RT Journal Article
T1 Allelopathic potential of aqueous extract from Acacia melanoxylon R. Br. on Lactuca sativa
A1 Hussain, Muhammad Iftikhar
A1 El-Sheikh, Mohamed A.
A1 Reigosa Roger, Manuel Joaquin
K1 2414.90 Degradación de Residuos Vegetales
K1 2417 Biología Vegetal (Botánica)
K1 2302 Bioquímica
AB We studied the polyphenol (phenolic compounds and flavonoids) composition and allelopathic effects of Acacia melanoxylon R. Br. aerial foliage aqueous extract (0%, 25%, 50%, 75% and 100%) on the seedling growth and plant biomass of the general biotest species, lettuce (Lactuca sativa). Mean leaf fresh weight, leaf dry weight, root fresh weight and root dry weight were decreased following exposure to Acacia aerial foliage, flowers aqueous extract (AFE) and phyllodes aqueous extract (APE) after 6 days. The reduction in plant dry biomass was more than 50% following treatment with AFE. The decrease in mean root length was approximately 37.7% and 29.20% following treatment with Acacia flowers extract (AFE) at 75% and 100% concentration, respectively. Root dry weight of L. sativa was reduced by both flowers and phyllodes extract. The reduction of protein contents in lettuce leaves following Acacia foliage extract proved that both AFE and APE exhibit polyphenols that causes the toxicity which led to decrease in leaf protein contents. High-Performance Liquid Chromatography (HPLC) was employed to analyze the A. melanoxylon flowers and phyllodes. A total of 13 compounds (accounting for most abundant compounds in flowers and phyllodes) include different flavonoids and phenolic compounds. The phytochemical compounds detected were: Gallic acid, protocatechuic acid, p-hydroxybenzoic acid, p-hydroxybenzaldehyde, vanillic acid, syringic acid, p-coumaric acid, and ferulic acid. The major flavonoid compounds identified include rutin, luteolin, apigenin, and catechin. Allelopathic effects of flower and phyllodes extracts from A. melanoxylon may be due to the presence of above compounds identified by HPLC analysis.
PB Plants
SN 22237747
YR 2020
FD 2020-09-18
LK http://hdl.handle.net/11093/1792
UL http://hdl.handle.net/11093/1792
LA eng
NO Plants, 9(9): 1228 (2020)
NO Xunta de Galicia | Ref. 10PXIB310261PR
DS Investigo
RD 03-oct-2023