Identification and Characterization Analysis on a Megalocytivirus Isolated From Diseased Marbled Sleepy Goby, Oxyeleotris Marmoratus

Wang, Qing; WeiWei, Zeng; Chun, Liu; Li, Kaibin; OuQin, Chang; JiaXiong, Pan; Cun-bin, Shi; ShuQin, Wu

doi:10.3724/sp.j.1035.2010.01150

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…These also explain that the mycorrhizal networks in our study tend to allocate more biomass and nutrients to E. adenophorum in order to obtaining a greater competitive advantage for that species than A. annua under the Cu treatment in karst soil (Figs 2 and 6). The root dry weight and root N and P of both species in the Cu treatment were lower than in Su, which may be due to competitive inhibition caused by different plant species competing for shared resources [63].…”

Section: Plos Onementioning

confidence: 85%

An invasive plant experiences greater benefits of root morphology from enhancing nutrient competition associated with arbuscular mycorrhizae in karst soil than a native plant

Xia

Wang

et al. 2020

PLoS ONE

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The Eupatorium adenophorum have widespread invaded the karst ecosystem of southwest China and threatened the regional native community stability. Arbuscular mycorrhizae (AM) plays an important role in promoting growth for host plants via root external mycelia. However, whether AM regulates plant root traits underlying competition between invasive and native species via mycorrhizal networks in karst habitats, remains unclear. An experiment was conducted in a microcosm composed of two planting compartments flanking a competition compartment. The invasive E. adenophorum and native Artemisia annua were each placed in one of the two planting compartments with or without Glomus etunicatum fungus. The nutrient access treatments included the competitive utilization (Cu), single utilization (Su) and non-utilization (Nu) by using different nylon meshes allowed or prevented mycelium passing to acquire nutrients from the competition compartment. Root traits and nutrients of the two species were analyzed. The results showed that AM fungi had differential effects on root traits and nutrients of E. adenophorum and A. annua seedlings, which increased dry weight, length, surface area, volume, tips and branching points in roots, specific root length and volume, root nitrogen (N) and phosphorus (P) contents under Cu, Su and Nu treatments. AM fungus was also associated with decreases in the average diameter for both species. Under the Cu treatment, E. adenophorum had significantly greater length, surface area, volume, tips and branching points of roots, specific root traits, and root N and P than A. annua. AM fungi changed root phenotypes and nutrient uptake for both invasive and native plant species via interconnected mycorrhizal networks. Overall, our results suggest that through mycorrhizal networks, the invasive plant experiences greater benefits than the native plant in the nutrient competition, which fosters root morphological developments in karst soil.

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Section: Plos Onementioning

confidence: 85%

An invasive plant experiences greater benefits of root morphology from enhancing nutrient competition associated with arbuscular mycorrhizae in karst soil than a native plant

Xia

Wang

et al. 2020

PLoS ONE

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“…This area has a temperate desert climate. The multiyear average temperature and precipitation are 7.6 C and 116 mm, respectively (Ma et al, 2010). The main types of sites are mobile dunes, semifixed dunes, fixed dunes, and flat land between hills, wind-eroded residual hillsides, and piedmont alluvial fans.…”

Section: Study Areamentioning

confidence: 99%

“…The soil is characterized by a rough texture, small stones, thin consistency, and poor water retention capacity. The distribution pattern of the H. ammodendron population at the edge of the desert oasis in Minqin County is generally aggregated (Ma et al, 2010;Zhang, Liu, Zhang, & Sun, 2016). H. ammodendron forms large deciduous shrubs or small trees and is a Second-Class National Protected Plant (Yu et al, 2012).…”

Section: Study Areamentioning

confidence: 99%

“…H. ammodendron is distributed in Central Asia, western Inner Mongolia, Gansu, and the Qinghai and Xinjiang Desert areas in China (Ma et al, 2010;Xu, Li, & Xu, 2011;Yu et al, 2012).…”

