No evidence of greater biomass allocation to stolons at moderate resource levels in a floating plant

Si, Chao; Xue, Wei; Lin, Jing; Zhang, Jianfeng; Hong, Mengmeng; Wang, Yiyue; Zhang, Liu-Fang; Yu, Fei‐Hai

doi:10.1007/s10452-020-09751-3

Cited by 11 publications

(15 citation statements)

References 41 publications

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“…Our results showed an overall hump-shaped growth pattern of S . polyrhiza in response to increasing nutrient availability, in agreement with many theoretic and experimental studies [ 41 , 43 – 46 ]. The initial increase of the biomass was likely due to the very low water nutrient supply as plant production is generally positively correlated with the demand for nutrients [ 26 , 41 , 47 ].…”

Section: Discussionsupporting

confidence: 88%

“…In contrast, a U-shaped pattern was observed in root length and root mass in response to increasing nutrient levels. This is likely because, at lower level of nutrient concentrations, plants may need to invest more to roots in order to uptake more nutrients [ 43 , 62 – 64 ], which could explain the greater root length and root mass at lower nutrient concentration treatments in the present study [ 65 ]. However, we also observed a greater root length and root mass at higher nutrient concentrations.…”

Section: Discussionmentioning

confidence: 99%

“…This is likely because at higher levels of nutrient concentration, plants may suffer from strong intraspecific competitions due to rapidly clonal growth. In this case, a longer and bigger root would be more beneficial for the plants to obtain resources in order to fight against their intraspecific competitors [ 11 , 43 , 64 , 66 ].…”

Section: Discussionmentioning

confidence: 99%

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Distinct responses of frond and root to increasing nutrient availability in a floating clonal plant

Jin

Zhang

et al. 2021

PLoS ONE

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Current knowledge on responses of aquatic clonal plants to resource availability is largely based on studies manipulating limited resource levels, which may have failed to capture the “big picture” for aquatic clonal plants in response to resource availability. In a greenhouse experiment, we grew the floating clonal plant Spirodela polyrhiza under ten nutrient levels (i.e., 1/64×, 1/32×, 1/16×, 1/8×, 1/4×, 1/2×, 1×, 2×, 4× and 8×full-strength Hoagland solution) and examined their responses in terms of clonal growth, morphology and biomass allocations. The responses of total biomass and number of ramets to nutrient availability were unimodal. A similar pattern was found for frond mass, frond length and frond width, even though area per frond and specific frond area fluctuated greatly in response to nutrient availability. In contrast, the responses of root mass and root length to nutrient availability were U-shaped. Moreover, S. polyrhiza invested more to roots under lower nutrient concentrations. These results suggest that nutrient availability may have distinct influences on roots and fronds of the aquatic clonal plant S. polyrhiza, resulting in a great influence on the whole S. polyrhiza population.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

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Distinct responses of frond and root to increasing nutrient availability in a floating clonal plant

Jin

Zhang

et al. 2021

PLoS ONE

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“…Previous studies have indicated that limited light could reduce the uptake of nutrients by plants, and alter plant response to increased nutrient availability [ 33 – 35 ]. For instance, the responses of biomass, ramet number and mean stolon internode length of Salvinia natans to nutrient availability were unimodal under the high light condition, but bimodal under the low light condition [ 26 ]. And the response of biomass allocation to nutrients also showed a significant difference between the two light conditions [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Cadmium stress interacts with nutrient availability and light condition to affect the growth of Hydrocotyle vulgaris

