Volume 13, Issue 63 (vol. 13, no. 63 2024)
2024, 13(63): 407-432 |
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Karimi Sernawi M, Rezaei Nejad A, Mousavi-Fard S, Mirzai Najafgholi H, Beiranvand F. Effect of growth promoting bacteria Pseudomonas putida and Curtobacterium sp. strain WLU on the growth and essential oil of Peppermint plants
(Mentha piperita L.) under water deficit stress conditions. Plant Process and Function 2024; 13 (63) : 24
URL: http://jispp.iut.ac.ir/article-1-2014-en.html
URL: http://jispp.iut.ac.ir/article-1-2014-en.html
Maryam Karimi Sernawi1 
, Abdolhossein Rezaei Nejad * 2, Sadegh Mousavi-Fard3 , Hossein Mirzai Najafgholi4 , Farhad Beiranvand1
, Abdolhossein Rezaei Nejad * 2, Sadegh Mousavi-Fard3 , Hossein Mirzai Najafgholi4 , Farhad Beiranvand1
1- Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
2- Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Khorramabad, Iran ,rezaeinejad.h@lu.ac.ir
3- Department of Horticultural Sciences, Faculty of Agriculture, Shahrekord University, Chaharmahal Bakhtiari, Iran
4- Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
2- Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Khorramabad, Iran ,
3- Department of Horticultural Sciences, Faculty of Agriculture, Shahrekord University, Chaharmahal Bakhtiari, Iran
4- Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
Abstract: (52 Views)
In order to evaluate the reaction of the peppermint plant (Mentha piperita L.) to water deficit stress and the use of growth-promoting bacteria, a factorial experiment was conducted in the form of a completely randomized design with four replications in the research greenhouses of the Faculty of Agriculture of Lorestan University in 2022. The first factor included water deficit stress (80, 50, and 20% available water content (AWC)), and the second factor included growth-promoting bacteria (without the use of bacteria (control), Pseudomonas putida strain, and Curtobacterium sp. strain wlu). The results of the present experiment show the water deficit stress had a significant effect on the morphophysiological and biochemical indicators, so that at the level of 20% AWC, it increased electrolyte leakage (219%), malondialdehyde concentration (50%) and the activity of antioxidant enzymes such as catalase (1174%), peroxidase (308%) and ascorbate peroxidase (82.7%) compared to the control treatment, but growth components such as plant height, stem number, total fresh and dry weight (29.3%, 37.2%, 56.1% and 55.5%, respectively), relative leaf water content (36.1%), essential oil percentage and yield (38.8% and 71.6%, respectively) decreased compared to the control treatment. Photosynthesis rate, intracellular carbon dioxide concentration, stomatal conductance, and mesophyllic conductance also decreased by 76.5%, 61.8%, 40%, and 38.5%, respectively, under water deficit stress conditions of 20% AWC. The application of growth-promoting bacteria in stress and non-stress conditions improved the growth components by increasing water absorption through root growth, increasing the activity of antioxidant enzymes, and increasing the rate of photosynthesis and stomatal conductance. Also, the percentage of essential oil and the yield of essential oil increased under the influence of the use of growth-promoting bacteria. In general, the results showed that the treatment of growth-promoting bacteria, especially the Pseudomonas putida strain, improved the water balance through increasing water absorption, increased biomass due to increasing the rate of photosynthesis, and also increased the activity of antioxidant enzymes to reduce the negative effects of water deficit stress in peppermint.
Article number: 24
Type of Study: Research |
Subject:
Droughts Stress
Received: 2024/01/3 | Accepted: 2024/05/14 | Published: 2024/12/24
Received: 2024/01/3 | Accepted: 2024/05/14 | Published: 2024/12/24
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