The Mg-chelatase H subunit is an abscisic acid receptor

Article Abstract:

Study is conducted to show that Arabidopsis abscisic acid-binding protein/H subunit of Mg-chelatase(ABAR/CHLH) specifically binds ABA and mediates ABA signalling as a positive regulator in seed germination, post-germination growth and stomatal movement, showing that ABAR/CHLH is an ABA receptor. ABAR/CHLH is shown to be a ubiquitous protein expressed in both green and non-green tissues, which indicates that it might be able to perceive the ABA signal at the whole-plant level.

China, Germination, Biosynthesis

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Transcription factor control of asymmetric cell divisions that establish the stomatal lineage

Article Abstract:

The identification of a gene, SPEECHLESS (SPCH), is reported by encoding a basic helix-loop-helix (bHLH) transcription factor, which is required for the asymmetric divisions that establish the stomatal lineage in Arabidopsis thaliana. The SPCH and two paralogues are required for the initiation, proliferation and terminal differentiation of cells in the stomatal lineage and these molecules and regulatory mechanisms are used during muscle and neural development.

United States, Gene mutations, Gene mutation, Cell division, Stomata

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Abscisic acid controls calcium-dependent egress and development in Toxoplasma gondii

Article Abstract:

The calcium-dependent egress and development in the parasite, Toxoplasma gondii, which are usually found to be controlled by the production of Abscisic acid (ABA) is discussed.

Physiological aspects, Toxoplasma, Chemical properties

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