Descripción de la morfología microscópica de comunidades de nostoc sp, provenientes de la parroquia de Pintag provincia de Pichincha.
This research describes the microscopic morphology of Nostoc sp., from Pintag (Pichincha), in relation to weather variables from May to September 2015. The features evaluated from the samples were: diameter of cells (µm), heterocyst diameter (µm), mucilage area (µm²), filament length (µm) and...
| Autor Principal: | Ortega Tapia, Geovanny Daniel |
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| Otros Autores: | Vinueza López, Felipe David |
| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: |
http://dspace.ups.edu.ec/handle/123456789/13229 |
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| Sumario: |
This research describes the microscopic morphology of Nostoc sp., from Pintag
(Pichincha), in relation to weather variables from May to September 2015. The
features evaluated from the samples were: diameter of cells (µm), heterocyst
diameter (µm), mucilage area (µm²), filament length (µm) and heterocyst number in
relation to one hundred vegetative cells. Fifteen samples were analyzed using as
reference the temperature, precipitation, relative humidity and solar radiation.
Each sample was hydrated and settled on plates with methylene blue to be observed
with a microscopy. In the data analysis, according to Pearson correlations, the
heterocyst number, filament length and mucilage area do not present any correlation
with the weather variables studied. Vegetative cells diameter, displayed correlation
with the solar radiation (r = 0.95 / p= 0.01) but does not present any kind of
correlation with the other weather variables (p>0.05). The heterocyst diameter
indicated that solar radiation is correlated (r = 0.93 / p=0.019), the same for the
relative humidity (r = -0,89 / p=0.04), but the temperature and precipitation (p>0.05)
do not present correlation. Multiple lineal regression shows correlation between
heterocyst number vs. temperature, solar radiation and precipitation, showing that
morphological variables depend on the surrounding weather conditions. |
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