Effect of Trichoderma spp. on Growth Promotion and Antioxidative Activity of Pepper Seedlings

Bibliographic Details
Title: Effect of Trichoderma spp. on Growth Promotion and Antioxidative Activity of Pepper Seedlings
Authors: Tančić-Živanov, Sonja, Medić-Pap, Slađana, Danojević, Dario, Prvulović, Dejan
Source: Brazilian Archives of Biology and Technology. January 2020 63
Publisher Information: Instituto de Tecnologia do Paraná - Tecpar, 2020.
Publication Year: 2020
Subject Terms: biopriming, germination, growth enhancement, seeds, ROS
More Details: One of the main challenges in pepper production is to enhance seed germination energy and germination, and to grow healthy nursery plants with strong root system. Trichoderma species colonize roots as they grow and provide season-long benefits to plants, which is why Trichoderma species are widely used as plant growth promoter agents and promoters of plant defence mechanisms. This study evaluated the effectiveness of seed biopriming with Trichoderma isolates for growth promotion of pepper plants in early stage and their effects on seedling physiology. Nine out of ten Trichoderma isolates positively affected root weight of pepper seedlings, while three out of ten positively affected shoot weight. Root and shoot lengths were mainly unaffected. Germination energy was positively affected by five isolates with up to 40% increase compared to the control, while germination was significantly enhanced by two isolates with up to 22% increase. Considering seedling physiology, two different strain-dependent modes of actions were expressed. Promising Trichoderma isolates induced formation and accumulation of reactive oxygen species (ROS) which acted as signal molecules that increased germination energy and germination. Positive correlation was found between pyrogallol peroxidase, superoxide dismutase, catalase activity and germination in plants treated with these isolates.
Document Type: article
File Description: text/html
Language: English
ISSN: 1516-8913
DOI: 10.1590/1678-4324-2020180659
Access URL: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100218
Rights: info:eu-repo/semantics/openAccess
Accession Number: edssci.S1516.89132020000100218
Database: SciELO
More Details
ISSN:15168913
DOI:10.1590/1678-4324-2020180659
Published in:Brazilian Archives of Biology and Technology
Language:English