Section: Study Areamentioning

confidence: 99%

“…Haloxylon ammodendron is a precious plant resource in the desert area of northwest China (Ma et al, 2010). Previous studies of H. ammodendron have focused on the effects of spatial heterogeneity in soil nutrients, soil water, and other factors.…”

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confidence: 99%

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Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in a desert–oasis ecotone

Deng

Huang

et al. 2020

Land Degrad Dev

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Vegetation restoration has been proposed as an effective measure for rehabilitating degraded land and slowing desertification in arid regions. However, the spatial variation in soil quality and plant diversity following vegetation restoration remains unclear. This study was designed to explore soil nutrient dynamics and how soil nutrients affect plant diversity and spatial heterogeneity after shrub restoration. We assessed the effect of Haloxylon ammodendron (C.A.Mey.) Bunge (which has been planted over 30 years) on the soil nutrients and plant diversity in a desert–oasis ecotone in Minqin County, Gansu, China, using geostatistics, beta diversity and rarefaction analyses, and Hill number extrapolation. Soil nutrients, including soil organic matter, total nitrogen, and alkali nitrogen, increased significantly after H. ammodendron planting. Species richness gradually increased from 1–5 years to 10–20 years after H. ammodendron was planted but then decreased at 20–30 years. The largest differences in plant composition were observed at 15 and 20 years. Plant diversity increased in the whole 30 years after shrub planting, increasing in the first 25 years and then decreasing at 26–30 year stage. The maximum coefficient of determination for the spatial heterogeneity model fit was 0.84 (25 years). The spatial heterogeneity in vegetation decreased with increasing soil available K content at 1–10 years. Our results suggest that planting shrubs can improve soil conditions and plant species diversity in desert–oasis ecotones and soil nutrients have a strong influence on plant diversity patterns and spatial heterogeneity following vegetation restoration.

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Dispersal differences and determined factors of invasive alien plants along roadside in three habitats, Encheng national nature reserve, China

Dai

Guo

Li³

et al. 2023

Preprint

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Invasive alien plants cause major losses to native biodiversity. Nature reserves are crucial in resisting invasion, but resistance varies by habitats. To explore the variations and factors that determine invasive alien plant dispersal patterns in different habitats, we investigated abandoned land, eucalyptus plantations, and natural secondary forests in Encheng National Nature Reserve, Guangxi. Our results showed a significant decrease in invasive alien plants with increasing distance from roads in secondary forest, while there was no significant trend in the two other habitats. No significant trends were observed in the distribution of invasive alien plants within the soil seed bank in the three habitats perpendicular to the road direction. Invasive alien plant composition varied with the distance from the road and was found to be similar both aboveground and in the soil seed bank. Factors influencing invasive species composition at different road edges differed by habitats, abandoned land was affected by average human flow, average traffic flow, and distance to the village, eucalyptus plantations by pH, average human flow, native herb richness of soil seed bank, and road width, and secondary forest by road width, road grade, and native herb richness and density. Our results indicated that the secondary forest resists plant invasion better than eucalyptus plantations and abandoned land, moreover, native herbs play important roles in resisting invasive species in both secondary forest and eucalyptus plantations. To target invasive alien plants in nature reserves, prioritize the abandoned land and plantation forests based on our findings.

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Identification and Characterization Analysis on a Megalocytivirus Isolated From Diseased Marbled Sleepy Goby, Oxyeleotris Marmoratus

Cited by 7 publications

References 12 publications

An invasive plant experiences greater benefits of root morphology from enhancing nutrient competition associated with arbuscular mycorrhizae in karst soil than a native plant

An invasive plant experiences greater benefits of root morphology from enhancing nutrient competition associated with arbuscular mycorrhizae in karst soil than a native plant

Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in a desert–oasis ecotone

Dispersal differences and determined factors of invasive alien plants along roadside in three habitats, Encheng national nature reserve, China

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