embryo sac

A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization.

Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants.

But in angiosperms into the embryo sac in the two eggs and sperm, respectively, and a nuclear fusion.

Simultaneously, the mutant had malformation embryo sac and two ovules inthe same ovary, which implied that D functional genes were included.

Malformation embryo sac, twin-ovule and twin-embryo sac in an ovary were seen with paraffin slic.

In third stage, at maturing of the embryo sac, pollen tubes grow directionally toward micropyle into embryo sac.

The result indicated that the corn is an anatropous ovule, thick nucellus embryo sac.

It is concluded that embryo sac sterility was the main reason for highly stable seedless characteristic of Lipeng No. 2 cultivar.

Chalazal end of mature embryo sac is narrow and elongated.

The mature embryo sac contains an egg apparatus, a central cell and three antipodal cells.

Observation by paraffin section showed that Lipeng No. 2 embryo sac mother cells were almost entirely degenerated during megasporogenesis .

In second stage, after 2-nucleate embryo sac development, most pollen tubes grow radially around ovules.

In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure.

Wall ingrowths occurred in central cell at micropylar region near embryo sac wall.

Genesis of megaspore and development of embryo sac in Carica papaya L .

While in the Angiophyta the female gametophyte is simply the EMBRYO SAC .

Embryo-sac haustorium is present.

Female gametophyte was polygonal embryo sac with 8 nucleis.

The development of the embryo sac is Polygonum type with numberous antipodal cells.

Most mature embryo sac are 5-nucleated embryo sac which the 5 nuclei belong to 4 cells.

The percentage of abnormal embryo sac in japonica, being 25. 66% in average, was higher than that in indica, 19. 34% in average.

Improved Method of PEG Embedding Section Being Used in Investigating Microtubules in Plant Embryo Sac

Further Observation on the Formation and Development of Autotetraploid Rice Embryo Sac Using Laser Scanning Confocal Microscopy

Observation on formation and development of autotetraploid rice embryo sac using Laser Scanning Confocal Microscope

A New Type of Embryo Sac in Cardiopteris and Its Systematic Implication

Researches in Cytology and Molecular Biology of Plant Embryo Sac Development

Structure and Fertilization of Embryo Sac in Intersubspecific Hybrids of Autotetraploid Rice

The central cell located at the embryo sac central committee, 2 polar nuclei approaches the micropyle end the egg cell;

Observation on Particular Embryo Sac of Rice Using Confocal Microscopy

Structure of Mature Embryo Sac and Its Abnormal Phenomena in Autotetraploid Rice

Histochemical Observations on the Embryo Sac of Vigna angularis

During early embryo sac development

Procedures for Observation of Embryo Sac Structure of Angiosperms

Development Process of Ovule and Embryo Sac in Ornithogalum caudatum Ait

central nucleus of embryo sac

Structure of mature embryo sac