CARBON USE BY THE ENDANGERED TEXAS WILD RICE (ZIZANIA TEXANA, POACEAE)

Citation

Material Information

Title:
CARBON USE BY THE ENDANGERED TEXAS WILD RICE (ZIZANIA TEXANA, POACEAE)
Series Title:
SIDA, Contributions to Botany
Creator:
Power, Paula
Doyle, Robert D.
Publisher:
BOTANICAL RESEARCH INSTITUTE OF TEXAS, INC.
Publication Date:
Language:
English/Spanish

Subjects

Subjects / Keywords:
Carbon Dioxide ( local )
Wild Rice ( local )
Photosynthesis ( local )
Ph ( local )
Endangered Species ( local )
Alkalinity ( local )
River Water ( local )
Stems ( local )
Macrophytes ( local )
Water Management ( local )
Genre:
serial ( sobekcm )

Notes

Abstract:
A pH drift experiment was conducted to determine the HCO₃⁻ uptake potential of Texas wild rice (Zizania texana Hitchc). In 15 separate experimental runs, total inorganic carbon to alkalinity ratio varied between 0.93-0.99 and final pH varied between 8.54-9.21, strongly suggesting Texas wild rice is an obligate COâ‚‚ plant unable to utilize HCO₃⁻. The estimated COâ‚‚ compensation point for Texas wild rice is 2 μmol 1⁻¹. Data from this study provide physiological evidence for the positive relationship between current velocity and biomass productivity observed in Texas wild rice (Power 1996a, 1996b, 2000; Poole & Bowles 1999; Saunders et al. 2001) and provides water resource managers with information they need to manage and protect the San Marcos River ecosystem. Un experimento de la variación del pH fue utilizado para determinar el potencial de absorción de HCO₃⁻ del arroz salvaje de Tejas (Zizania texana Hitchc.). En 15 experimentos separados, la relación entre el carbono inorgánico y la alcalinidad varió entre 0,93-0,99 y el pH final varió entre 8,54-9,21, sugiriendo que el arroz salvaje de Tejas es una planta COâ‚‚ obligatoria incapaz de utilizar el HCO₃⁻. El punto estimado de compensación del COâ‚‚ en el arroz salvaje de Tejas es 2 μmol 1⁻¹. Los datos de este estudio proporcionan la evidencia fisiológica para la relación positiva entre la velocidad actual y la producción de la biomasa observadas en el arroz salvaje de Tejas (Power 1996a, 1996b, 2002; Poole y Bowles 1999; Saunders et al. 2001) y ofrecen a los encargados de los recursos hídricos la información que necesitan manejar y proteger el ecosistema del río San Marcos.
Original Version:
SIDA, Contributions to Botany, Vol. 21, no. 1 (2004-08-20).

Record Information

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University of South Florida Library
Holding Location:
University of South Florida
Rights Management:
This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.

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