Changes in mRNA and protein content of SO sub 2 -fumigated maple leaves

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

OSTI ID:7189386

Stinemetz, C L ^[1]; Roberts, B R; Schnipke, V M ^[2]

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1. Ohio State Univ., Columbus (USA)
2. Dept of Agriculture, Delaware, OH (USA)

The effect of acute SO{sub 2} fumigation on foliar DNA, RNA, and protein levels in 2-yr-old containerized Acer seedlings was examined. While DNA content did not change appreciably in either SO{sub 2}-sensitive red maple (A. rubrum L.) or SO{sub 2}-tolerant silver maple (A. saccharinum L.), significant reductions in mRNA (35% for red maple; 21% for silver maple) were observed after 54 h fumigation (6 h/day {times} 3 days/wk {times} 3 wk) at 2.5 ppm SO{sub 2}. Reductions in mRNA and protein content were accompanied by a corresponding decline in net photosynthesis (Pn). The data from this study suggest that acute SO{sub 2} fumigation alters Pn in red and silver maple by disrupting molecular events, and that species sensitivity for these particular Acer spp may be related to the degree of change associated with mRNA and total protein content.

• OSTI ID: 7189386
• 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.
ATMOSPHERES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROLLED ATMOSPHERES
DNA
LEAVES
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MAPLES
NUCLEIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHYSIOLOGY
PLANTS
PROTEINS
SENSITIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNTHESIS
TOLERANCE
TOXICITY
TREES