Histopathology of red crown rot of soybean

Yamamoto, Ryō; Nakagawa, Akio; Shimada, Shinji; Komatsu, Setsuko; Kanematsu, S.

doi:10.1007/s10327-016-0694-3

Cited by 12 publications

(12 citation statements)

References 13 publications

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“…We found many fungal genera/species in healthy soybean roots that are well-known pathogen species of soybean and/or other plants such as wheat. For example, Fusarium , Macrophomina , Rhizoctonia , and Alternaria cause root rot or foliar and stem blight in soybeans ( Lu et al, 2015a , 2015b ; Ramos et al, 2016 ; Yamamoto et al, 2017 ). Our preliminary pathogenicity assays for some of these isolates showed that many of them may be truly asymptomatic in soybean seedlings, while some were able to cause disease symptoms, indicating that they may be latent pathogens that cause disease under stress or at a later time during plant growth.…”

Section: Discussionmentioning

confidence: 99%

Endophytic fungal communities associated with field-grown soybean roots and seeds in the Huang-Huai region of China

Yang

et al. 2018

PeerJ

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Plants depend on beneficial interactions between roots and fungal endophytes for growth, disease suppression, and stress tolerance. In this study, we characterized the endophytic fungal communities associated with the roots and corresponding seeds of soybeans grown in the Huang-Huai region of China. For the roots, we identified 105 and 50 genera by culture-independent and culture-dependent (CD) methods, respectively, and isolated 136 fungal strains (20 genera) from the CD samples. Compared with the 52 soybean endophytic fungal genera reported in other countries, 28 of the genera we found were reported, and 90 were newly discovered. Even though Fusarium was the most abundant genus of fungal endophyte in every sample, soybean root samples from three cities exhibited diverse endophytic fungal communities, and the results between samples of roots and seeds were also significantly different. Together, we identified the major endophytic fungal genera in soybean roots and seeds, and revealed that the diversity of soybean endophytic fungal communities was influenced by geographical effects and tissues. The results will facilitate a better understanding of soybean–endophytic fungi interaction systems and will assist in the screening and utilization of beneficial microorganisms to promote healthy of plants such as soybean.

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Section: Discussionmentioning

confidence: 99%

Endophytic fungal communities associated with field-grown soybean roots and seeds in the Huang-Huai region of China

Yang

et al. 2018

PeerJ

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“…in South African nurseries (Crous et al 1991), root rot on Myrtus communis in Tunisia , and leaf blight on Buxus sempervirens in Iran (Mirabolfathy et al 2013). In addition, members of the genus Calonectria are responsible for red crown rot of Glycine max (soybean) in Japan (Yamamoto et al 2017), fruit rot of Nephelium lappaceum (rambutan) in Puerto Rico (Serrato-Diaz et al 2013) and root rot of Arbutus unedo (strawberry) in Italy ). As an important fast-growing tree species, Eucalyptus plays a significant role in the global pulpwood supply.…”

Section: Introductionmentioning

confidence: 99%

Two novel species of Calonectria isolated from soil in a natural forest in China

Liu¹,

Chen²

2017

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Species of Calonectria include important pathogens of numerous agronomic and forestry crops worldwide, and they are commonly distributed in soils of tropical and subtropical regions of the world. Previous research results indicated that species diversity of Calonectria in China is relatively high. Most Calonectria spp. reported and described from China were obtained from diseased Eucalyptus tissues or soils in Eucalyptus plantations established in tropical and subtropical areas in southern China. Recently, a number of Calonectria isolates were isolated from soils in a natural forest in the temperate region of central China. These isolates were identified by DNA sequence comparisons for the translation elongation factor 1-alpha (tef1), histone H3 (his3), calmodulin (cmdA) and β-tubulin (tub2) gene regions, combined with morphological characteristics. Two novel species of Calonectria were identified and described, and are named here as Calonectria lichi and Ca. montana, which reside in the Prolate Group and Sphaero-Naviculate Group, respectively. This study revealed that more species of Calonectria may occur in natural forests in central China than previously suspected.

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“…We found many fungal genera/species in healthy soybean roots that are well-known pathogen species of soybean and/or other plants such as wheat. For example, Fusarium, Macrophomina, Rhizoctonia, and Alternaria cause root rot or foliar and stem blight in soybeans (Lu et al 2015a;Lu et al 2015b;Ramos et al 2016;Yamamoto et al 2017). Our preliminary pathogenicity assays for some of these isolates showed that many of them may be truly asymptomatic in soybean seedlings, while some were able to cause disease symptoms, indicating that they may be latent pathogens that cause disease under stress or at a later time during plant growth.…”

Section: Discussionmentioning

confidence: 80%

Peer Review #1 of "Endophytic fungal communities associated with field-grown soybean roots and seeds in the Huang-Huai region of China (v0.1)"

2018

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Plants depend on beneficial interactions between roots and fungal endophytes for growth, disease suppression, and stress tolerance. In this study, we characterized the endophytic fungal communities associated with the roots and corresponding seeds of soybeans grown in the Huang-Huai region of China. For the roots, we identified 105 and 50 genera by culture-independent and culture-dependent methods, respectively, and isolated 136 fungal strains (20 genera) from the culture-dependent samples. Compared with the 52 soybean endophytic fungal genera reported in other countries, 28 of the genera we found were reported, and 90 were newly discovered. Even though Fusarium was the most abundant genus of fungal endophyte in every sample, soybean root samples from three cities exhibited diverse endophytic fungal communities, and the results between samples of roots and seeds were also significantly different. Together, we identified the major endophytic fungal genera in soybean roots and seeds, and revealed that the diversity of soybean endophytic fungal communities was influenced by geographical effects and tissues. The results will facilitate a better understanding of soybean-endophytic fungi interaction systems and will assist in the screening and utilization of beneficial microorganisms to promote healthy of plants such as soybean.

show abstract

Histopathology of red crown rot of soybean

Cited by 12 publications

References 13 publications

Endophytic fungal communities associated with field-grown soybean roots and seeds in the Huang-Huai region of China

Endophytic fungal communities associated with field-grown soybean roots and seeds in the Huang-Huai region of China

Two novel species of Calonectria isolated from soil in a natural forest in China

Peer Review #1 of "Endophytic fungal communities associated with field-grown soybean roots and seeds in the Huang-Huai region of China (v0.1)"

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