| Authors | Mehdi Khayyat |
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| Journal | JOURNAL OF HORTICULTURE AND POSTHARVEST RESEARCH |
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| Page number | 67-80 |
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| Serial number | 4 |
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| Volume number | 1 |
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| Paper Type | Full Paper |
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| Published At | 2021 |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | isc،Scopus |
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| Keywords | Alfamovirus, Chlorophyll, Manganese, Tolerance |
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Abstract
Purpose: The present research was conducted to evaluate
interactive effects of manganese (Mn) and Alfalfa mosaic virus
(AMV) on some physiological characteristics of two pepper varieties
including PS301 and California Wonder under greenhouse
conditions. Research Methods: Treatments included two levels of
virus infection (infected and non-infected), three levels of Mn
concentrations (No manganese: 0ppm, 5ppm and 10ppm) and two
varieties (California Wonder and PS301). After three weeks, total
chlorophyll (Chl), carbohydrate, antioxidants, phenolic compounds,
dry weight and proline were measured in aerial parts. Findings: The
highest antioxidant activity observed in California Wonder treated
with AMV and 5ppm Mn. The highest total Chl observed in PS301
when treated with 10 ppm Mn. Interaction between Mn and AMV
showed the highest dry weight in virus infected plants without Mn
supplying. Simple effects of AMV did not influence on total Chl, total
carbohydrate and antioxidant, but significantly dcreased dry weight.
Application of Mn significantly increased proline and carotenoid
contents in infected plants. Research limitations: analysis of
proteins that play important roles in resistance mechanism to plant
viruses has not been measured because of restriction of accessibility
of western blotting at the University of Birjand. Originality/Value: It
is concluded that AMV infection could be ameliorated by
manganese supplying because of improvement of antioxidant
system and phenol content that lead to viral tolerance in pepper.
