Promotive effect of 5-aminolevulinic acid on chlorophyll,antioxidative enzymes and photosynthesis of Pakchoi (<Emphasis Type="Italic">Brassica campestris</Emphasis> ssp<Emphasis Type="Italic">.</Emphasis><Emphasis Type="Italic">chinensis</Emphasis> var. communis Tsen et Lee) |
| |
Authors: | Saba Ambreen Memon Xilin Hou Liangju Wang Ying Li |
| |
Institution: | (1) State Key Lab of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Weigang, 210095 Nanjing, China;(2) College of Horticulture, Nanjing Agricultural University, Weigang, 210095 Nanjing, China |
| |
Abstract: | The objective of this article is to study the effect of 5-aminolevulinic acid (ALA) and enhanced chlorophyll content, antioxidative
enzymes and photosynthesis rate by foliar application of ALA. We evaluated three concentrations (control-distilled water,
T1-50 mg l−1, T2-150 mg l−1, T3-250 mg l−1) of ALA and seven cultivars, “Sanchidaye” (Sa-1), “Lichuandasuomian” (Li-1), “Aijiaohuang” (Ai-1), “Qingyou” No. 4 (Qi-1),
“Aikang” No. 5 (Ak-1), “Hanxiao” (Ha-1) and “Shulv” (Sl-1). “Ak-1” showed strongest response of POD (peroxidase) enzyme activity
(0.4 U g−1 min−1) in 250 mg l−1 ALA solution. The highest CAT (catalase) activity (0.8 U g−1 min−1) after administration of 250 mg l−1 ALA was observed in “Li-1”. Meanwhile, highest (1.42 mg l−1) total chlorophyll content was also observed in “Ak-1”, when leaves were treated in 50 mg l−1 ALA, “Li-1” and “Ai-1” showed strongest response of specific activity of superoxide dismutase (SOD) in 50 mg l−1 and 50 mg l−1 ALA. Two hundred and fifty milligram per milliliter of ALA-treatment significantly improved the net photosynthetic rate. |
| |
Keywords: | Pakchoi Promotion 5-Aminolevulinic acid Chlorophyll Antioxidative enzymes Photosynthesis |
本文献已被 SpringerLink 等数据库收录! |
|