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Figure 4 | BMC Plant Biology

Figure 4

From: Transcriptomic events associated with internal browning of apple during postharvest storage

Figure 4

Proposed model for browning development in apples during CA storage. A. Distribution of O2 for a typical ‘Braeburn’ apple exposed to CA storage conditions (3 kPa O2 and 0.7 kPa CO2) as simulated by [11]. B-C. Transcriptomic changes in the affected inner (B) and outer (C) cortex related to the gas gradient and energy potential. Induced genes in affected tissues are indicated in red, repressed genes in green, and unchanged genes in grey. AsA: ascorbic acid; ACD: aconitase dehydratase; ACT: acyl CoA thiolesterase; ACX: acyl CoA oxidase; ADH: alcohol dehydrogenase; AO: ascorbate oxidase; APX: ascorbate peroxidase; CesA: cellulose synthase; CAT: catalase; CDase: ceramidase; CoQ: coenzyme Q10; CS: citrate synthase; DHA: dehydroascorbate; DHAR: dehydroascorbate reductase; EXP: expansin; FUM: fumarate; GPP: m-galactose-1-phosphate phosphatase; HMGR: 3-hydroxy-3-methylglutaryl-CoA reductase; LDH: lactate dehydrogenase; MAL: malate; MDH: malate dehydrogenase; MDHA: monodehydroascorbate; ME: malic enzyme; MDHAR: monodehydroascorbate reductase; OAA: oxaloacetate; PAE: pectinacetylesterase; PDH: pyruvate dehydrogenase; PEP: phosphoenolpyruvate; PEPC: phosphoenolpyruvate carboxylase; PMG: phosphoglyceratemutase; PK: pyruvate kinase; PMEI: pectin methylesterase inhibitors; PPO: polyphenol oxidase; PYR: pyruvate; SDH: succinate dehydrogenase; SOD: superoxide dismutase; SPT: serine-palmitoyltransferase; SUC: succinate; XET: xyloglucanendotransglucosylase/hydrolase. LDH and MDH are followed by a question mark as MDP0000295823 encodes a putative lactate/malate dehydrogenase protein.

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