Reproductive strategies involving biomass allocation, reproductive phenology and seed production in two Asteraceae herbs growing in karst soil varying in depth and water availability

Suhui, Li; Liu, Junting; Li, Jinming; Deng, Yulu; Chen, Jinyi; Wang, Jiamin; Song, Haiyan; Zhang, Jing; Tao, Jianping; Liu, Jinchun

doi:10.1007/s11258-021-01141-5

Cited by 8 publications

(6 citation statements)

References 26 publications

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“…Bidens pilosa L. is an annual herb of the Asteraceae and is widely distributed in the karst areas of southwest China ( Li et al., 2021 ). B. pilosa is the typical pioneer succession species of karst vegetation documented by our field surveys, and our previous found that it has a high rate of mycorrhizal colonization ( He et al., 2019 ; Han et al., 2020 ; Li et al., 2022 ; Sun et al., 2022 ).…”

Section: Methodsmentioning

confidence: 99%

Effects of AMF on plant nutrition and growth depend on substrate gravel content and patchiness in the karst species Bidens pilosa L

Shen

et al. 2022

Front. Plant Sci.

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Karst ecosystems represent a typical heterogeneous habitat, and it is ubiquitous with varying interactive patches of rock and soil associated with differential weathering patterns of carbonate rocks. Arbuscular mycorrhizae fungi (AMF) play an important role in regulating plant growth and nutrition in heterogeneous karst habitats. However, it remains unclear how AMF affects the growth and nutrition of plants in heterogeneous karst soil with varying patches and weathering gravel. A heterogeneous experiment with Bidens pilosa L. was conducted in a grid microcosm through patching karst soil with different gravel contents. The experimental treatments included the AMF treatments inoculated with (M+) or without (M-) fungus Glomus etunicatum; the substrate patchiness treatments involved different sizes of the homogeneous patch (Homo), the heterogeneous large patch (Hetl), and the heterogeneous small patch (Hets); the substrate gravel treatments in the inner patch involved the free gravel (FG), the low gravel (LG) 20% in 80% soil, and the high gravel (HG) 40% in 60% soil. Plant traits related to growth and nutrients were analyzed by comparing substrate gravel content and patch size. The results showed that AMF was more beneficial in increasing the aboveground biomass of B. pilosa under the LG and HG substrates with a higher root mycorrhizal colonization rate than under the FG substrate with a lower root mycorrhizal colonization rate. AMF enhanced higher growth and nutrients for B. pilosa under the LG and HG substrates than under the FG substrate and under the Hets than under the Hetl. Moreover, AMF alleviated the limited supply of N for B. pilosa under all heterogeneous treatments. Furthermore, the response ratio LnRR of B. pilosa presented that the substrate gravel promoted the highest growth, N and P absorption than the substrate patchiness with M+ treatment, and the gravel content had a more effect on plant growth and nutrition as compared to the patch size. Overall, this study suggests that plant growth and nutrition regulated by AMF mainly depend on the substrate gravel content rather than the spatial patchiness in the heterogeneous karst habitat.

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Section: Methodsmentioning

confidence: 99%

Effects of AMF on plant nutrition and growth depend on substrate gravel content and patchiness in the karst species Bidens pilosa L

Shen

et al. 2022

Front. Plant Sci.

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“…Zhang et al (2015) observed that grassland plant species in the primary succession were mainly limited by N in karst habitats of Southwest China. B. pilosa is a pioneer herb widely distributed in karst areas (Li et al, 2021), which may explain the N deficiency observed in its growth. Interestingly, AM fungi markedly increased the N/P ratio of B. pilosa (Table 2, Figure 7), indicating that mycorrhizal colonization can effectively alleviate the N limitation of plants.…”

Section: Discussionmentioning

confidence: 99%

“…The optimal partitioning theory holds that when plants grow in different environments, they can allocate more biomass or nutrients to the most favorable growth positions, such as roots, stems, or leaves, by integrating the activities of the whole level in plants to achieve their optimal growth (Coleman, 1999; Rugemalila et al, 2020; Xia, He, et al, 2020). Therefore, karst plants frequently exhibit adaptive responses in terms of the morphology and physiology of different organs, enhancing their fitness for spatial heterogeneity habitats (Li et al, 2021). Many studies have documented that individual plants' growth and resource allocation respond differently to the spatial heterogeneity of soil patches (Liu et al, 2017; Roiloa & Hutchings, 2013; Shen et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…This interlacing and mosaic distribution of soil and stone gives rise to the high spatial heterogeneity of karst habitats (Chen et al, 2013). Therefore, plants surviving in karst habitats suffer from spatially heterogeneous microhabitats composed of soil patches of different sizes (Li et al, 2021). The optimal partitioning theory holds that when plants grow in different environments, they can allocate more biomass or nutrients to the most favorable growth positions, such as roots, stems, or leaves, by integrating the activities of the whole level in plants to achieve their optimal growth (Coleman, 1999; Rugemalila et al, 2020; Xia, He, et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Soil patch heterogeneity improves plant productivity and nutrients regulated by arbuscular mycorrhizal fungi

