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| | ARS : Philip E Pfeffer |
 | | Pfeffer, P.E., Shachar-Hill, Y., Tu, S., Brauer, D. Rapid and sensitive measures of intraceulluar ph in maize root tissue by a-methyl fluorinated alanines and (19)f nmr spectroscopy. |
 | | Pfeffer, P.E., Douds, D.D., Schwartz, D.P., Govindarajulu, M., Bucking, W., Shachar-Hill, Y. Bidirectional transfer of carbon and nitrogen between fungus and host in the arbuscular mycorrhizal symbiosis. |
 | | Pfeffer, P.E., Douds, D.D., Schwartz, D.P., Govindarajulu, M., Shachar-Hill, Y. The fungus does not transfer carbon to or between roots in an arbuscular mycorrhizal symbiosis. |
| www.ars.usda.gov /pandp/people/people.htm?personid=4411&pf=1 (636 words) |
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