LAM2: An Unusual Laminaran Structure for a Novel Plant Elicitor Candidate.

Laminarans are of interest because they have been shown to induce various immune responses in animals and plants. These β-D-glucans differ from each other by their branching rate, which is possibly responsible for their biological activities. In the present study, we characterized a laminaran fraction extracted from and named LAM2 using sugar composition and structural analyses (NMR).

Biological and Chemical Characterization of Leachate.

There is a growing demand for molecules of natural origin for biocontrol and biostimulation, given the current trend away from synthetic chemical products. Leachates extracted from plantain stems were obtained after biodegradation of the plant material. To characterize the leachate, quantitative determinations of nitrogen, carbon, phosphorus, and cations (K, Ca, Mg, Na), Q2/4, Q2/6, and Q4/6 absorbance ratios, and metabolomic analysis were carried out.