Xia,

Guo,

et al. 2023

Land Degrad Dev

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The interlacing and mosaic distribution of karst soil and rock result in the high spatial heterogeneity of the natural karst habitat. Karst plants are suffered from spatially heterogeneous microhabitats with different‐sized patches. Arbuscular mycorrhizal (AM) fungi are crucial in regulating plant productivity and nutrients in heterogeneous karst environments. However, how spatial patch heterogeneity influences plant productivity and nutrient utilization by AM fungi regulation in karst soil remains unclear. A simulated heterogeneity experiment regarding soil grid patches was conducted by planting Bidens pilosa into a microcosm of a square device. Experimental treatments included the mycorrhizal fungus treatments inoculation with (M+) or non‐inoculation with (M−) Glomus etunicatum fungus, and the spatial heterogeneity treatments involved homogeneous patches (HO), heterogeneity‐small patches (HS), and heterogeneity‐large patches (HL). The growth and nutritional traits of plants were analyzed. The results showed that AM fungus promoted the productivity and nutrient uptake of B. pilosa by substantial increases in biomass, nitrogen (N) accumulation, phosphorus (P) accumulation, and N/P ratio. The spatial heterogeneity promoted the biomass and N and P accumulations of B. pilosa when inoculating with AM fungus. The mycorrhizal colonization rate and hyphae length were greater in HS than in HO and HL under the M+ treatment, with a greater response ratio of biomass, N and P under HS conditions. These indicated that the heterogeneous small patches had a greater promotion of the biomass production and nutrients of B. pilosa with inoculation of AM fungus because extensive fungal hyphae can acquire soil resources in more distant patches outside the root zone with more economical metabolic costs compared to roots. We thus conclude that patch heterogeneity contributes to plant productivity and nutrient utilization regulated by AM fungi in karst soil, and the broader nutrient capture induced by extraradical hyphae of AM fungi may be an adaptive mechanism for karst plants to cope with heterogeneous environmental conditions.

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“…Plants allocate carbon and nutrients to their aboveground and belowground organs reasonably to meet their normal growth and reproduction (Cheplick, 2020;Irving and Mori, 2021). In general, the root-shoot ratio (root biomass to aboveground biomass) and reproductive allocation (reproductive organ biomass to total biomass) can be used to determine the resource allocation strategies of plants for vegetative growth and reproduction, which are also key parameters reflecting plant survival strategies (Liu and Li, 2020;Li et al, 2021;Zhou et al, 2021). The resource allocation strategies of plants may change with resource supply changes in environment, which will lead to changes in root-shoot ratio and reproductive investment for plants to adapt to variable conditions (Zhang et al, 2021;Bebre et al, 2022;Meng et al, 2022;Zhou et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

A response of biomass and nutrient allocation to the combined effects of soil nutrient, arbuscular mycorrhizal, and root-knot nematode in cherry tomato

Wang

Chen²,

Yan³

et al. 2023

Front. Ecol. Evol.

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IntroductionThe biomass and nutrient allocation strategies in plants are fundamental for predicting carbon storage and mineral and nutrient cycles in terrestrial ecosystems. However, our knowledge regarding the effects of multiple environmental factors on biomass and nutrient allocation remains limited.MethodsHere we manipulated soil composition (three levels), arbuscular mycorrhizal fungi inoculation (AMF, five levels), and root-knot nematode inoculation (RKN, two levels) using random block design to reveal the effects of these factors on biomass and nutrient allocation strategies of cherry tomato.Results and DiscussionOur results showed that biomass and nutrient allocation were affected by soil composition, AMF and RKN individually or interactively. The biomass and nutrient allocation in cherry tomato shows different adaptation strategies responded to the joint action of three factors. The reduction of soil nutrients increased belowground biomass allocation, and aboveground nitrogen and phosphorus concentration. AMF colonization increased aboveground biomass allocation and reproductive investment and promoted aboveground nitrogen and phosphorus inputs. Cherry tomato can mitigate the stress of RKN infection by investing more biomass and nutrients into belowground organs. Our study showed that plants can adjust their survival strategies by changing biomass and nutrient allocation to adapt to variation in soil abiotic and biotic factors. These findings contribute to our understanding of the adaptive processes of plant biomass and nutrient allocation strategies under multiple environmental factors.

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Reproductive strategies involving biomass allocation, reproductive phenology and seed production in two Asteraceae herbs growing in karst soil varying in depth and water availability

Cited by 8 publications

References 26 publications

Effects of AMF on plant nutrition and growth depend on substrate gravel content and patchiness in the karst species Bidens pilosa L

Effects of AMF on plant nutrition and growth depend on substrate gravel content and patchiness in the karst species Bidens pilosa L

Soil patch heterogeneity improves plant productivity and nutrients regulated by arbuscular mycorrhizal fungi

A response of biomass and nutrient allocation to the combined effects of soil nutrient, arbuscular mycorrhizal, and root-knot nematode in cherry tomato

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