2015
Gudiño, W.; Márquez-Guzmán, J.; de la Barrera, E.
Structural implications for nectar secretion by floral nectaries of three columnar cacti Journal Article
In: Maejo International Journal of Science and Technology, vol. 9, no. 2, pp. 156-164, 2015.
Abstract | Links | BibTeX | Tags: flower, morphology, nectar, nectary, Polaskia, reproductive ecophysiology, Stenocereus
@article{Gudiño2015,
title = {Structural implications for nectar secretion by floral nectaries of three columnar cacti},
author = {W. Gudiño and J. Márquez-Guzmán and E. de la Barrera },
url = {http://agro.mx/wp-content/uploads/2015/06/30-MIJST.pdf
http://www.mijst.mju.ac.th/vol9/156-164.pdf
},
year = {2015},
date = {2015-06-06},
journal = {Maejo International Journal of Science and Technology},
volume = {9},
number = {2},
pages = {156-164},
abstract = {Floral nectaries are essential for plant reproduction. Their position and shape are
important because these factors determine the amount of nectar secreted and therefore the
pollinators that are attracted. The main objective of this study is to determine the position,
shape and macromorphology of floral nectaries for three columnar cacti, namely Polaskia
chende, P. chichipe and Stenocereus quevedonis. By means of light microscopy, scanning
electron microscopy and histochemical tests, the floral nectar-secreting structures were
investigated. Different secreting structures were found for the three species, with S.
quevedonis having the largest nectar secreting area consisting of stomates located at the base
of the stem filaments (1.9 mm2
). The nectar secretory pores of P. chichipe measured 0.93
mm2
, while the cuticular fissures of P. chende measured 0.8 mm2
. For the case of these three
species, the surface available for nectar secretion appears to determine the volume of nectar
secretion. The relationships between nectarial chamber size, total nectar volume secreted and
size of secreting structure found for the three species suggest that the surface area available is
the central influential variable that determines the volume of secreted nectar.},
keywords = {flower, morphology, nectar, nectary, Polaskia, reproductive ecophysiology, Stenocereus},
pubstate = {published},
tppubtype = {article}
}
Floral nectaries are essential for plant reproduction. Their position and shape are
important because these factors determine the amount of nectar secreted and therefore the
pollinators that are attracted. The main objective of this study is to determine the position,
shape and macromorphology of floral nectaries for three columnar cacti, namely Polaskia
chende, P. chichipe and Stenocereus quevedonis. By means of light microscopy, scanning
electron microscopy and histochemical tests, the floral nectar-secreting structures were
investigated. Different secreting structures were found for the three species, with S.
quevedonis having the largest nectar secreting area consisting of stomates located at the base
of the stem filaments (1.9 mm2
). The nectar secretory pores of P. chichipe measured 0.93
mm2
, while the cuticular fissures of P. chende measured 0.8 mm2
. For the case of these three
species, the surface available for nectar secretion appears to determine the volume of nectar
secretion. The relationships between nectarial chamber size, total nectar volume secreted and
size of secreting structure found for the three species suggest that the surface area available is
the central influential variable that determines the volume of secreted nectar.
important because these factors determine the amount of nectar secreted and therefore the
pollinators that are attracted. The main objective of this study is to determine the position,
shape and macromorphology of floral nectaries for three columnar cacti, namely Polaskia
chende, P. chichipe and Stenocereus quevedonis. By means of light microscopy, scanning
electron microscopy and histochemical tests, the floral nectar-secreting structures were
investigated. Different secreting structures were found for the three species, with S.
quevedonis having the largest nectar secreting area consisting of stomates located at the base
of the stem filaments (1.9 mm2
). The nectar secretory pores of P. chichipe measured 0.93
mm2
, while the cuticular fissures of P. chende measured 0.8 mm2
. For the case of these three
species, the surface available for nectar secretion appears to determine the volume of nectar
secretion. The relationships between nectarial chamber size, total nectar volume secreted and
size of secreting structure found for the three species suggest that the surface area available is
the central influential variable that determines the volume of secreted nectar.
2011
Gudiño, W.; Casas, A.; Valiente-Banuet, A.; Orozco-Martínez, R.; de la Barrera, E.
In: Journal of the Professional Association for Cactus Development, vol. 13, pp. 88-101, 2011.
Links | BibTeX | Tags: anthesis, cactus, climate, climate change, drought, energy balance, light, microenvironment, nectar flower, photosynthesis, Polaskia, Tehuacán, temperature
@article{Gudiño2011,
title = {Climate and microenvironmental parameters affecting anthesis and nectar secretion for Polaskia chende and P. chichipe, endemic columnar cacti from the Tehuacán Valley, Puebla},
author = {W. Gudiño and A. Casas and A. Valiente-Banuet and R. Orozco-Martínez and E. de la Barrera},
url = {http://www.jpacd.org/?modulo=JS&ID=14},
year = {2011},
date = {2011-02-02},
journal = {Journal of the Professional Association for Cactus Development},
volume = {13},
pages = {88-101},
keywords = {anthesis, cactus, climate, climate change, drought, energy balance, light, microenvironment, nectar flower, photosynthesis, Polaskia, Tehuacán, temperature},
pubstate = {published},
tppubtype = {article}
}