Sesbania rostrata and grow faster than seeded plants. "S. rostrata" is used as an intercrop with grasses such as rice ("Oryza sativa") and maize ("Zea mays"), as well as with legumes such as rice bean ("Vigna umbellata") and jointvetch ("Aeschynomene afraspera"). If intercropped with rice, it should be planted 30 days after the rice to prevent competition between the crops. "S. rostrata" grows in altitudes up to 1500–1600 m, and is able to endure waterlogged soils and flooding over 1 m deep. It tolerates bimodal and summer rainfall patterns, heavy to medium clay soils, neutral pH, free and impeded soil drainage. The
Helitron (biology) Helitron (biology) Helitrons are one of the three groups of eukaryotic class 2 transposable elements (TEs) so far described. They are the eukaryotic rolling-circle transposable elements which are hypothesized to transpose by a rolling circle replication mechanism via a single-stranded DNA intermediate. They were first discovered in plants ("Arabidopsis thaliana" and "Oryza sativa") and in the nematode "Caenorhabditis elegans", and now they have been identified in a diverse range of species, from protists to mammals. Helitrons make up a substantial fraction of many genomes where non-autonomous elements frequently outnumber the putative autonomous partner. Helitrons seem to have a major role