The gemma cups are cup-like structures containing gemmae. The gemmae are small discs of haploid tissue, and they directly give rise to new gametophytes. They are dispersed from …

2020年5月11日 · Gemma cup and gemma development are complex processes that include anisotropic cell growth, asymmetric cell division and differentiation, and formation of new …

2024年7月24日 · In Marchantia, gemma is a cup-shaped structure with fringed margins that is why it is known as gemma cup and it contains many buds. Each gemma stands on a short …

Although gemmae and gemma cups are gametophytic organs unique to some Marchantiopsida species with no homologous counterparts in angiosperms, recent molecular studies have …

2022年8月19日 · Starting with meiosis (left, center): Meiosis produces haploid spores which will grow by mitosis into either male or female gametophytes. Either of these gametophytes can …

Gemmae are produced in the gemma cups which are found on the dorsal surface of the thallus (Fig. 3 A). Gemma cups are crescent shaped, 3 m.m. in diameter with smooth, spiny or …

Gemmae cups are cup-like structures containing gemmae. The gemmae are small discs of haploid tissue and they directly give rise to new gametophytes. A gemma (plural gemmae) is a …

Learn about this topic in these articles: …in special organs known as gemma cups and are dispersed by rainfall. Fragmentation of the thallus can also result in new plants. Single-celled …

2024年8月4日 · Gemma Cups: Small, cup-shaped structures called gemma cups are present on the upper surface. These structures are pivotal for vegetative reproduction, as they contain …

A gemma cup is about 2 mm in diameter and 3 mm in height, the margins of which are hyaline, lobed, spinuous or entire. Many small stalked gemmae develop on the floor of the gemma cup …