Palynomorphological study of Dianthus petraeus waldst. et kit. (Caryophyllaceae)

Abstract

The pollen morphology of Dianthus petraeus (Caryophyllaceae), which is endemic to the Balkans, has been examined by both light and scanning electron microscopy in order to provide taxonomically valuable characters that might be used in the classification of the Caryophyllaceae, as well as to contribute to the pollen atlas of Serbian apiflora. The pollen grains of D. petraeus are radially symmetrical, apolar, spheroidal and medium-sized. The mean of the pollen diameter is 45.5?1.4 ?m. The sculpturing pattern of exine is microechinate-microperforate, and the tectum is covered with minute echini averaging 0.8?0.1 ?m in length, more or less evenly distributed between the perforations. The microechini average number per sample area of 5 ?m x 5 ?m is 3.2?0.6. In view of the number, position and type of the apertures, the grains are polypantoporate, with about 13 operculate pores, averaging 6.4?0.7 ?m in diameter. Each operculum is covered with 4-6 conical spinules, which are longer than those on the exine surface. The mean interporal distance is 13.3?1.3 ?m. The obtained palynological results provide information that contribute towards a better understanding of the taxonomic status of D. petraeus. [Projekat Ministartsva nauke Republike Srbije, br. 46009 i br. 173018, as well as by EU Commission Project AREA, No 316004]

Pollen morphology of Chinese Pseudostellaria (Caryophyllaceae) and its systematic significance

“…Many researchers believed that the pores number in Caryophyllaceae is a stable characteristic (Dang, ; Doğan & Ömer Erdem, ; Faegri & Iversen, ; Mačukanović‐Jocić et al, ; Mostafavi & Mehregan, ; Wan et al, ; Yıldız, ). In this study, we found that the pore number of Pseudostellaria is stable, being 12–16.…”

“…The pollen morphological characteristics provide an important basis for phylogenetic relationships and taxonomy of plants (Du, Zhao, & Liu, ; Gul et al, ; Liu, Zhao, Liu, Xi, & Zhang, ; Ullah et al, ; L. Wang, Gu, Zhao, & Liu, ). The pollen morphological features of Caryophyllaceae, for example, the pores number, microechini density, and surface ornamentation have been generally used in different classification levels, such as intergeneric, intrageneric, interspecific, and intraspecies levels (Aktaş, Altan, Ozdemir, Baran, & Garnatje, ; Ataşlar, Potoglu Erkara, & Tokur, ; Barkoudah, ; Chanda, ; Cui, Wang, Gu, & Liu, ; Erdtman, ; Iwarsson, ; Kızılpınar, Özüdoğru, Özmen, Erik, & Doğan, ; Mačukanović‐Jocić, Jarić, & Mladenović, ; McNeill & Basset, ; Nejad Falatoury, Assadi, & Ghahremaninejad, ; Nejad Falatoury, Ghahremaninejad, & Assadi, ; Parent & Richard, ; Perveen & Qaiser, ; Skvarla & Nowicke, ; Yıldız, ).…”

Using multiple microscopic techniques for the comparative systematic of Spergula fallax and Spergula arvensis (Caryophyllaceae)

“…Family Caryophyllaceae has subspheroidal pollen shape pantoporate, and species are differentiated by number of pores (Mačukanović‐Jocić, Jarić, & Mladenović, ; Ullah, Zafar, Ahmad, Dilbar, et al, ). This study also showed that the pollen morphology shape is subspheroidal, and pantoporate.…”