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Altmetric Adamatzky, A. (2017) On plant roots logical gates. BioSystems, 156. pp. 4045. ISSN 03032647 Available from: http://eprints.uwe.ac.uk/31670 Full text not available from this repository Publisher's URL: http://doi.org/10.1016/j.biosystems.2017.04.002 Abstract/DescriptionTheoretical constructs of logical gates implemented with plant roots are morphological computing asynchronous devices. Values of Boolean variables are represented by plant roots. A presence of a plant root at a given site symbolises the logical {\sc True}, an absence the logical {\sc False}. Logical functions are calculated via interaction between roots. Two types of twoinputstwooutputs gates are proposed: a gate $\langle x, y \rangle \rightarrow \langle xy, x+y \rangle$ where root apexes are guided by gravity and a gate $\langle x, y \rangle \rightarrow \langle \overline{x}y, x \rangle$ where root apexes are guided by humidity. We propose a design of binary halfadder based on the gates.
