2024-03-29T10:51:38Zhttp://dspace.ups.edu.ec/oai/requestoai:dspace.ups.edu.ec:123456789/87862015-04-16T22:16:24Zcom_123456789_5415com_123456789_5394com_123456789_5388col_123456789_5450
Yánez, Patricio
2015-04-16T22:16:24Z
2015-04-16T22:16:24Z
2009-06
http://dspace.ups.edu.ec/handle/123456789/8786
The Andean bleak plateau and the cloud forest are typically Andean mountain vegetal formations. Both of them
have modified their altitudinal arrangement repeatedly in the past as an answer to natural global climatic changes
and could do likewise as an answer to future climatic changes, either of natural or anthropogenic character.
Accordingly, these formations can be considered mobile landscape elements in space-time which can
modify their location and extension in different scenarios produced by the above mentioned climatic changes.
The present article describes some characteristics of the bleak plateau, the cloud forest and the transition
area between them, including possible answers of these structures and their species to four probable scenarios
in the future: the natural ascending of the Andean Cordillera and the chains thereof, a relatively long interglacial
period, the development of a glacial period, and last but not least the greenhouse effect.
es
openAccess
ANDES
PÁRAMO
BOSQUE NUBLADO
PERIODOS GLACIARES E INTERGLACIARES
EFECTO INVERNADERO
La zona transicional páramo-bosque nublado: un elemento paisajístico móvil en el espacio tiempo
Article
oai:dspace.ups.edu.ec:123456789/87502015-04-16T19:38:54Zcom_123456789_5415com_123456789_5394com_123456789_5388col_123456789_5450
Falconí Narváez, Esteban
2015-04-16T19:38:54Z
2015-04-16T19:38:54Z
2009-06
http://dspace.ups.edu.ec/handle/123456789/8750
es
openAccess
AGROCOMBUSTIBLES
BIOCOMBUSTIBLES
SEGURIDAD ALIMENTARIA
ECUADOR
AGRO-BIOTECNOLOGÍA
¿Bio? combustibles: perspectiva ambiental y geopolítica
Article
oai:dspace.ups.edu.ec:123456789/87482015-04-16T19:28:01Zcom_123456789_5415com_123456789_5394com_123456789_5388col_123456789_5450
Delgado Fernández, Ernesto
Vásquez Matute, Santiago
Icaza Samaniego, Ximena
2015-04-16T19:28:01Z
2015-04-16T19:28:01Z
2009-06
http://dspace.ups.edu.ec/handle/123456789/8748
La presente es una investigación acerca de la actividad biológica de hongos endófitos aislados de dos plan tas consideradas medicinales Chuquiragua jussieui J.F. Gmel y Bidensandicola Kunth, recolectadas en tres zonas diferentes del parque nacional Cajas de Cuenca, Ecuador. Los taxafúngicos más frecuentes fueron: Alternaria, Fusarium, Nigrospo ra, Pho ma, Coe lomy ce tes, el ma yor por cen ta je de in fes ta ción co rres pon dió a los de no mi na dos
«My ce lia ste ri lia» (mi ce lios es té ri les) sien do de par ti cu lar in te rés su ac ti vi dad an ta go nis ta. Se eva luó in vitro, la
in te rac ción an ta gó ni ca de es tos hon gos endófitos, fren te, a hon gos fi to pa tó ge nos: Botry tis ci ne rea, Ph rag mi dium
dis ci flo rum, Co lle to tri chum gloes po roi des, Oi dium Sp. Guig nar dia ci tri car pa, Pes ta lo tia Sp. Plas mo pa ra viticola, Pyt hium
Sp. Taph ri na de for mans, Fu ma go Sp. Mo ni lia ro re ri, Ce ra tocys tis fim bria ta, Bre mia lac tu cae. Los re sul ta dos más pro -
me te do res se evi den cia ron en ais la dos de «My ce lia ste ri lia» (es truc tu ras no es po ri fi can tes) con un por cen ta -
je del 89,1% fren te al Co lle to tri chum gloes po roi des agen te cau sal de la an trac no sis en el to ma te de ár bol. Ade -
más se hi zo el aná li sis in vitro fren te a bac te rias fi to pa tó ge nas de los gé ne ros: Er wi nia Sp. Agro bac te rium tu me fa -
cens, Pseu do mo nas Sp. y Xant ho mo nas Sp. Al gu nas ce pas de hon gos endófitos de los ta xa men cio na dos, pre sen -
ta ron ac ti vi dad an ta go nis ta, el ob je ti vo de es ta in ves ti ga ción y aná li sis es de ter mi nar los ni ve les y por cen ta jes
de an ta go nis mo, pa ra el uso de los hon gos en dó fi tos en el con trol de en fer me da des fi to pa tó ge nas cau sa das
por hon gos y bac te rias. Los re sul ta dos son muy sa tis fac to rios, se gún lo en con tra do.
