Table 1. Signal assignments and relative contents of compounds identified in the ¹H NMR spectra of different extracts.

	label	chemical shift	green cultures*	chlorotic cultures*	compound
AQUEOUS EXTRACT	a	1.2, 2.5, 4.15	5	2	β-hydroxy butyric acid
	b	3.25	2	0	glycinebetaine
	c	1.35	0.7	0.1	lactic acid
	d	1.9	2	3	acetic acid
	e	3.5–4.0, 5.4	12	0.2	sugars
METHANOLIC EXTRACT	d	2.9	1.3	5	acetic acid
	e	3.5–4.0	4	0.5	sugars
	h	8.55	0.1	1.6	formic acid
	i	5.96, 6.16, 8.03, 8.45, 9.35, 9.6	0.8	0	chlorophyll a
	j	5.3, 5.4	9	3	unsaturated fatty acids
	k	0.9, 1.3	16	17	saturated fatty acids
CHLOROFORMIC EXTRACT	k	0.9, 1.3	1.5	1.7	saturated fatty acids
	l	1.28, 2.55, 5.26	traces	0.2	poly-β-hydroxy butyric acid

* Intensities were measured relative to the internal standards, Trimethylsilyl Propionic-2,2,3,3,-d4 acid (TMSP) and Tetramethylsilane (TMS).