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Botanical illustration. Arabidopsis thaliana is an annual (rarely biennial) plant, usually growing to 20–25 cm tall. [6] The leaves form a rosette at the base of the plant, with a few leaves also on the flowering stem.
Arabidopsis (rockcress) is a genus in the family Brassicaceae.They are small flowering plants related to cabbage and mustard.This genus is of great interest since it contains thale cress (Arabidopsis thaliana), one of the model organisms used for studying plant biology and the first plant to have its entire genome sequenced.
The Nottingham Arabidopsis Stock Centre (NASC) provides seed and information resources to the International Arabidopsis Genome Project and the wider research community. It is based in the School of Biosciences at the University of Nottingham 's Sutton Bonington Campus , in the English county of Nottinghamshire .
The protein PIN8 significantly influences the development of lateral roots in a plant. [7] When a nonfunctional mutant of the protein, pin8, was inserted into a plasmid, the lateral roots of Arabidopsis thaliana had a decrease in root density. [7] It was shown that this mutant had no lingering effects on the development of the primary root.
In order to escape shade, plants adjust their root architecture, most notably by decreasing the length and amount of lateral roots emerging from the primary root. Experimentation of mutant variants of Arabidopsis thaliana found that plants sense the Red to Far Red light ratio that enters the plant through photoreceptors known as phytochromes. [27]
The root sprout is a form of dispersal vector that allows plants to spread to habitats that favor their survival and growth. Some species, such as poplars and blackthorn, produce root sprouts that can spread rapidly, and they can form thick mats of roots that can reclaim areas that have been cleared of vegetation by logging, erosion, pasturing.
Arabidopsis lyrata are diploid plants that have a life span of two or more years, small white flowers and highly distinct basal leaves with a height of 10–40 centimetres (4–16 in). [1] The stem leaves are arranged alternately, with linear and slightly curved margins that are smooth and having a base that is tapered. [ 1 ]
An excellent model system for the study of the parasitic behaviour of plant-parasitic nematodes has been developed using Arabidopsis thaliana as a model host. [12] The Arabidopsis roots are initially small and transparent, enabling every detail to be seen. Invasion and migration in the root was studied using M. incognita. [13]