Pollen grains in some turkish rhinantheae (scrophulariaceae)

Pollen Morphology of Some Turkish Crocus L. (iridaceae) Species

The genus Crocus L. (Iridaceae) comprises about 80 species distributed mainly in the Mediterranean region. It is widely dispersed in Turkey; at present about 67 taxa (including subspecies and varieties) are recognized there (Mathew, 1984, 1988, 1995, 2000; Kerndorff and Pasche, 2003, 2004). The Turkish Crocus species have received attention by several workers, who have concentrated mainly on mo...

Ultrastructural features of Mimulus aurantiacus (Scrophulariaceae) pollen tubes in vivo.

The aim of this study is to give information on ultrastructure of in vivo pollen tubes of Mimulus aurantiacus which were collected from the Botanical Garden of the University of California at Berkeley. Materials were prepared according to electron microscopy methods and examined under Zeiss electron microscope. Four zones were examined in the pollen tubes of Mimulus aurantiacus. Apical zone: Mi...

Germination Schedules of Pollen Grains: Implications for Pollen Selection.

Pollen Grains Contour Analysis on Verification Approach

Earth’s biodiversity has been suffering the effects of human contamination, and as a result there are many species of plants and animals that are dying. Automatic recognition of pollen species by means of computer vision helps to locate specific species and through this identification, study all the diseases and predators which affect this specie, so biologist can improve methods to preserve th...

Interaction Between Air Pollutants and Pollen Grains: The Role on the Rising Trend in Allergy

Asthma and allergic diseases cases have risen in recent decades. Plant pollen is considered as the main aeroallergen causing allergic reactions. According to available data, urban residents experience more respiratory allergies than rural residents mainly due to the interaction between chemical air pollutants and pollen grains. This interaction can occur through several mechanisms; chemical pol...