Salicylic and Jasmonic Acid Synergism During Black Knot Disease Progression in Plums

Ranjeet Shinde; Murali-Mohan Ayyanath; Mukund Shukla; Walid El Kayal; Praveen Kumar Saxena; Jayasankar Subramanian

doi:10.20944/preprints202311.0840.v1

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preprints.org > biology and life sciences > horticulture > doi: 10.20944/preprints202311.0840.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Salicylic and Jasmonic Acid Synergism During Black Knot Disease Progression in Plums

Ranjeet Shinde

Murali-Mohan Ayyanath

Mukund Shukla

Walid El Kayal

Praveen Kumar Saxena

Jayasankar Subramanian

Version 1 : Received: 9 November 2023 / Approved: 13 November 2023 / Online: 14 November 2023 (17:02:51 CET)

A peer-reviewed article of this Preprint also exists.

Shinde, R.; Ayyanath, M.-M.; Shukla, M.; El Kayal, W.; Saxena, P.K.; Subramanian, J. Salicylic and Jasmonic Acid Synergism during Black Knot Disease Progression in Plums. Plants 2024, 13, 292. Shinde, R.; Ayyanath, M.-M.; Shukla, M.; El Kayal, W.; Saxena, P.K.; Subramanian, J. Salicylic and Jasmonic Acid Synergism during Black Knot Disease Progression in Plums. Plants 2024, 13, 292.

Abstract

Black Knot (BK) is a deadly disease of European (Prunus domestica) and Japanese (Prunus salicina) plums caused by the hemibiotrophic fungus Apiosporina morbosa. Generally, phytopathogens hamper the balance of primary defense phytohormones such as salicylic acid (SA)-jasmonic acid (JA) balance for disease progression. Thus, we quantified the important phytohormones titers in tissues of susceptible and resistant genotypes belonging to European and Japanese plums at five different time points. The results suggested auxin-cytokinins interplay driven by A. morbosa appeared to be vital in disease progression by hampering the plant defense system via perturbance in SA, JA, and gibberellic acid. The results further point out that SA and JA in plant defense are not necessarily antagonistic always, especially in woody perennials. Results also suggest that the changes in SA and JA content following BK disease infection and progression in plums could be utilized as phytohormonal markers in the identification of BK-resistant cultivars.

Keywords

Apiosporina morbosa; black knot; phytohormones; plant growth regulators; plant immunity; plant-pathogen interactions

Subject

Biology and Life Sciences, Horticulture

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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