To discover mechanisms that controlled the growth of the rooting system in the earliest land plants, we identified genes that control the development of rhizoids in the liverwort Marchantia polymorpha. 336,000 T-DNA transformed lines were screened for mutants with defects in rhizoid growth, and a de novo genome assembly was generated to identify the mutant genes. We report the identification of...

The genetic regulation of cell patterning within plant gametophytes remains poorly understood. Now, two new studies in the liverwort Marchantia polymorpha shed light on the conserved function of an RKD transcription factor as a key regulator of egg cell fate in the land plant lineage.

The liverwort Marchantia polymorpha has X and Y chromosomes in the respective female and male haploids. Here we report the successful exploitation of representational difference analyses to isolate DNA markers for the sex chromosomes. Two female-specific and six male-specific DNA fragments were genetically confirmed to originate from the X and Y chromosomes, respectively.

The genome of the liverwort Marchantia polymorpha is an important step toward development of a new plant model system (Bowman et al., 2017). Liverworts may be the sister taxon to all other land plants, and the genome shows features that illuminate the ancestor of all land plants and give insights into how plant systems function and evolved.

The presynaptic plasma membrane (PSPM) of cholinergic nerve terminals was purified from Torpedo electric organ using a large-scale procedure. Up to 500 g of frozen electric organ were fractioned in a single run, leading to the isolation of greater than 100 mg of PSPM proteins. The purity of the fraction is similar to that of the synaptosomal plasma membrane obtained after subfractionation of To...

Indonesia memiliki julakan megabiodiversiti country karena keanekaragaman hayati yang melimpah. Salah satu jenis flora memperkaya adalah lumut hati. Danau Ranupani kondisi abiotik mendukung pertumbuhan Penelitian ini bertujuan untuk mengidentifikasi hari di zona B daerah sempandan danau kabupaten Lumajang. Berdasarkan hasil identifikasi ditemukan 2 spesies hati yaitu Marchantia polymorpha dan R...

Bionomical research on the continental shelf of Oran‘s Gulf enabled us to study Annelida macrofauna. Sampling sites were selected according bathymetry, which was divided into eight transects. Collected samples with Aberdeen grab separated Polychaeta Annelids from other zoological groups. 1571 inventoried and determined by species, including ten orders (Amphinomida, Capitellida, Eunicida, Flabel...