[1] Univ North Carolina Greensboro, Dept Biol, Lab Plant Mol Biol & Biotechnol, Greensboro, NC 27402 USA
[2] Chinese Univ Hong Kong, Sch Life Sci, Hong Kong, Peoples R China
[3] Clemson Univ, Biogeochem & Environm Qual Res Grp, Clemson, SC 29442 USA
[4] Clemson Univ, Dep Environm Engn & Earth Sci, Clemson, SC 29634 USA
[5] US Arid Land Agr Res Ctr, USDA ARS, Cardon Ln, Maricopa, AZ USA