Leaf Extract of Neem () Alleviates Adverse Effects of Drought in Quinoa ( Willd.) Plants Through Alterations in Biochemical Attributes and Antioxidants

Overview

Journal Saudi J Biol Sci

Specialty Biology

Date 2022 Mar 14

PMID 35280556

Authors

Hira Naz

Nudrat Aisha Akram

Muhammad Ashraf

Daniel Ingo Hefft

Basit Latief Jan

Affiliations

Soon will be listed here.

Abstract

The influence of varying concentrations (0, 1, 3, 4, 5, 6, 8, and 10 % v/v) of neem () leaf extract on drought stressed (40 % field capacity) quinoa ( Willd.) plants was assessed. During the current study two cultivars of quinoa (V7 and V9) were used. This study revealed that water stress adversely affects the fresh and dry weight of shoots and roots as well as chlorophyll pigments ( and ) of both quinoa cultivars. In contrast, drought stress enhanced glycinebetaine (GB), free proline, phenolic content, hydrogen peroxide (HO), activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) enzymes, and relative membrane permeability (RMP). However, application of neem leaf extract improved the accumulation of key osmoprotectants like proline, GB and activities of enzymatic antioxidants. Our findings showed 5 % neem leaf extract is an effective treatment in counteracting the oxidative damage caused by water stress, thereby improving overall plant growth. Of both cultivars of quinoa, the response of cv. V9 to stress as well as foliar applied neem was relatively more promising.

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