Root morphology, histology and chemistry of nine fern species (pteridophyta) in a temperate forest

Dong, Xueyun; Wang, Hongfeng; Gu, Jiacun; Wang, Yan; Wang, Zhengquan

doi:10.1007/s11104-015-2484-7

Cited by 25 publications

(28 citation statements)

References 57 publications

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“…In R. stylosa, the thickening of the cortex was linked to higher lignin content in high BD soil. This is consistent with terrestrial plant species, where the thickening of cortical cells and associated lignification enhance tissue density [41] and increase the mechanical strength of the cortex [36]. Additionally, high concentrations of cellulose, which also add to the structural stability of the root, are characteristic of coarse roots [42,43].…”

Section: Discussionsupporting

confidence: 80%

The roots of blue carbon: responses of mangrove stilt roots to variation in soil bulk density

et al. 2019

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Mangroves harbour large soil organic carbon (C) pools. These C stocks are attributed to the production and slow decomposition of the below-ground biomass. Novel in-growth containers were used to assess the effect of soil bulk density (BD: 0.4, 0.8 and 1.2 g cm −3 ) on morphological, anatomical and chemical traits of the below-ground fraction of aerial roots of the mangrove Rhizophora stylosa . Dense soils increased total root biomass and primary root diameter, while the primary root length decreased. Furthermore, high soil BD reduced aerenchyma lacunae and led to the formation of structural features such as fibrous strands. These morphological and anatomical changes were not reflected in tissue chemistry, with lignin levels averaging 17.0 ± 0.6%, although roots grown in high BD had higher nitrogen levels. This likely affects decomposition rates. Thus, variation in soil BD has major implications for C sequestration in Rhizophora- dominated mangroves.

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Section: Discussionsupporting

confidence: 80%

The roots of blue carbon: responses of mangrove stilt roots to variation in soil bulk density

et al. 2019

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“…With respect to forest succession and associated species, fern-rich early-successional coniferous forests (plantations) are lower in understorey fine root biomass and proliferation than mixed and broad-leaved forests dominated by angiosperm understorey species. However, surprisingly, the fine roots of the understorey in early-successional coniferous forest were much finer, had a greater number of root tips and lower carbon investment than those in later-successional stages, which indicates a stronger foraging function of fern roots than previously surmised (Dong et al 2015). The differences in root morphology and nutrient uptake strategy of these phylogenetically distinct plants in the context of resources in different forest soil horizons warrant further investigation.…”

Section: Discussionmentioning

confidence: 84%

“…Ferns have a different mode of root system construction than that of angiosperms (Hou and Blancaflor 2010), often with relatively short and less developed root systems. In particular, fern roots differ in the number of root orders and have lower specific root length than angiosperms in general (Dong et al 2015). Therefore, despite their substantial aboveground understorey cover, we expect fern-rich coniferous forest to be relatively low in fine root biomass and proliferation compared with latersuccessional mixed or broad-leaved forest, the latter being dominated by angiosperms with more advanced root systems.…”

Section: Introductionmentioning

confidence: 93%

Understorey fine root mass and morphology in the litter and upper soil layers of three Chinese subtropical forests

Wang

et al. 2016

Plant Soil

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Aims To quantitatively assess how fine root biomass and necromass of understorey species vary in the litter and upper mineral soil layers. Methods The method combines in situ sampling of the litter layer with sequential coring during the root growth stage in three Chinese subtropical forests: coniferous forest, coniferous and broad-leaved mixed forest, and evergreen broad-leaved forest. Results Approximately 67-74 % of the total fine root mass occurred in the layer of decomposing litter (L2) and that of the top 7.5 cm of the soil (M1). Layer L2 was the preferential horizon for fine root growth, and the thickness of this horizon strongly affected the vertical fine root pattern. In addition, the fine root mass was positively correlated with total N concentration in layers L2 and M1. For all three forest types, most fine roots had diameters <1 mm and clear decreasing trends in specific (mass-based) root length and tip number were observed from the litter layer to the soil and the N concentration of live roots also decreased with depth. Conclusions Understorey roots show a soil exploitation pattern through which absorptive fine roots are arranged to maximize nutrient acquisition from the litter and upper soil layers and to avoid belowground competition with trees, especially in species-rich forests.

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“…7a–e). Similarly, C:N decreases with increasing root order 56 . The C:N ratio increases as root order increases, and within each root order is highest with N treatment 10 (Fig.…”

Section: Discussionmentioning

confidence: 88%

“…Many studies 10, 56 have shown that root N concentration decreases with increasing root order (Fig. 7a–e).…”

Section: Discussionmentioning

confidence: 89%

Influence of biochar and nitrogen on fine root morphology, physiology, and chemistry of Acer mono

Razaq

Salahuddin

Shen

et al. 2017

Sci Rep

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Fine roots play an important role in the overall functions of individual plants. Previous studies showed that fertilization and available soil resources have a notably profound effect on fine root, but there is lack of study centered on how fine root morphology, physiology, and chemistry respond to biochar with N additions. Different levels of biochar (0, 10, 15, and 20 g) and N (0, 2, 4 and 6 g) were applied to Acer mono seedling plants in a field nursery. The root system morphology and root chemistry and physiology were evaluated in line with root length, root diameter, SRL, N and N: C and root respiration. Biochar and N significantly affected root morphology, chemistry and root respiration. Morphological, chemical and physiological parameters were found to be at their maximum with 20 g biochar and 6 g N; however, no significant effect was noted on fourth- and fifth-order roots. Furthermore, a significant increase in root respiration was recognized with the increase in root tissue N concentration and the negative relationship of root respiration with higher branch order. Thus, overall, study parameters indicate that biochar and nitrogen positively influence the Acer mono fine root, and therefore should be used to improve fine root health.

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Root morphology, histology and chemistry of nine fern species (pteridophyta) in a temperate forest

Cited by 25 publications

References 57 publications

The roots of blue carbon: responses of mangrove stilt roots to variation in soil bulk density

The roots of blue carbon: responses of mangrove stilt roots to variation in soil bulk density

Understorey fine root mass and morphology in the litter and upper soil layers of three Chinese subtropical forests

Influence of biochar and nitrogen on fine root morphology, physiology, and chemistry of Acer mono

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