SPORE MORPHOLOGY OF SOME WEISSIA SPECIES (POTTIACEAE) FROM TURKEY

Abstract

In this study, spore morphology of Weissia controversa Hedw., W. condensa (Voit) Lindb. and W. brachycarpa (Nees & Hornsch.) Jur. were examined by the light microscopy (LM) and the scanning electron microscopy (SEM). All spores are small, the length of the polar axis (P) is between 13.39 µm and 15.0 µm, equatorial diameter (E) is between 17.56 µm and 18.38 µm. The smallest spores observed in W. condensa and the biggest spores in W. controversa. The shapes of all spores were determined as suboblate. Ornamentations are differing on leptoma and on distal pole. Baculate, baculate-clavate, pilate-baculate and ecinate ornamentation types were observed on the distal pole. The ornamentations are diluted on the leptoma. In addition to spore morphology, capsule structures were examined and photographed with SEM. As a result, the spore size, shapes, ornamentation types and the capsule structures show some differences among these species and these differences can be used as a distinctive character in the identification of the species

Keywords

• Pottiaceae,Weissia,spores morphology,capsule structure,SEM

References

1. [1] R. Zander, Genera of the Pottiaceae: Mosses of harsh environments. Bulletin of the Buffalo Society of Natural Sciences, 32, (1993) 1-378.
2. [2] Y. Tsubota and H. Inoue, A taxonomic revision of cleistocarpous species of Weissia (Pottiaceae, Bryophyta) in Japan. Phytotaxa, 306, (2017) 1-20.
3. [3] B. Lemmon, Cytological Investigations in the genus Weissia in Southeastern United States. Ph.D Thesis, Louisiana State University, (1968).
4. [4] G. Uyar and B. Cetin, A new check-list of the moses of the Turkey. Journal of Bryology, 26, (2004) 203-220.
5. [5] A. Erdag and H. Kurscher, Türkiye bitkileri listesi (Karayosunları). Ali Nihat Gokyigit Vakfı, Flora Araştırmaları Dernegi, (2017), İstanbul.
6. [6] R. Khoshravesh and S. Kazempour Osaloo, Spore morphology of certain mosses of northern Tehran-Iran: taxonomical and ecological implications. Iran Journal Botany, 13(2), (2007) 150-159.
7. [7] I. Potoglu Erkara and F. Savaroglu, Spore morphology of some Brachytheciaceae Schimp. species (Bryophyta) from Turkey. Nordic Journal of Botany, 25, (2007) 194-198.
8. [8] F. Savaroglu, I. Potoglu Erkara, C. Baycu and M. Alkan, Spore morphology of some Bryaceae Schwägr. species (Bryophyta) from Turkey. International Journal of Natural and Engineering Sciences, 1(2), (2007) 49-54.

9. [9] F. Savaroglu and I. Potoglu Erkara, Observations of spore morphology of some Pottiaceae Schimp. species (Bryophyta) in Turkey. Plant Systematics and Evolution, 271, (2008) 93-99.
10. [10] N. Medina, B. Estebanez, F. Lara and V. Mazimpaka, On the presence of dimorphic spores in Orthotrichum affine (Bryopsida, Orthotrichaceae). Journal of Bryology, 31, (2009) 127-129.
11. [11]. B. Ascı, T. Ceter , N. Pınar, H. Çolgeçen and B. Cetin, Spore morphology of some Turkish Tortula and Syntrichia species (Pottiaceae Schimp., Bryophyta). The Herb Journal of Systematic Botany, 1(2), (2010) 165-180.
12. [12] I. Caldeira, A. Luizi-Ponzo and V. Esteves, Palynology of selected species of Fissidens (Hedw.). Plant Systematics and Evolution, 299, (2013) 187-195.
13. [13] F. Savaroglu, Spore morphology of some Orthotrichaceae Arn. species (Bryophyta) from Turkey. Bangladesh Journal of Botany, 44(4), (2015) 499- 506.
14. [14] T. Ceter and K. Canlı, Türkiye’de yayılış gösteren bazı Grimmia (Grimmiaceae, Bryophyta) türlerin spor morfolojisinin incelenmesi. III. Aerobiyoloji, Palinoloji ve Alerjik Hastalıklarda Son Yenilikler Sempozyumu (APAS 2016), 5-7 Kasım 2016, Kastamonu / Türkiye, (2016).
15. [15] R. Wodehouse, Pollen grains. Mc. Grew Hill, (1935) New York.
16. [16] A. Van der Pluym and M. Hideux, Application d’une mèthodologie quantitative á la palynologie d’Eryngium maritimum (Umbelliferae). Plant Systematics and Evolution, 127, (1977) 55-85.
17. [17] G. Erdtman, Pollen and spore morphology/plant taxonomy; Gymnospermae, Pteridophyta, Bryophyta. Almquist and Wiksell, (1957), Stockholm.
18. [18] A. Boros and M. Járai-Komlódi, An Atlas of recent European Bryophyte spore. Akademiai Kiado, (1993) Budapest.
19. [19] S. Blackmore and S. Barnes, Pollen and Spores. Patterns of Diversification. The Systematics Association. Special Vol. No. 44. Clarendon Press, (1991), Oxford.
20. [20] W. Punt, S. Blackmore, S. Nilsson and A. Le Thomas, Glossary of pollen and spore terminology, contributions series No:1. LPP foundation, (1994), Netherlands.
21. [21] R. Kapp, O. Davis and J. King, Pollen and spores, the American association of stratigraphic palynologists foundation. Texas A&M University, (2000), USA.
22. [22] A. Boros, M. Járai-Komlódi, Z. Toth and S. Nilson, An atlas of recent European bryophyte spores. Akademiai Kiado, (1993), Budapest.
23. [23] H. Kurschner, Life strategies and adaptations in Bryophytes from the Near and Middle East. Turkish Journal of Botany, 28, (2004) 73-84.