A Survey of Endophytic Fungi in Some Native Forage Grasses of Northwestern China

Li, Baojun; Zheng, Xiaofeng; Sun, Shouqin

doi:10.1007/978-1-4899-0271-9_11

Cited by 6 publications

(4 citation statements)

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“…Neotyphodium endophytes have been reported in a number of grass species in north-western China (Bruehl et al, 1994;Nan, 1996a, b;Li et al, 1997;Nan and Li, 2001;Li et al, 2004). Two endophytes, Neotyphodium inebrians and Neotyphodium gansuense, have been found in seeds, leaf sheaths and peduncles of drunken horse grass (Achnatherum inebrians), a perennial bunchgrass, which is so named because it is associated with narcosis of horses grazing on pasture containing the grass (Bruehl et al, 1994;Li et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…A large portion of northern and western China's agriculture is centred on grazing of natural pastures and virtually nothing is known of the impact of endophytes on livestock production in these remote regions (Li et al, 1997). Although surveys of endophytes in northwestern China have been carried out, little is known about the incidence of infection of Neotyphodium and Epichloë endophytes in many grass species that are found in the diverse grassland ecosystems that are present in the different climatic areas in this vast region.…”

Section: Introductionmentioning

confidence: 99%

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Occurrence of endophytes in grasses native to northern China

Wei

Gao

et al. 2006

Grass and Forage Science

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A survey of grass species associated with Neotyphodium and Epichloë fungal endophytes was made in the permanent grasslands of northern China. A total of 41 grass species, 56 sites and 172 local populations were examined to reveal endophytic infection of native grasses. Twenty-five of the forty-one species of grasses (proportionately 0AE61) were infected by endophytes: twenty-two species had a mean infection rate of 0AE01-0AE50 and only three species had a mean infection >0AE50. Of the 172 local populations examined, however, proportionately 0AE72 were not infected, 0AE181 had an infection rate of 0AE01-0AE50 and 0AE099 had an infection rate of 0AE51-1AE00. Two genera of grasses, Cleistogenes and Koeleria, as well as twenty plant species, were previously unknown endophytic hosts in China. High infection rates (0AE86-1AE00) of plants of Achnatherum sibiricum were detected at all eleven sites studied. Other grasses in which high infection rates were found were Agropyron mongolicum, Roegneria turczaninovii, Agropyron elongate, Poa palustris and Poa angustifolia. It was concluded that endophytes are found widely in natural grass populations and that endophyte-grass interactions may have effects on ecosystems and livestock in the grasslands of northern China.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Occurrence of endophytes in grasses native to northern China

Wei

Gao

et al. 2006

Grass and Forage Science

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“…Incidence of toxicity is minor for animals indigenous to the region as they avoid grazing this grass, with intoxication generally occurring in animals recently imported from regions free of A. inebrians. The major problem for livestock farming is that A. inebrians is increasing in dominance due to overgrazing and other environmental factors, restricting the development of livestock farming in some regions (Li et al 1997;Zhang et al 2012a). Some of the animal toxic effects of endophyte-infected A. inebrians in China are similar to those seen in animals grazing the closely related grass species A. robustum (syn.…”

Section: Toxicity Beyond Ryegrass and Tall Fescuementioning

confidence: 99%

Epichloë Fungal Endophytes for Grassland Ecosystems

Hume

Ryan

Gibert

et al. 2016

Sustainable Agriculture Reviews

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The Epichloë fungal endophytes that inhabit grasses have potentially large-scale consequences for macro-and micro-organisms and food chains in agriculture. Over 40 years of study on the benefits of symbiotic Epichloë fungal endophytes for host grasses, investigations have focused on the major agricultural species, tall fescue and perennial ryegrass. However, many other grass species remain to be evaluated for the effects of Epichloë endophytes. Animal toxicity due to accumulation of nitrogenous compounds, e.g. endophyte-dervived alkaloids, particularly in areas and periods under abiotic stress, still prevent widespread application of endophyte-infected grasses in agroecosystems.Here we review Epichloë endophyte-ecosystem relationships. The major points are: (1) Epichloë endophytes protect their host plants from vertebrate and invertebrate herbivory and allow plants to persist under water shortage, salinity, low light, mineral deficiencies and metal toxicity. Data suggests that the concentration of endophyte-derived anti-herbviore compounds increases with rising temperatures. This trend thus suggests that the strength of mutualistic interactions may increase in future climates with possible consequences for animal toxicity. (2) The benefits of endophyte infection for the host grass are context-dependent, varying with environmental conditions, grass species and cultivar, and are also highly influenced

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“…It is estimated that approximately 900 pooid grass species harbour systemic endophytes (Faeth, 2002). In northern China, 45 grass species in 15 genera have been reported to be infected by systemic endophytes (Bruehl et al, 1994;Li et al, 1997Li et al, , 2004Nan & Li, 2001;Wei et al, 2006). The study of the large majority of undescribed grass-endophyte associations may provide a diverse resource for turf-grass breeding and improvement.…”

Section: Introductionmentioning

confidence: 99%

Taxonomy, diversity and origins of symbiotic endophytes ofAchnatherum sibiricumin the Inner Mongolia Steppe of China

Zhang

Ren

Wei

et al. 2009

FEMS Microbiology Letters

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We sampled five Achnatherum sibiricum populations and documented the distribution and abundance of endophytes. In total, 438 fungal isolates were obtained. They were classified into 11 morphotypes based on growth rate and morphological characters including colonial morphology, the production of conidiogenous cells, conidial size and dimension on potato dextrose agar medium. Both tub2 and actG sequences identified only a single product in all representative isolates from three dominant morphotypes. All sequences fell in the same main clade, including Neotyphodium gansuense and Neotyphodium gansuense var. inebrians from another Achnatherum species in North China, Achnatherum inebrians, and Neotyphodium guerinii from European grasses Melica ciliate and Melica transsilvanica. Based on both morphological and phylogenetic analyses, isolates in morphotype I were described as representing a novel Neotyphodium species, Neotyphodium sibiricum sp. nov. Isolates in both morphotype II and III were identified as representing N. gansuense. Both tub2 and actG sequences suggested that N. sibiricum and N. guerinii were probably derived from a common Epichloë ancestor.

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A Survey of Endophytic Fungi in Some Native Forage Grasses of Northwestern China

Cited by 6 publications

References 1 publication

Occurrence of endophytes in grasses native to northern China

Occurrence of endophytes in grasses native to northern China

Epichloë Fungal Endophytes for Grassland Ecosystems

Taxonomy, diversity and origins of symbiotic endophytes ofAchnatherum sibiricumin the Inner Mongolia Steppe of China

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