Passion Fruit (Passiflora spp.) species as sources of resistance to soil phytopathogens Fusarium solani and Fusarium oxysporum f. sp. Passiflorae complex

Juliana Avelar de Carvalho,Kelly Lana Araujo,Jeferson Gonçalves de Jesus,Leonarda Grillo Neves,Thiago Alexandre Santana Gilio,Milson Evaldo Serafim

doi:10.1590/0100-29452021427

Juliana Avelar de Carvalho, Kelly Lana Araujo + Show 4 more

Open Access

https://doi.org/10.1590/0100-29452021427

Copy DOI

Abstract

Abstract The stem rot and fusarium vascular wilt are among the main factors the most limiting the passion fruit cultivation in the State of Mato Grosso. This study aimed to evaluate the resistance / susceptibility of the genus Passiflora species to soil pathogens from different biomes of Mato Grosso (Cerrado, Pantanal and Amazon). The part I evaluated the response of P. edulis Sims, P. foetida, P. nitida and P. quadrangularis on eight isolates of F. solani. In part II was evaluated the genotypes P. edulis Sims, P. mucronata, P. foetida, P. nitida and P. morifolia on three isolates of F. oxysporum f. sp. passiflorae. The experimental design was randomized blocks in factorial arrangement (genotypes x isolates). The statistical analysis used for both steps were the variance analyses by F test and grouping of averages of genotypes by Scott-Knott test (P =0.05). Among the isolates of F. solani was found that isolates FS8A and FS3P are more aggressive, indicating genetic variability among isolates. The most resistant genotypes to the pathogen were P. nitidaand P. foetida. Among the isolates of F. oxysporum f. sp. passiflorae there was no significant difference in aggressive levels, and the P. mucronata and P. nitida species are more resistant to Fusarium. Thus genotypes P. nitida, foetida and P. mucronatacan be indicated as a resistance source to improvement of commercial passionfruit programs.

Highlights

Passion fruit is generally associated with species of the Passifloraceae family, those belonging to the genus Passiflora There are more than 400 species in the genus Passiflora, which, about these species Passiflora edulis is the most widely cultivated,and it belongs to the Theoideae suborder, Passifloraceae family, and Passiflora L. genus
Brazil is considered an important center of genetic diversity of the genus Passiflora, with approximately 141 known native species with wide use in the food, drug and ornamental areas (BERNACCI et al, 2014), it is known as the largest world producer of passion fruit (FAO 2019)
These resistant differences were observed with the resistance characteristics Area Under the Disease Progress Curve (AUDPC), NPLM and NPL-50%. differences of aggressiveness were observed between isolates with the resistance traits Number of dead plants (NDP) and IPLR+50% (Table 3)

Summary

Introduction

Passion fruit is generally associated with species of the Passifloraceae family, those belonging to the genus Passiflora There are more than 400 species in the genus Passiflora, which, about these species Passiflora edulis is the most widely cultivated,and it belongs to the Theoideae suborder, Passifloraceae family, and Passiflora L. genus. Among the diseases important to passion fruit in Brazil, collar rot, caused by the fungus Fusarium solani, and fusariosis, caused by Fusarium oxysporum f. Passiflorae, are highlighted (SILVA et al, 2013) due the high susceptibility of all the varieties from the specie Passiflora edulis Sims These soil fungi have caused great damage to the passion fruit crop by causing plant death and reduced plant life (PREISIGKE et al, 2015a). In order to control collar rot and fusariosis, resistant wild species are used as rootstocks for sour passion fruit and/or for obtaining interspecific hybrids (FLORES et al, 2012; SANTOS et al, 2016). The most efficient form of control of this disease is the use of resistant cultivars. there are reports of resistance in wild species PREISIGKE et al, 2015a; MAROSTEGA et al, 2019)

Objectives

Methods

Results