Changes in pathogenesis-related gene expression in response to bioformulations in the apoplast of maize leaves against Fusarium oxysporum

Journal of plant interactions

article

Usmara Riaz Butt¹  Rabia Naz¹  Asia Nosheen¹  Humaira Yasmin¹  Rumana Keyani¹  Ishtiaq Hussain²  Muhammad Nadeem Hassan¹ 

[1] a Department of Biosciences, COMSATS University;b Department of Agriculture, University of Baltistan

关键词: Wilting;    methyl jasmonate;    chitosan;    plant extracts;    defense enzymes;    gene expression;   

DOI  :  10.1080/17429145.2018.1550217

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

In present study, we initially tested four different plant species Aristolochia indica (leaf) , Cuscuta pedicellata (stem) , Melilotus indicus (leaf) and Tribulus terresteris (leaf and fruit) for their antifungal potential against F. oxysporum. Among the studied plant species, T. terresteris (fruit) and C. pedicellate showed the maximum antifungal potential by 92% and 89%, respectively. We then investigated the potential of CHI, MeJA, and plant extracts ( C. pedicellate and T. terristris ) alone as well as in combinations in pot experiment. Treatments with the extracts of C. pedicellata and T. terresteris in combination with MeJA resulted in decrease in disease severity by 93% and 89%, respectively, and enhanced the plant growth. We observed significant elevated levels of expression of pathogenesis-related (PR-1) proteins (β-1-3-glucanase, chitinase, phenyl-alanine ammonia lyase (PAL), lipoxygenase, lipid transfer protein and PR protein) and defense enzymes (β-1-3-glucanase, chitinase, peroxidase, polyphenoloxidase and PAL) in the CHI and MeJA in combination with plant extracts-treated plants for defense signaling pathways in the apoplast of maize leaves compared to the inoculated control. We found CHI in combination with C. pedicellata most effectively induced the plant defense mechanisms against F. oxysporum through increased induction in the level of expression of PR-proteins.

【 授权许可】

CC BY|CC BY-NC