CO sub 2 - toxicity in greenhouse tomato: Interaction with carbohydrate metabolism

Journal Article · Sat Apr 01 04:00:00 EST 1989 · Plant Physiology, Supplement; (USA)

OSTI ID:6604350

Tripp, K E; Peet, M M; Pharr, D M; Willits, D H ^[1]

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1. North Carolina State Univ., Raleigh (USA)

Greenhouse tomatoes grown with CO{sub 2}-enrichment at 1000 ul/l exhibit a non-epinastic foliar deformation (CO{sub 2}-toxicity). Symptoms include yellowing and purpling of the leaf blade accompanied by helical twisting and undercurling of the blade and midrib. Toxicity symptoms were more severe and yield response to CO{sub 2}-enrichment was reduced in the tomato cultivar Laura compared to Michigan-Ohio. There was no clear relationship between foliar starch concentration and toxicity severity between cultivars but CO{sub 2}-enriched plants had more foliar starch than non-enriched plants. Increased foliar soluble sugar concentrations do appear to be associated with increased toxicity severity and possibly decreased yield response to CO{sub 2}-enrichment.

• OSTI ID: 6604350
• Journal Information: Plant Physiology, Supplement; (USA), Journal Name: Plant Physiology, Supplement; (USA) Vol. 89:4; ISSN PPYSA; ISSN 0079-2241
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CARBOHYDRATES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
FOOD
FRUITS
METABOLISM
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PRODUCTIVITY
TOMATOES
TOXICITY