A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry
Strawberry, an important fruit crop, is susceptible to a large number of pathogens that reduce fruit quality and productivity. In this study, the effect of a biostimulant prepared from Ascophyllum nodosum extract (ANE) (0.1%, 0.2%, and 0.3%) was evaluated on powdery mildew progression under greenhou...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Hanrimwon Publishing Company
2019-10-01
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| Series: | The Plant Pathology Journal |
| Subjects: | |
| Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6788409 |
| _version_ | 1818612986743357440 |
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| author | Sruti Bajpai Pushp Sheel Shukla Samuel Asiedu Kris Pruski Balakrishnan Prithiviraj |
| author_facet | Sruti Bajpai Pushp Sheel Shukla Samuel Asiedu Kris Pruski Balakrishnan Prithiviraj |
| author_sort | Sruti Bajpai |
| collection | DOAJ |
| description | Strawberry, an important fruit crop, is susceptible to a large number of pathogens that reduce fruit quality and productivity. In this study, the effect of a biostimulant prepared from Ascophyllum nodosum extract (ANE) (0.1%, 0.2%, and 0.3%) was evaluated on powdery mildew progression under greenhouse and field conditions. In the greenhouse, application of 0.2% ANE showed maximum reduction in powdery mildew progression as compared to the control. Forty-eight hour post-inoculation, foliar spray of 0.2% ANE reduced spore germination by 75%. Strawberry leaves sprayed with ANE showed higher total phenolic and flavonoid content in response to powdery mildew infection. Furthermore, application of ANE elicited defense response in strawberry plants by induction of defense-related enzymes, such as phenylalanine ammonia lyase, polyphenol oxidase, and peroxidase activity. In field conditions, foliar spray of 0.2% ANE showed a reduction of 37.2% of natural incidence of powdery mildew infection as compared to the control. ANE sprayed plant also reduces the severity of powdery mildew infection under natural conditions. These results indicate that application of ANE induces the strawberry plant's active defense against powdery mildew infection by induction of secondary metabolism and regulating the activities of defense-related enzymes. |
| first_indexed | 2024-12-16T15:54:56Z |
| format | Article |
| id | doaj.art-d46310d46eeb4b0eba7a06439473c53e |
| institution | Directory Open Access Journal |
| issn | 1598-2254 |
| language | English |
| last_indexed | 2024-12-16T15:54:56Z |
| publishDate | 2019-10-01 |
| publisher | Hanrimwon Publishing Company |
| record_format | Article |
| series | The Plant Pathology Journal |
| spelling | doaj.art-d46310d46eeb4b0eba7a06439473c53e2022-12-21T22:25:36ZengHanrimwon Publishing CompanyThe Plant Pathology Journal1598-22542019-10-0135540641610.5423/PPJ.OA.03.2019.006610.5423PPJ.OA.03.2019.0066A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of StrawberrySruti Bajpai0Pushp Sheel Shukla1Samuel Asiedu2Kris Pruski3Balakrishnan Prithiviraj4Marine Bio-products Research Laboratory, Department of Plant, Food and Environmental Sciences, Dalhousie University, Truro, NS B2N 5E3, CanadaMarine Bio-products Research Laboratory, Department of Plant, Food and Environmental Sciences, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Plant, Food and Environmental Sciences, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Plant, Food and Environmental Sciences, Dalhousie University, Truro, NS B2N 5E3, CanadaMarine Bio-products Research Laboratory, Department of Plant, Food and Environmental Sciences, Dalhousie University, Truro, NS B2N 5E3, CanadaStrawberry, an important fruit crop, is susceptible to a large number of pathogens that reduce fruit quality and productivity. In this study, the effect of a biostimulant prepared from Ascophyllum nodosum extract (ANE) (0.1%, 0.2%, and 0.3%) was evaluated on powdery mildew progression under greenhouse and field conditions. In the greenhouse, application of 0.2% ANE showed maximum reduction in powdery mildew progression as compared to the control. Forty-eight hour post-inoculation, foliar spray of 0.2% ANE reduced spore germination by 75%. Strawberry leaves sprayed with ANE showed higher total phenolic and flavonoid content in response to powdery mildew infection. Furthermore, application of ANE elicited defense response in strawberry plants by induction of defense-related enzymes, such as phenylalanine ammonia lyase, polyphenol oxidase, and peroxidase activity. In field conditions, foliar spray of 0.2% ANE showed a reduction of 37.2% of natural incidence of powdery mildew infection as compared to the control. ANE sprayed plant also reduces the severity of powdery mildew infection under natural conditions. These results indicate that application of ANE induces the strawberry plant's active defense against powdery mildew infection by induction of secondary metabolism and regulating the activities of defense-related enzymes.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6788409Ascophyllum nodosum extractphenylalanine ammonia lyasePodosphaera aphanispowdery mildewstrawberry |
| spellingShingle | Sruti Bajpai Pushp Sheel Shukla Samuel Asiedu Kris Pruski Balakrishnan Prithiviraj A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry The Plant Pathology Journal Ascophyllum nodosum extract phenylalanine ammonia lyase Podosphaera aphanis powdery mildew strawberry |
| title | A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry |
| title_full | A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry |
| title_fullStr | A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry |
| title_full_unstemmed | A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry |
| title_short | A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry |
| title_sort | biostimulant preparation of brown seaweed ascophyllum nodosum suppresses powdery mildew of strawberry |
| topic | Ascophyllum nodosum extract phenylalanine ammonia lyase Podosphaera aphanis powdery mildew strawberry |
| url | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6788409 |
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