A novel method for growing <i>Arabidopsis thaliana</i> plants hydroponically

TLDR

The authors develop a simple hydroponic system for Arabidopsis that is easy to maintain and scalable to grow many plants in a single container. The method uses a Life Raft Float Unit with a sponge inside a Magenta GA7 vessel containing nutrient solution, enabling hydroponic growth of individual or many plants. The system supports vigorous growth without aeration, with optimal light, nutrient strength, and temperature, producing plants that flower and appear like those grown in potting media, offering a low‑maintenance alternative to existing hydroponic methods.

Abstract

In this report we describe the development of a simple system for growing individual Arabidopsis plants hydroponically under environmental conditions which are simple to maintain while maximizing growth and development. The system consists of a Life Raft Float Unit with a 14–20 mm sponge inserted into its center; this unit is placed into a Magenta GA7 vessel containing Arabidopsis nutrient solution. Plants grown in this experimental system do not require aeration, 125 μmol m −2 s −1 supports vigorous plant growth, 1/4 to 1/8 strength Arabidopsis nutrient solution promotes maximal growth while higher or lower levels have adverse effects and temperatures between 18 and 24°C were found to be optimal. Plants grown under these conditions exhibit physiological factors such as time to flowering and overall appearance similar to those grown in potting media. The low maintenance method described in this paper provides an alternative to existing hydroponic methods used to grow Arabidopsis . Adaptation of this system for growing large numbers of plants in 1 container is also discussed.