader sugar-hormone networks.

Source 1DOIPubMed

Alternatives

The review points to integrated multi-omics, fluxomics, proximity-labeling, CRISPR-based isoform editing, and promoter engineering as adjacent approaches for studying or engineering this system.

Source 1DOIPubMed

Evidence Snippets

Patatin, the major soluble storage protein, constitutes up to 40% of total tuber protein. In addition to serving as a nitrogen and carbon reserve, patatin exhibits lipid acyl hydrolase (phospholipase A2-like) activity, suggesting roles in membrane remodeling and stress signaling.
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1functional role summarysupports2025Source 1DOIPubMed

Patatin is described as a multifunctional potato tuber factor that serves as a storage protein and also exhibits lipid acyl hydrolase phospholipase A2-like activity.

Claim 2knowledge gapsupports2025Source 1DOIPubMed

Major unresolved areas identified by the review include isoform-specific patatin roles, integration into sugar-hormone regulatory networks, and field-scale responses under fluctuating environments.

Claim 3process role summarysupports2025Source 1DOIPubMed

The review states that patatin contributes to carbon-nitrogen balance and tuber sink strength by affecting sucrose import, vacuolar osmotic capacity, and starch biosynthesis.

Claim 4stress response summarysupports2025Source 1DOIPubMed

Under drought, salinity, and pathogen stress, patatin transcript levels, protein stability, and enzymatic activity shift, with associated reduced starch deposition, altered sugar accumulation, osmoprotection, and reallocation toward defense responses.