Abstract
Blueberries (Vaccinium corymbosum) are widely cultivated worldwide and largely consumed due to their known antioxidant and medicinal properties. Although Diaporthe species have been documented in Portugal as causal agents of blueberry twig blight and dieback, there is still scarce information on the species that cause these symptoms. Moreover, Diaporthe vaccinii, recently synonymized with D. eres, has been considered a concern to blueberry production worldwide. However, the current knowledge about its impact on blueberries remains unclear. The diversity of Diaporthe species associated with diseased blueberry plants were assessed through a national survey. A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis. Moreover, all species were fully characterized based on a detailed morphological description. Diaporthe amygdali, D. hybrida, D. leucospermi and D. malorum are reported for the first time on diseased blueberries in Portugal. Results show that D. eres exhibited a high level of intraspecific variability within isolates, given that the strain CBS 160.32 might be a minor pathogen on blueberry plants, whereas CAA829 was revealed to be the most aggressive. Overall, this study also demonstrates that Diaporthe amygdali and D. eres may be two of the most aggressive species to blueberry plants. This study improves our understanding of the Diaporthe species and it’s causing of dieback and twig blight on Portuguese blueberry orchards. Additionally, the identification of these pathogens represents crucial information for blueberry producers to apply appropriate phytosanitary measures, as well as offering new insights into the potential pathogenicity of D. eres on this host.
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Claims 17
Claim · model-written summary
Diaporthe ambigua was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- Diaporthe ambiguaDiaporthe ambiguae0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. amygdali was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- D. amygdaliDiaporthe amygdalie0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. crousii was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- D. crousiiDiaporthe crousiie0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. foeniculina was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- D. foeniculinaDiaporthe foeniculinae0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. hybrida was found on diseased blueberry plants.
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. leucospermi was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- D. leucospermiDiaporthe leucospermie0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. malorum was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- D. malorumDiaporthe malorume0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
D. rudis was found on diseased blueberry plants.
- Taxon
- Blueberryt0
- Interactor
- D. rudisDiaporthe rudise0pathogen
- Outcome
- presence of Diaporthee0
Verbatim
e0“A multilocus sequence analysis of the rDNA internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (tef1-α), β-tubulin (tub2), calmodulin (cal) and histone 3 (his3) genes unveiled the presence of Diaporthe ambigua, D. amygdali, D. crousii, D. foeniculina, D. hybrida, D. leucospermi, D. malorum and D. rudis”
t0“Blueberry Orchards”
Claim · model-written summary
Diaporthe amygdali was first reported on diseased blueberries in Portugal.
- Taxon
- blueberriese0
- Interactor
- Diaporthe amygdaliDiaporthe amygdalie0pathogen
- Outcome
- reported for the first timee0
- Setting
- Portugale0
Verbatim
e0“Diaporthe amygdali, D. hybrida, D. leucospermi and D. malorum are reported for the first time on diseased blueberries in Portugal”
Claim · model-written summary
D. hybrida was first reported on diseased blueberries in Portugal.
Verbatim
e0“Diaporthe amygdali, D. hybrida, D. leucospermi and D. malorum are reported for the first time on diseased blueberries in Portugal”
Claim · model-written summary
D. leucospermi was first reported on diseased blueberries in Portugal.
- Taxon
- blueberriese0
- Interactor
- D. leucospermiDiaporthe leucospermie0pathogen
- Outcome
- reported for the first timee0
- Setting
- Portugale0
Verbatim
e0“Diaporthe amygdali, D. hybrida, D. leucospermi and D. malorum are reported for the first time on diseased blueberries in Portugal”
Claim · model-written summary
D. malorum was first reported on diseased blueberries in Portugal.
- Taxon
- blueberriese0
- Interactor
- D. malorumDiaporthe malorume0pathogen
- Outcome
- reported for the first timee0
- Setting
- Portugale0
Verbatim
e0“Diaporthe amygdali, D. hybrida, D. leucospermi and D. malorum are reported for the first time on diseased blueberries in Portugal”
Claim · model-written summary
D. eres isolates showed high intraspecific variability.
- Taxon
- Blueberryt0
- Interactor
- D. eres
Diaporthe erese0pathogen - Outcome
- high level of intraspecific variabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. eres exhibited a high level of intraspecific variability within isolates”
t0“Blueberry Orchards”
Claim · model-written summary
CBS 160.32 may be a minor blueberry pathogen.
Verbatim
e0“the strain CBS 160.32 might be a minor pathogen on blueberry plants”
Claim · model-written summary
CAA829 was the most aggressive isolate on blueberry.
Verbatim
e0“whereas CAA829 was revealed to be the most aggressive”
t0“Blueberry Orchards”
Claim · model-written summary
Diaporthe amygdali may be among the most aggressive species on blueberry plants.
- Taxon
- blueberrye0
- Interactor
- Diaporthe amygdaliDiaporthe amygdalie0pathogen
- Outcome
- most aggressive speciese0
Verbatim
e0“Diaporthe amygdali and D. eres may be two of the most aggressive species to blueberry plants”
Claim · model-written summary
D. eres may be among the most aggressive species on blueberry plants.
- Taxon
- blueberrye0
- Interactor
- D. eresDiaporthe erese0pathogen
- Outcome
- most aggressive speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diaporthe amygdali and D. eres may be two of the most aggressive species to blueberry plants”