Developmental changes in the aperture during pollen grain ontogeny in Olea europaea L.
نویسندگان
چکیده
منابع مشابه
Identification and localization of a caleosin in olive (Olea europaea L.) pollen during in vitro germination
In plant organs and tissues, the neutral storage lipids are confined to discrete spherical organelles called oil bodies. Oil bodies from plant seeds contain 0.6-3% proteins, including oleosins, steroleosins, and caleosins. In this study, a caleosin isoform of approximately 30 kDa was identified in the olive pollen grain. The protein was mainly located at the boundaries of the oil bodies in the ...
متن کاملthe effect of e-64 on the developmental competence of sheep cocs during in vitro maturation
in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.
Fruit Morphological Changes during Pit Hardening in Autochthonous Istrian Olive (Olea europaea L.) Cultivars
Endocarp lignifi cation is important fruit growth phenophase since aft er its completion fruit starts with oil accumulation. Th e information about duration of endocarp lignifi cation is important for timing of management practices, irrigation and pest control in oil cultivars, and fruit thinning in table cultivars to obtain uniform fruit weight and size. In this study, fruit length, width and ...
متن کاملThe ultrastructure and ontogeny of pollen in Helleborus foetidus L. IV. Pollen grain maturation.
The final stages of Helleborus pollen-grain ontogeny, which culminate in maturation and germination of the grain, have been investigated at the ultrastructural level. Following the deposition of primary and secondary exine, and during the early stages of intine formation, the microspore passes through a vacuolate phase, in which the cytoplasm appears devoid of most organelles other than the pro...
متن کاملAirborne-pollen map for Olea europaea L. in eastern Andalusia (Spain) using GIS: Estimation models
Estimations based upon geostatistics and mapping have enabled the construction of a spatial model to predict the presence of biological particles in a particular region. This methodological proposal has been tested in a case study, at a regional scale, of airborne Olea pollen, using the data acquired from various sampling stations that are designed for the aerobiological monitoring of pollen le...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Phytologist
سال: 1989
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1989.tb02367.x