Sucrose metabolism and growth in transplanted loblolly pine seedlings

Shi-Jean Susana Sung; C.C. Black; Paul Kormanik

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Sucrose metabolism and growth in transplanted loblolly pine seedlings

Informally Refereed

Authors:

Shi-Jean Susana Sung, C.C. Black, Paul Kormanik

Year:

1993

Type:

Scientific Journal

Station:

Southern Research Station

Source:

Pages 369-375 in Proc. 7th Biennial Southern Silvicultural Research Conf., Mobile, AL.GTR-SO-93.

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Abstract

Loblolly pine (Pinus taeda L.) seedling height, root collar diameter, and the specific activities of three sucrose metabolizing enzymes, namely, sucrose synthase (SS), acid invertase, and neutral invertase, were measured to assess seedling responses to transplant stress. It was concluded that i) SS was the dominant enzyme for sucrose metabolism in actively growing pine stems and taproots; ii) there were decreases in seedling growth and SS activity in transplanted seedlings as compared with nontransplanted controls; and iii) SS can be used as a biochemical indicator for growth sink strength and for stress caused by transplanting.

Citation

Sung, Shi-Jean S.; Black, C.C.; Kormanik, Paul P. 1993. Sucrose metabolism and growth in transplanted loblolly pine seedlings. Pages 369-375 in Proc. 7th Biennial Southern Silvicultural Research Conf., Mobile, AL.GTR-SO-93.