Scientists find microRNAs regulate plant development

... noticed that the ago1 mutant failed to form adventitious roots - a type of root that develops from aerial ... Auxin is known to be a major regulator of adventitious root formation and normal Arabidopsis plants form multiple adventitious roots on the hypocotyl (stem just above the root) ...

Adventitious in Biological Technology

The worldwide growth of ag biotech

... crops. The big issues for further growth of biotech crops revolve around the following concepts: Geneflow Bioconfinement Commingling adventitious presence Contamination All of the above has to do with the tendency that organisms have to spread, wander, mate and pop-up in unexpected ....

Adventitious in Biological Dictionary

Adventitious roots

... aerating . Furthermore, a stem ... adventitious , in botany, refers to structures that develop in ... acquired after birth. This article discusses adventitious roots , buds and shoots, which are very common in vascular plants. adventitious adj. Not inherent but added extrinsically. See ...

Primary root

... <2 mm diameter that have the function of water ... Primary Root Structure and Development - lecture notes. Coutts, M.P. 1987. ... adventitious Root System: The primary root usually dies at an early stage and is ... Only primary xylem is present in young roots , which ...

Gravitropism

... are discussed in the following places at Britannica. Assorted References angiosperms ( in angiosperm (plant): Root systems; ... system and an adventitious root system. The most common type, the primary system, consists of a taproot (primary root) that grows vertically downward (positive geotropism). ...

Apomixis

... read the ... Definition and other additional information on Apomixis from Biology-Online.org dictionary. ... gametophytic apomixis . adventitious embryony ... ...