Embryological study of Gentiana cruciata L. (Gentianaceae) from Bulgaria

Elina YANKOVA; Petka YURUKOVA

Makale detayları

Embryological study of Gentiana cruciata L. (Gentianaceae) from Bulgaria

Yazarlar:

Elina YANKOVA | Petka YURUKOVA

Yayıncı:

Nobel Bilim ve Araştırma Merkezi Limited

Dergi:

Journal of Applied Biological Sciences 2010 Vol.4 Issue 2, pp.19-23

Belge Tipi:

Makale

Yayın Tarihi:

6/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000831612

Sıklık:

Üç Yıllık

eISSN:

2146-0108

Özet:

 

Embryological study on the Bulgarian native populations of Gentiana cruciata L. has been carried out. The anther is tetrasporangiate. Its wall develops according to Dicotyledonous-type and consists of epidermis, fibrous endothecium, two middle layers and glandular tapetum. The simultaneous microsporogenesis leads to formation of predominantly tetrahedral microspore tetrads. The mature pollen grains are 2-celled. The ovule is anatropous, tenuinucellate and unitegmic with unicellular archesporium. The development of the embryo sac follows the Polygonumtype and rarely - the Allium-type. The legitimate embryo and endosperm develop after double fertilization. The embryogenesis runs according to Asterad-type. Initially, the endosperm is nuclear. In some ovules somatic apospory was established.

Makale detayları

Embryological study of Gentiana cruciata L. (Gentianaceae) from Bulgaria

Yazarlar: Elina YANKOVA | Petka YURUKOVA

Yayıncı: Nobel Bilim ve Araştırma Merkezi Limited

Dergi: Journal of Applied Biological Sciences 2010 Vol.4 Issue 2, pp.19-23

Belge Tipi: Makale

Yayın Tarihi: 6/2010

Belge Dili: Türkçe

Document ID (Org No.): 2000831612

Sıklık: Üç Yıllık

eISSN: 2146-0108

Sayı

Yazarlar:

Elina YANKOVA | Petka YURUKOVA

Yayıncı:

Nobel Bilim ve Araştırma Merkezi Limited

Dergi:

Journal of Applied Biological Sciences 2010 Vol.4 Issue 2, pp.19-23

Belge Tipi:

Makale

Yayın Tarihi:

6/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000831612

Sıklık:

Üç Yıllık

eISSN:

2146-0108