Table 1.

Various complex exudates released via the plant root and their single constituent.

Complex Exudates	Compound Constituents
Organic compounds	Succinic acid, l-aspartic acid, Acetic acid, l-glutamic acid, salicylic acid, malic acid, isocitric acid, chorismic acid, shikimic acid, sinapic acid, shikimic acid, p-hydroxybenzoic acid, gallic acid, caffeic acid, protocatacheuic acid, p-coumaric acid, tartaric acid, ferulic acid, oxalic acid, citric acid, piscidic acid, mugineic acid
Complex carbohydrate	Glucose, arabinose, galactose, sucrose, fructose, pentose, raffinose, rhamnose, ribose, xylose and mannitol
Amino acids	Complete 20 protein genic amino acids, l-hydroxyproline, mugineic acid, amino butyric acid, homoserine
Coumarins	Umbelliferone
Flavonols	Kaempferol, quercitin, naringenin, naringin, rutin, myricetin, strigolactone, genistein and their derivative sugars
Lignins	Benzoic acid, nicotinic acid, catechol, cinnamic acid, gallic acid, phloroglucinol, syringic acid, sinapoyl aldehyde, ferulic acid, coumaric acid, vanillin, chlorogenic acid, quinic acid, pyroglutamic acid, sinapyl alcohol
Anthocyanins	Delphinidin, pelargonidin, cyanidin and their derivatives sugar molecules
Aurones	Sinapoyl choline, benzyl aurones synapates
Glucosinolates	Desuphoguconapin, desulphoprogoitrin, cyclobrassinone, desulphoglucoalyssin, desulphonapoleiferin
Sterols	Sitosterol, stigmasterol, campestrol
Anthocyanins	Delphinidin, pelargonidin, cyanidin and their derivative sugar molecules
Fatty acids	Oleic acid, linoleic acid, stearic acid, palmitic acid
Indole compounds	Brassitin, sinalexin, indole-3-acetic acid, methyl indole carboxylate, camalexin glucoside, brassilexin
Proteins and enzymes	Lectins, proteases, PR proteins, peroxidases, phosphatases, lipase, hydrolases
Allomones	Sorgoleone, 5,7,4′-trihydroxy-3′, jugulone, DIMBOA, 5′-dimethoxyflavone, DIBOA