Abstract:
:This was the first comprehensive pollen micromorphological investigation of lactiferous flora (Apocynaceae) of District Rawalpindi, Pakistan. The pollen morphology of 10 species of the family Apocynaceae was observed and documented using light microscopy and scanning electron microscopy. Pollen was found subspheroidal in shape in most of the species, however peroblate shape was noted in Vinca major. Exine sculpturing patterns (psilate, rugulate, scabrate, and microreticulate) were observed. The result indicated that exine ornamentation of Apocynaceae taxa is systematically informative at generic and species levels. Most of the species have tricolporate type pollen but tetraporate pollen was also observed in Trachelospermum jasminoides and tetracolpate in V. major. Minimum equatorial diameter was noted in Carissa edulis (27.13 μm) and maximum in V. major (108.25 μm). Similarly, maximum exine thickness was found in Cascabela thevetia (9.5 μm). In the present findings, the pollen morphological data are compared with available other pollen studies to evaluate the taxonomic value of pollen traits in Apocynaceae taxa by using multiple microscopic techniques. Furthermore, molecular and phylogenetic studies were recommended to strengthen the systematics of Apocynaceae taxa.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Naz S,Zafar M,Ahmad M,Memon RA,Sultana S,Bahadur S,Ozdemir FA,Siddiq Z,Shah MAdoi
10.1002/jemt.23293subject
Has Abstractpub_date
2019-09-01 00:00:00pages
1410-1418issue
9eissn
1059-910Xissn
1097-0029journal_volume
82pub_type
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