Physico-chemical properties of maize (Zea mays L.) mucilage differ with the collection system and corresponding root type and developmental stage of the plant

Abstract Purpose Mucilage plays crucial roles in root-soil interactions. Collection systems for maize ( Zea mays L.) use primary and seminal roots of aeroponically-grown seedlings (CS A ), or brace soil-grown plants B ). While each method represents specific plant developmental stages, root types growing (micro-)environments, these factors are rarely considered. It is unclear whether mucilage exhibits distinct physico-chemical properties related to collection system-inherent factors. Methods genotype B73 was collected from CS . Chemical composition assessed by pH, nutrient contents, neutral sugar composition, polysaccharide polymer length. Viscosity, surface tension contact angle represented physical properties. Results The share hexoses among total polysaccharides 11% higher than , whereas pentoses were predominant together with concentrations pH values. Mannose detected only which also exhibited tension, viscosity compared Conclusions Physico-chemical differences between the two mucilages type functions, environmental growth conditions, state. Higher fractions seem semi-sterile system conditions. might reflect need enhanced water holding capacity drier strong influence on even a single play additional e.g. attraction microbiomes. These aspects relevant when assessing role rhizosphere, developing models rhizosphere processes.