Abstract
Endophytic fungi are a well-known fascinating host-associated fungal group that can enhance plant growth and fitness by producing various bioactive secondary metabolites. They are an excellent source of industrial enzymes for potential secondary metabolite synthesis, which is useful in green agriculture, biotechnology, and pharmaceuticals. Itea is a valuable plant genus since it naturally contains rare sugar; however, endophytic fungi associated in this host have not yet been documented. In the present study, 11 strains of endophytic fungi were isolated and primarily identified as pestalotioid taxa based on morphological characteristics exhibited in vitro . Eleven strains of Pestalotiopsis- like taxa were isolated from the healthy leaves, stems, and roots of Itea japonica and I. riparia from Chiang Mai Province, Thailand. Species delimitation was based on morphology, multiloci phylogeny of a concatenated ITS, tub2 , and tef1-α sequence data, and nucleotide polymorphism analyses. Neopestalotiopsis iteae and Pseudopestalotiopsis iteae are proposed as new species on I. japonica and I. riparia , respectively. Neopestalotiopsis chrysea , N. haikouensis , and Pestalotiopsis jinchanghensis are described as new records on I. riparia . Owing to the conspecific relationship based on multiloci phylogeny and identically nucleotide pairwise comparison of sufficient gene regions, several species are synonymized including Neopestalotiopsis cercidicola and N. terricola as N. haikouensis , N. umbrinospora as N. chrysea , and Pestalotiopsis zhaoqingensis as P. jinchanghensis . The updated phylogenetic trees, nucleotide comparisons, and morphological descriptions are herein provided and discussed for the taxonomic placements of these new species and records. This study is the first to investigate Itea endophytes in Thailand, and it reveals the intra- and interspecific relationships of pestalotioid species, which need to be further reevaluated because of ambiguous taxa.
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Claims 11
Claim · model-written summary
Eleven pestalotioid strains were isolated from Itea leaves, stems and roots in Chiang Mai.
- Taxon
- Itea japonica
Itea japonicae0 - Organ / stage
- healthy leaves, stems, and rootse0
- Interactor
- Pestalotiopsis- like taxae0symbiont
- Outcome
- Pestalotiopsis- like taxa were isolatede0
- Value
- Eleven strainse0
- Setting
- Chiang Mai Province, Thailande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Eleven strains of Pestalotiopsis- like taxa were isolated from the healthy leaves, stems, and roots of Itea japonica and I. riparia from Chiang Mai Province, Thailand”
Claim · model-written summary
Neopestalotiopsis iteae was proposed as a new species on I. japonica.
- Taxon
- I. japonica
Itea japonicae0 - Interactor
- Neopestalotiopsis iteaee0symbiont
- Outcome
- proposed as new speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Neopestalotiopsis iteae and Pseudopestalotiopsis iteae are proposed as new species on I. japonica and I. riparia , respectively”
Claim · model-written summary
Pseudopestalotiopsis iteae was proposed as a new species on I. riparia.
- Taxon
- I. riparia
Hyloniscus ripariuse0 - Interactor
- Pseudopestalotiopsis iteaee0symbiont
- Outcome
- proposed as new speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Neopestalotiopsis iteae and Pseudopestalotiopsis iteae are proposed as new species on I. japonica and I. riparia , respectively”
Claim · model-written summary
Neopestalotiopsis chrysea was newly recorded on I. riparia.
- Taxon
- I. riparia
Hyloniscus ripariuse0 - Interactor
- Neopestalotiopsis chryseaNeopestalotiopsis chryseae0symbiont
- Outcome
- new recordse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Neopestalotiopsis chrysea , N. haikouensis , and Pestalotiopsis jinchanghensis are described as new records on I. riparia”
Claim · model-written summary
N. haikouensis was newly recorded on I. riparia.
- Taxon
- I. riparia
Hyloniscus ripariuse0 - Interactor
- N. haikouensisNeopestalotiopsis haikouensise0symbiont
- Outcome
- new recordse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Neopestalotiopsis chrysea , N. haikouensis , and Pestalotiopsis jinchanghensis are described as new records on I. riparia”
Claim · model-written summary
Pestalotiopsis jinchanghensis was newly recorded on I. riparia.
- Taxon
- I. riparia
Hyloniscus ripariuse0 - Interactor
- Pestalotiopsis jinchanghensisPestalotiopsis jinchanghensise0symbiont
- Outcome
- new recordse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Neopestalotiopsis chrysea , N. haikouensis , and Pestalotiopsis jinchanghensis are described as new records on I. riparia”
Claim · model-written summary
Neopestalotiopsis cercidicola was synonymized with N. haikouensis.
- Taxon
- I. riparia
Hyloniscus ripariuse1 - Interactor
- Neopestalotiopsis cercidicolae0symbiont
- Outcome
- Neopestalotiopsis cercidicola and N. terricola as N. haikouensise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Neopestalotiopsis cercidicola and N. terricola as N. haikouensis”
e1“I. riparia from Chiang Mai Province, Thailand”
Claim · model-written summary
N. terricola was synonymized with N. haikouensis.
- Taxon
- I. riparia
Hyloniscus ripariuse1 - Interactor
- N. terricolaNeopestalotiopsis terricolae0symbiont
- Outcome
- N. terricola as N. haikouensise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Neopestalotiopsis cercidicola and N. terricola as N. haikouensis”
e1“I. riparia from Chiang Mai Province, Thailand”
Claim · model-written summary
N. umbrinospora was synonymized with N. chrysea.
- Taxon
- I. riparia
Hyloniscus ripariuse1 - Interactor
- N. umbrinosporaNeopestalotiopsis umbrinosporae0symbiont
- Outcome
- N. umbrinospora as N. chryseae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“N. umbrinospora as N. chrysea”
e1“I. riparia from Chiang Mai Province, Thailand”
Claim · model-written summary
Pestalotiopsis zhaoqingensis was synonymized with P. jinchanghensis.
- Taxon
- I. riparia
Hyloniscus ripariuse1 - Interactor
- Pestalotiopsis zhaoqingensisPestalotiopsis zhaoqingensise0symbiont
- Outcome
- Pestalotiopsis zhaoqingensis as P. jinchanghensise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_5_(cropped).jpg?width=500)
Verbatim
e0“Pestalotiopsis zhaoqingensis as P. jinchanghensis”
e1“I. riparia from Chiang Mai Province, Thailand”
Claim · model-written summary
The study reveals intra- and interspecific relationships among Itea pestalotioid endophytes that need reevaluation.
- Interactor
- pestalotioid speciese0symbiont
- Outcome
- intra- and interspecific relationships of pestalotioid speciese0
- Qualifier
- ambiguous taxae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“it reveals the intra- and interspecific relationships of pestalotioid species, which need to be further reevaluated because of ambiguous taxa”
e1“Itea endophytes in Thailand”