Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress
The objective of this study was to determine the effects of foliar application of polyamines (PAs) on antioxidant defence and essential oil production of valerian (Valeriana officinalis L.) grown under different drought stress treatments (100, 70, 50 and 30% available water content). This study was...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Ljubljana Press (Založba Univerze v Ljubljani)
2016-04-01
|
| Series: | Acta Agriculturae Slovenica |
| Subjects: | |
| Online Access: | https://journals.uni-lj.si/aas/article/view/12655 |
| _version_ | 1797758951528333312 |
|---|---|
| author | Seyed Hamid MUSTAFAVI Fariborz SHEKARI Hamid Hatami MALEKI |
| author_facet | Seyed Hamid MUSTAFAVI Fariborz SHEKARI Hamid Hatami MALEKI |
| author_sort | Seyed Hamid MUSTAFAVI |
| collection | DOAJ |
| description | The objective of this study was to determine the effects of foliar application of polyamines (PAs) on antioxidant defence and essential oil production of valerian (Valeriana officinalis L.) grown under different drought stress treatments (100, 70, 50 and 30% available water content). This study was carried out using pots in greenhouse condition. Drought–stressed valerian seedlings were sprayed with 1 mM concentration of each putrescine (Put), spermidine (Spd) and spermine (Spm). The results showed that drought stress significantly affected most biochemical characteristics of valerian plants. Characteristics including leaf relative water content, chlorophyll a and b contents were decreased, while carotenoids and electrolyte leakage were increased with the increase of water stress. In this research, defensive characteristics comprising proline content, soluble sugars, catalase, and ascorbate peroxidase were increased followed by drought stress to ameliorate the adverse effect of it. Results revealed that foliar application of Spd and Spm provoked the antioxidant enzymes activity as well as proline accumulation in valerian which alleviate the membrane damages. Consequently, Spd and Spm increased photosynthetic pigments which act as energy supply for plant growth and production. Here, putrescine had detrimental effects on CAT activity and Chl a content. Albeit, PAs presented remarkable effects under moderate drought stress condition but it showed reverse trends in severe drought stress condition. In terms of quantity and quality yield, drought stress reduced root growth but increased the concentration of essential oils. PAs are able to alleviate water deficit-induced diminish root growth. These results suggest that in moderate drought stress, growers can use PAs to increase productivity valerian. |
| first_indexed | 2024-03-12T18:37:24Z |
| format | Article |
| id | doaj.art-ed3ee7931df941cf9a8a59e622f1421c |
| institution | Directory Open Access Journal |
| issn | 1854-1941 |
| language | English |
| last_indexed | 2024-03-12T18:37:24Z |
| publishDate | 2016-04-01 |
| publisher | University of Ljubljana Press (Založba Univerze v Ljubljani) |
| record_format | Article |
| series | Acta Agriculturae Slovenica |
| spelling | doaj.art-ed3ee7931df941cf9a8a59e622f1421c2023-08-02T07:56:22ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412016-04-01107110.14720/aas.2016.107.1.0919047Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stressSeyed Hamid MUSTAFAVI0Fariborz SHEKARI1Hamid Hatami MALEKI2Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, IranDepartment of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, IranDepartment of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, IranThe objective of this study was to determine the effects of foliar application of polyamines (PAs) on antioxidant defence and essential oil production of valerian (Valeriana officinalis L.) grown under different drought stress treatments (100, 70, 50 and 30% available water content). This study was carried out using pots in greenhouse condition. Drought–stressed valerian seedlings were sprayed with 1 mM concentration of each putrescine (Put), spermidine (Spd) and spermine (Spm). The results showed that drought stress significantly affected most biochemical characteristics of valerian plants. Characteristics including leaf relative water content, chlorophyll a and b contents were decreased, while carotenoids and electrolyte leakage were increased with the increase of water stress. In this research, defensive characteristics comprising proline content, soluble sugars, catalase, and ascorbate peroxidase were increased followed by drought stress to ameliorate the adverse effect of it. Results revealed that foliar application of Spd and Spm provoked the antioxidant enzymes activity as well as proline accumulation in valerian which alleviate the membrane damages. Consequently, Spd and Spm increased photosynthetic pigments which act as energy supply for plant growth and production. Here, putrescine had detrimental effects on CAT activity and Chl a content. Albeit, PAs presented remarkable effects under moderate drought stress condition but it showed reverse trends in severe drought stress condition. In terms of quantity and quality yield, drought stress reduced root growth but increased the concentration of essential oils. PAs are able to alleviate water deficit-induced diminish root growth. These results suggest that in moderate drought stress, growers can use PAs to increase productivity valerian.https://journals.uni-lj.si/aas/article/view/12655biochemical characteristicsdrought stressessential oilspolyaminesValeriana officinalis |
| spellingShingle | Seyed Hamid MUSTAFAVI Fariborz SHEKARI Hamid Hatami MALEKI Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress Acta Agriculturae Slovenica biochemical characteristics drought stress essential oils polyamines Valeriana officinalis |
| title | Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress |
| title_full | Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress |
| title_fullStr | Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress |
| title_full_unstemmed | Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress |
| title_short | Influence of exogenous polyamines on antioxidant defence and essential oil production in valerian (Valeriana officinalis L.) plants under drought stress |
| title_sort | influence of exogenous polyamines on antioxidant defence and essential oil production in valerian valeriana officinalis l plants under drought stress |
| topic | biochemical characteristics drought stress essential oils polyamines Valeriana officinalis |
| url | https://journals.uni-lj.si/aas/article/view/12655 |
| work_keys_str_mv | AT seyedhamidmustafavi influenceofexogenouspolyaminesonantioxidantdefenceandessentialoilproductioninvalerianvalerianaofficinalislplantsunderdroughtstress AT fariborzshekari influenceofexogenouspolyaminesonantioxidantdefenceandessentialoilproductioninvalerianvalerianaofficinalislplantsunderdroughtstress AT hamidhatamimaleki influenceofexogenouspolyaminesonantioxidantdefenceandessentialoilproductioninvalerianvalerianaofficinalislplantsunderdroughtstress |