Strigolactones Interact With Nitric Oxide in Regulating Root System Architecture of Arabidopsis thaliana

Strigolactones interact with ethylene and auxin in regulating root-hair elongation in Arabidopsis.

Strigolactones (SLs) or derivatives thereof have been identified as phytohormones, and shown to act as long-distance shoot-branching inhibitors. In Arabidopsis roots, SLs have been suggested to have a positive effect on root-hair (RH) elongation, mediated via the MAX2 F-box. Two other phytohormones, auxin and ethylene, have been shown to have positive effects on RH elongation. Hence, in the pre...

Epistatic genetic architecture of root length in Arabidopsis thaliana Authors

Efforts to identify loci underlying complex traits generally assume that most genetic variance is additive. This is despite the fact that non-additive genetic effects, such as epistatic interactions and developmental noise, are also likely to make important contributions to the phenotypic variability. Analyses beyond additivity require additional care in the design and collection of data, and i...

RootScape: A landmark-based system for rapid screening of root architecture in Arabidopsis thaliana

Redox regulation of the NPR1-TGA1 system of Arabidopsis thaliana by nitric oxide.

The role of reactive oxygen and nitrogen species in local and systemic defense reactions is well documented. NPR1 and TGA1 are key redox-controlled regulators of systemic acquired resistance in plants. NPR1 monomers interact with the reduced form of TGA1, which targets the activation sequence-1 (as-1) element of the promoter region of defense proteins. Here, we report the effect of the physiolo...

Nitrate-responsive miR393/AFB3 regulatory module controls root system architecture in Arabidopsis thaliana.

One of the most striking examples of plant developmental plasticity to changing environmental conditions is the modulation of root system architecture (RSA) in response to nitrate supply. Despite the fundamental and applied significance of understanding this process, the molecular mechanisms behind nitrate-regulated changes in developmental programs are still largely unknown. Small RNAs (sRNAs)...