OPDA
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Old Yellow Enzyme from Brevibacillus nitrificans functions as 12-oxo-phytodienoic acid reductase in planta
Old Yellow Enzymes (OYEs) are a widely distributed family of ene-reductases that were first described in a Saccharomyces cerevisiae ferment. In plants, cis-12-oxo-phytodienoic acid (cis-OPDA) reductase (OPR) is the best studied OYE. In Arabidopsis thaliana, the peroxisomal AtOPR3 was characterized as the major OPDA reductase, which generates 3-oxo-2-(2-pentenyl)-cyclopentane-1-octanoic acid in the jasmonic acid (JA) biosynthesis.
Avoiding Structural Failure Modes in Tabular Fair SSL: Online Primal-Dual Allocation under Confidence Gating
Announce Type: replace Abstract: Semi-supervised learning (SSL) enables prediction with limited labels, but high-stakes tabular applications (medical, credit, recidivism) require statistical fairness guarantees. We identify a structural conflict in tabular fair SSL through a diagnostic stress test: under confidence-gated pseudo-labeling, moment-matching fairness regularizers can trigger two failure modes -- Masking Collapse (fairness erodes confidence, starving pseudo-labels) and Trivial...