Marah

Abstract: :The geophytic, perennial vine Marah macrocarpus resprouts vigorously from an underground tuber after chaparral fires and produces numerous large (1,400 mg), non-dormant seeds. Studies of the postfire response of M. macrocarpus were conducted at two sites. At the main study site, the number of stems per plant was highest in the first 2 y after fire but declined rapidly in the third year. Seed yield peaked in the first year and was estimated to be about 8,469 seeds·ha-1. The largest plants produced seeds, but despite prolific resprouting and growth, only 22% of the population set seed. Most seeds fell within 1.3 m of the centre of the parent plant. Over a 3-y period, I tracked the fate of magnet-bearing seeds. Rodents, primarily Dipodomys agilis and Peromyscus spp., dispersed and cached seeds in the burn area 13.6 ± 9.5 m (mean ± SD) from parent plants. In the first year, four seedlings (2%) established from 200 marked seeds; all seedlings originated from multi-seed rodent caches. In the second yea...

Abstract: Two type 1 RIPs, designated as MOR-I and MOR-II, have been isolated from Marah oreganus (manroot) seed extract. They are similar but not identical to trichosanthin, a type 1 RIP in the same family. MOR-I and MOR-II are monomeric proteins with molecular weights of 27989.0 and 27632.8 respectively and have pI values greater than 8.8. MOR-I and MOR-II inhibit cell-free protein synthesis with IC50s of 0.063 and 0.071 nM, respectively, and are relatively stable with respect to temperature and pH variations. They share a conserved N-terminal amino acid sequence (D-SF-LS) and cross-react with goat anti-trichosanthin polyclonal serum.

Abstract: This paper discusses Marah Rusli’s Anak dan Kemenakan text with opposition concept by Julia Kristeva. Opposition is something unexchangeable and unconditional between two inharmonic, not-complementary, and unsettling groups. This paper was written to observe the opposition in Anak dan Kemenakan text. Data analysis methods used are suprasegmental and intertextuality analysis methods. It’s found that the oppositions in the text can be seen from the aspects of educational, marriage, social class, and mamak’s (uncle) and father’s role in Minangkabau’s matrilineal kinship system. All of those aspects are opposite in thought, attitude, and behavior between the old and the youth. It describes that the people of Minangkabau was starting to enter a renewal which was marked by the appearance of educational institution. Meanwhile,the renewal itself wasn’t completely accepted by the society. Therefore, the oppositions between the old and the youth became unavoidable.