[1] Inst Politecn Nacl, CIIDIR, Unidad Oaxaca, Xoxocotlan 71230, Oaxaca, Mexico
[2] Univ Costa Rica, Ctr Invest Estruct Microscop CIEMIC, Programa Especial Interes Inst Biol Aplicada PUA, San Jose, Costa Rica
[3] Inst Fitosanidad, CP, Montecillo 56230, Edo De Mexico, Mexico
[4] Univ Nacl Autonoma Mexico IBUNAM, Inst Biol, Mexico City, DF, Mexico