Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico
This study provides valuable information on the ultrastructure and environmental conditions of the Trachelomonas Ehr. (Euglenophyceae) genus in the Guadalupe Dam, a eutrophic reservoir located in the suburbs of Mexico City, which receives a considerable volume of wastewaters. Specimens were collecte...
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todo:paper_02548704_v32_n4_p463_Solorzano2023-10-03T15:11:36Z Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico Solórzano, G.G. Martinez, M.G.O. Vazquez, A.L. Garfias, M.B.M. Zuniga, R.E.Q. Conforti, V. Dam Euglenoids Lorica Phytoplankton Ultrastructure anoxic conditions biological characteristics concentration (composition) environmental conditions eutrophic environment flagellate new record nitrogen organic matter pH phosphorus phytoplankton scanning electron microscopy species richness type specimen ultrastructure wastewater water temperature article classification Euglenida Mexico ultrastructure water supply Euglenida Mexico Water Supply Mexico [North America] Euglenida Lorica Trachelomonas This study provides valuable information on the ultrastructure and environmental conditions of the Trachelomonas Ehr. (Euglenophyceae) genus in the Guadalupe Dam, a eutrophic reservoir located in the suburbs of Mexico City, which receives a considerable volume of wastewaters. Specimens were collected at surface level between November 2005 and May 2006. Using LM and SEM twelve taxa from phytoplankton were identified of which, 9 are new records for Mexico. The reservoir is warm monomictic, with basic pH values (7.4-10.1), a high concentration of chlorophyll a (18-101 μg l-1), a permanent anoxic bottom, specific conductivity (K25) of 205 to 290 μS cm -1, N-NO3 0.19-1.2 mg l-1 and P-PO4 0.22-1.6 mg l-1. Water temperature was 15.6-23.0oC. Most of the Trachelomonas species were found during the dry season, when concentrations of organic matter, nitrogen and phosphorus as well as the temperature were the highest. Higher species richness was also associated with the warmer months. This research contributes to increase our knowledge on Trachelomonas in Mexico and constitutes the first detailed description of lorica ultrastructure of 12 taxa that grow in a body of water with high concentration of nutrients and a moderate amount of mineral contents. © 2011 Triveni Enterprises Vikas Nagar, Lucknow, INDIA. Fil:Conforti, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02548704_v32_n4_p463_Solorzano |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Dam Euglenoids Lorica Phytoplankton Ultrastructure anoxic conditions biological characteristics concentration (composition) environmental conditions eutrophic environment flagellate new record nitrogen organic matter pH phosphorus phytoplankton scanning electron microscopy species richness type specimen ultrastructure wastewater water temperature article classification Euglenida Mexico ultrastructure water supply Euglenida Mexico Water Supply Mexico [North America] Euglenida Lorica Trachelomonas |
| spellingShingle |
Dam Euglenoids Lorica Phytoplankton Ultrastructure anoxic conditions biological characteristics concentration (composition) environmental conditions eutrophic environment flagellate new record nitrogen organic matter pH phosphorus phytoplankton scanning electron microscopy species richness type specimen ultrastructure wastewater water temperature article classification Euglenida Mexico ultrastructure water supply Euglenida Mexico Water Supply Mexico [North America] Euglenida Lorica Trachelomonas Solórzano, G.G. Martinez, M.G.O. Vazquez, A.L. Garfias, M.B.M. Zuniga, R.E.Q. Conforti, V. Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico |
| topic_facet |
Dam Euglenoids Lorica Phytoplankton Ultrastructure anoxic conditions biological characteristics concentration (composition) environmental conditions eutrophic environment flagellate new record nitrogen organic matter pH phosphorus phytoplankton scanning electron microscopy species richness type specimen ultrastructure wastewater water temperature article classification Euglenida Mexico ultrastructure water supply Euglenida Mexico Water Supply Mexico [North America] Euglenida Lorica Trachelomonas |
| description |
This study provides valuable information on the ultrastructure and environmental conditions of the Trachelomonas Ehr. (Euglenophyceae) genus in the Guadalupe Dam, a eutrophic reservoir located in the suburbs of Mexico City, which receives a considerable volume of wastewaters. Specimens were collected at surface level between November 2005 and May 2006. Using LM and SEM twelve taxa from phytoplankton were identified of which, 9 are new records for Mexico. The reservoir is warm monomictic, with basic pH values (7.4-10.1), a high concentration of chlorophyll a (18-101 μg l-1), a permanent anoxic bottom, specific conductivity (K25) of 205 to 290 μS cm -1, N-NO3 0.19-1.2 mg l-1 and P-PO4 0.22-1.6 mg l-1. Water temperature was 15.6-23.0oC. Most of the Trachelomonas species were found during the dry season, when concentrations of organic matter, nitrogen and phosphorus as well as the temperature were the highest. Higher species richness was also associated with the warmer months. This research contributes to increase our knowledge on Trachelomonas in Mexico and constitutes the first detailed description of lorica ultrastructure of 12 taxa that grow in a body of water with high concentration of nutrients and a moderate amount of mineral contents. © 2011 Triveni Enterprises Vikas Nagar, Lucknow, INDIA. |
| format |
JOUR |
| author |
Solórzano, G.G. Martinez, M.G.O. Vazquez, A.L. Garfias, M.B.M. Zuniga, R.E.Q. Conforti, V. |
| author_facet |
Solórzano, G.G. Martinez, M.G.O. Vazquez, A.L. Garfias, M.B.M. Zuniga, R.E.Q. Conforti, V. |
| author_sort |
Solórzano, G.G. |
| title |
Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico |
| title_short |
Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico |
| title_full |
Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico |
| title_fullStr |
Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico |
| title_full_unstemmed |
Trachelomonas (Euglenophyta) from a eutrophic reservoir in Central Mexico |
| title_sort |
trachelomonas (euglenophyta) from a eutrophic reservoir in central mexico |
| url |
http://hdl.handle.net/20.500.12110/paper_02548704_v32_n4_p463_Solorzano |
| work_keys_str_mv |
AT solorzanogg trachelomonaseuglenophytafromaeutrophicreservoirincentralmexico AT martinezmgo trachelomonaseuglenophytafromaeutrophicreservoirincentralmexico AT vazquezal trachelomonaseuglenophytafromaeutrophicreservoirincentralmexico AT garfiasmbm trachelomonaseuglenophytafromaeutrophicreservoirincentralmexico AT zunigareq trachelomonaseuglenophytafromaeutrophicreservoirincentralmexico AT confortiv trachelomonaseuglenophytafromaeutrophicreservoirincentralmexico |
| _version_ |
1807317199905357824 |