et al. 2023

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Heavy metal pollution is becoming a serious problem in wetland and often co-occurs with nutrient availability and light conditions variation. We hypothesized that nutrient availability and light condition can affect the growth of wetland plants under heavy metal stress. To test this hypothesis, single ramets of a common, clonal wetland plant Hydrocotyle vulgaris were grown for four weeks at three levels of cadmium with three levels of nutrient availability under 30% or 100% light conditions. High level of nutrient availability and high light condition overall promoted growth of H. vulgaris under Cd stress. Under the two light conditions, responses of H. vulgaris to Cd treatments differed among three nutrient levels. Under 30% light condition, 2 mg L-1 Cd2+ treatment decreased total mass at the low nutrient level and decreased ramet number at the medium nutrient level; 0.5 and 2 mg L-1 Cd2+ treatments decreased leaf mass ratio at the low and the medium nutrient levels. Under 100% light condition, 2 mg L-1 Cd2+ treatments significantly decreased total mass at the high level of nutrients; 2 mg L-1 Cd2+ treatment decreased ramet number at the medium and the high nutrient levels and decreased leaf mass ratio at the medium nutrient levels. Our results suggested that Cd stress can interact with nutrient availability and light condition to affect the performance of wetland plants such as H. vulgaris.

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“…Plasticity of stolon and rhizome internode (hereafter also referred to as "internodes" for brevity) length allows clonal plants to have a higher opportunity to encounter resource-rich patches, and consequently a greater ability to adapt to heterogeneous environments (de Kroon and Hutchings 1995;Gao et al 2012;Roiloa et al 2014;van Kleunen and Fischer 2001;Xue et al 2018c;Ye et al 2006). In general, clonal plants would produce shorter internodes to utilize adequate resources in favorable habitats, while longer ones can help to "escape" from unfavorable patches (Benedek et al 2017;de Kroon and Schieving 1990;Dong 1993;Si et al 2020;Oborny and Cain 1997;Ye et al 2006). This morphological response in clonal plants has been extensively linked to external environmental factors such as nutrient, water and light availabilities (Dong 1993;Hagiwara et al 2010;Wijesinghe et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Contrasting Effects of Plant-Soil Feedbacks on Growth and Morphology of Two Clonal Plants

Xue

Huang

Sheng

et al. 2021

Preprint

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AimSoil abiotic and biotic conditions are often spatially variable, challenging plants with a heterogeneous environment consisting of favorable and unfavorable patches of soil. Many stoloniferous clonal plants can escape from unfavorable patches by elongating stolon internodes, but aggregate in favorable ones through shortening stolon internodes. However, whether these plants can use their stolons to respond to plant-soil feedbacks (PSFs) is largely unknown. MethodsIn the conditioning phase, we grew either Hydrocotyle vulgaris or Glechoma longituba clonal plants separately in mesocosms to condition bulk soil. In the feedback phase, we grew connected mother and daughter ramets of each species in soil inoculated with the unsterilized or sterilized soil conditioned by conspecifics. We grew the plants for 12 weeks and measured the growth of the mother and daughter ramets separately. ResultsThe daughter ramets of H. vulgaris produced more biomass but shorter stolon internodes when grown in soil with sterilized inocula than with unsterilized inocula. However, no difference was found between the daughter ramets of G. longituba grown in soil with unsterilized and sterilized inocula. For both species, no significant difference was found between the mother ramet or between the daughter ramets when the mother ramet was grown in soil with sterilized and unsterilized inocula. ConclusionsThe daughter ramets rather than the mother ramet of H. vulgaris experienced negative biotic PSFs. However, PSF had no effects on the daughter or mother ramet of G. longituba. Moreover, physiological integration or plasticity in stolon internode lengths cannot help H. vulgaris alleviate the negative PSFs.

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No evidence of greater biomass allocation to stolons at moderate resource levels in a floating plant

Cited by 11 publications

References 41 publications

Distinct responses of frond and root to increasing nutrient availability in a floating clonal plant

Distinct responses of frond and root to increasing nutrient availability in a floating clonal plant

Cadmium stress interacts with nutrient availability and light condition to affect the growth of Hydrocotyle vulgaris

Contrasting Effects of Plant-Soil Feedbacks on Growth and Morphology of Two Clonal Plants

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