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Trichoderma spp. on treatment of Handroanthus serratifolius seeds: effect on seedling germination and development

2020Journal article Open access
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dc.contributor.authorSantos, Misael Freitas dos
dc.contributor.authorSantos, Lizandra Elizeário dos
dc.contributor.authorCosta, Daniele Lima da
dc.contributor.authorVieira, T.A.
dc.contributor.authorLustosa, Denise Castro
dc.date.accessioned2020-07-17T13:03:35Z
dc.date.available2020-07-17T13:03:35Z
dc.date.issued2020
dc.description.abstractFungi of the genus Trichoderma are important microorganisms used in biocontrol processes and the promotion of plant development. However, they remain poorly studied in the context of forestry programs, especially those related to native Amazonian species. Thus, it is the aim of this study to evaluate the effects of different Trichoderma isolates on the germination and development of Handroanthus serratifolius seedlings. During in vitro germination tests, seeds were immersed for 24 h in respective fungal suspensions each prepared using one of five Trichoderma isolates. The suspensions were held in plastic trays and kept at a temperature of 24 ± 2 °C. Metrics related to germination and development assessed under laboratory conditions include: germination speed index (GSI), germination percentage, length of the roots, and hypocotyls, as well as fungal perseverance. In the nursery, Trichoderma were used in two different applications: pre-planting treatment and as a monthly, post-planting treatment. Pre-planting treatments consisted of 10 g of colonized rice grains bearing each isolate being placed into experimental bags five days before seeding. The post-planting treatment involved the application of 10 mL of fungal suspension per experimental bag. Each month, the height, stem diameter, and leaf number were measured for each seedling. At the end of the experiment, the length and mass of roots as well as the total dry mass were recorded. In laboratory conditions, seeds treated with Trichoderma asperellum -TAM03 obtained the greatest fractional germination (76.5%) and GSI. In the nursery experiments, isolates TAM01 and TAM03, when applied as a post-planting treatment, increased the height, stem diameter, and number of leaves of treated plants with respect to the control group by 180 days post-treatment. After 365 days, plants which received TAM01 pre-planting treatments were observed to have increased root and aerial part length, as well as root mass and overall dry mass. These results suggest that T. asperellum -TAM01 positively affects H. serratifolius development.pt_PT
dc.description.sponsorshipInstitutional Scientific Initiation Scholarship Program (PIBIC/UFOPA)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.heliyon.2020.e04044pt_PT
dc.identifier.issn2405-8440
dc.identifier.urihttp://hdl.handle.net/10400.1/14099
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiotechnologypt_PT
dc.subjectGrowth promotionpt_PT
dc.subjectBiological treatmentpt_PT
dc.subjectBiological sciencept_PT
dc.subjectMicrobiologypt_PT
dc.subjectPhysiologypt_PT
dc.subjectPlant biologypt_PT
dc.subjectEnvironmental sciencept_PT
dc.subjectSustainable forestrypt_PT
dc.subjectSeedling productionpt_PT
dc.subjectYellow ipept_PT
dc.titleTrichoderma spp. on treatment of Handroanthus serratifolius seeds: effect on seedling germination and developmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6pt_PT
oaire.citation.startPagee04044pt_PT
oaire.citation.titleHeliyonpt_PT
oaire.citation.volume6pt_PT
person.familyNameAlmeida Vieira
person.givenNameThiago
person.identifier.ciencia-idAA13-844F-0B88
person.identifier.orcid0000-0001-9926-2606
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication15ec4aa4-ac4f-4515-8eee-627079875ef3
relation.isAuthorOfPublication.latestForDiscovery15ec4aa4-ac4f-4515-8eee-627079875ef3

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