es
openAccess
Actividad biológica de hongos endófitos presentes en dos plantas medicinales chuquirahua (Chu qui ra gua jus sieui J. F. Gmel) y ñachag (Bi dens an di co la Kunth)
Article
oai:dspace.ups.edu.ec:123456789/87572015-04-16T22:51:29Zcom_123456789_5415com_123456789_5394com_123456789_5388col_123456789_5450
Cerna, Marco
Tafur, Valdano
2015-04-16T19:56:25Z
2015-04-16T19:56:25Z
2009-06
http://dspace.ups.edu.ec/handle/123456789/8757
In the framework of this investigation the techniques were designed for the propagation of meristematic tissue
present in the bud of the nodal segments of the species, Scoparia dulcis L. (Scrophulariaceae), thereby
obtaining plants genetically identical to the mother plant. They were identical to the plant mother.These techniques
help to reduce the space and time necessary for the cultivation this species. The protocol thus developed
will produce specimens of high performance in active principles and free of infectious agents, particularly
for the production of material required for medicinal products. Scoparia dulcis L. has been described with
anti-malarial proprieties. One of its chemical components is beta sitosterol, which is used to cure prostate
inflammation and constitutes a base element for the treatment of baldness. The research was developed in
several stages: first, the establishment of a protocol for bacterial and mushroom disinfection of explants. With
this purpose the times of explants exposition to sodium hypochlorite 2,25% and 3% were tested. The second
stage was to determine the ideal in vitro cultivation environment. The basic environment was Murashige and
Skoog, to which several growth hormones (IBA, ANA y 2,4-D) were added. The last stage was to test the adaptation
of the species to a rustic low-level control environment. Explant disinfection was conducted in sodium
hypochlorite 3% for 23 minutes. in vitro cultivation required a basic environment of Murashige and Skoog without
growth hormones.
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openAccess
CULTIVO IN VITRO
TOTIOPOTENCIALIDAD
MEDIOS DE CULTIVO
SEGMENTO NODAL
HORMONAS
SCOPARIA DULCIS.
Cultivo in vitro de Scoparia dulcis L. (Scrophulariaceae)
Article
oai:dspace.ups.edu.ec:123456789/87902015-04-16T22:27:37Zcom_123456789_5415com_123456789_5394com_123456789_5388col_123456789_5450
Contreras-Torres, Flavio F.
Basiuk, Elena V.
2015-04-16T22:27:37Z
2015-04-16T22:27:37Z
2009-06
http://dspace.ups.edu.ec/handle/123456789/8790
Nano-biotechnology is the most interesting accomplishment of present-day technology at the disposal of
human beings. By taking advantage of characteristics acquired by living organisms in the course of evolution
plus the unique properties of materials at nano-scale, this new technology anticipates the development of devices
with a complexity never imagined before. For instance, the biotechnology of nano-structures based on
peptides or even on viruses and bacteria, all of them combined in inorganic nano-structures, thereby giving
rise to new nano-bio-hybrid materials with ample application in the area of the sciences of life and that of
materials themselves. In broad terms, nano-biotechnology includes the study, design and creation of links between
structural biology and molecular nano-technology. Its development was made possible by a joint and
multidisciplinary effort in all scientific fields. This overview describes a fascinating universe at a scale of 1 ?
10–09 meter, the application of which should makes us think about where our future lives are heading.
Nevertheless, given the enormous amount of scientific papers published on the field, the present overview
focuses on the use of carbon nano-tubes for the development of nano-biodevices and draws on some hundred
scientific references
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openAccess
BIOTECNOLOGÍA
NANOMATERIALES
MATERIALES BIOHÍDRICOS
NANOTUBOS DE CARBONO
Nanobiotecnología: una descripción general
Article
oai:dspace.ups.edu.ec:123456789/87542015-04-16T19:52:17Zcom_123456789_5415com_123456789_5394com_123456789_5388col_123456789_5450
Maldonado, María Elena
Coba, Pablo
Cena, Marco
2015-04-16T19:52:17Z
2015-04-16T19:52:17Z
2009-06
http://dspace.ups.edu.ec/handle/123456789/8754
es
openAccess
PLANTAS MEDICINALES
HERBARIO
FITOQUÍMICA
Colección y aislamiento de especies vegetales de la provincia de Morona Santiag
Article