Ecological adaptation strategies of the clonal plant Phragmites australis at the Dunhuang Yangguan wetland in the arid zone of northwest China

Qin, Huijun; Jiao, Liang; Li, Fang; Zhou, Yi

doi:10.1016/j.ecolind.2022.109109

Cited by 6 publications

(2 citation statements)

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“…This is because it is speculated that this additional resource allocation is directed towards other parts, such as rhizomes, root buds, and shoots. Such resource allocation can indicate trade-offs between biological growth and reproductive structures ( Ziska et al., 2004 ; McPeek and Wang, 2007 ; Qin et al., 2022 ). Over time, plants exposed to elevated CO 2 may undergo photosynthetic acclimation, where the initial increase in photosynthetic rate plateaus or decreases due to downregulation of Rubisco activity and other photosynthetic enzymes ( Zhang et al., 2013 ; Broughton et al., 2016 ).…”

Section: Discussionmentioning

confidence: 99%

The reduced growth due to elevated CO2 concentration hinders the sexual reproduction of mature Northern pipevine (Aristolochia contorta Bunge)

Park,

Kim

2024

Front. Plant Sci.

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The phenology has gained considerably more attention in recent times of climate change. The transition from vegetative to reproductive phases is a critical process in the life history of plants, closely tied to phenology. In an era of climate change, understanding how environmental factors affect this transition is of paramount importance. This study consisted of field surveys and a greenhouse experiment on the reproductive biology of Northern pipevine (Aristolochia contorta Bunge). During field surveys, we investigated the environmental factors and growth characteristics of mature A. contorta, with a focus on both its vegetative and reproductive phases. In its successful flowering during the reproductive phase, A. contorta grew under the conditions of 40% relative light intensity and 24% soil moisture content, and had a vertical rhizome. In the greenhouse experiments, we examined the impact of increased CO2 concentration on the growth and development of 10-year-old A. contorta, considering the effect of rhizome direction. Planted with a vertical rhizome direction, A. contorta exhibited sufficient growth for flowering under ambient CO2 concentrations. In contrast, when planted with a horizontal rhizome direction, it was noted to significantly impede successful growth and flowering under elevated CO2 concentrations. This hindered the process of flowering, highlighting the pivotal role of substantial vegetative growth in achieving successful flowering. Furthermore, we observed a higher number of underground buds and shoots under the conditions of elevated CO2 concentration and a horizontal rhizome direction instead of flowering. Elevated CO2 concentrations also exhibited diverse effects on mature A. contorta’s flower traits, resulting in smaller flower size, shorter longevity, and reduced stigma receptivity, and pollen viability. The study shed light on elevated CO2 concentrations can hinder growth, potentially obstructing sexual reproduction and diminishing genetic diversity.

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Section: Discussionmentioning

confidence: 99%

The reduced growth due to elevated CO2 concentration hinders the sexual reproduction of mature Northern pipevine (Aristolochia contorta Bunge)

Park,

Kim

2024

Front. Plant Sci.

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“…Under low moisture conditions, there were positive correlations between stem biomass and internode length, diameter, and biomass (Fig.4), indicating that longer and thicker internodes are more conducive to stem biomass accumulation. Longer and thicker internodes help plants e ciently access a wider range of resources, decrease aggregation intensity, and escape from poor environment(Martin et al 2020;Ottaviani et al 2021;Qin et al 2022). Previous studies have also found that longer and thicker below-ground rhizomes play important roles in above-ground growth of a bamboo species(Kobayashi et al 2023).…”

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confidence: 99%

Determinants and relationships of above- and below-ground plant traits in typical marsh wetlands in northern China

Liu,

Chen,

Shao

et al. 2023

Preprint

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Background and Aims Plant traits are the results of plant evolutionary and environmental drivers operating at different scales. Although the relationship between above- and below-ground traits of terrestrial plants has been advanced, little is known about above- and below-ground traits of wetland plants, their relationship and influencing factors across a large scale. Methods Species coverage, and above- and below-ground plant traits were measured in nine typical marsh wetlands of northern China. Differences in plant traits at both species- and community-level among wetlands and between low and high soil moisture conditions, correlations between above- and below-ground traits of clonal plants, and the influencing environmental factors were analyzed. Results Plant traits at both species- and community-level were significantly higher in Daihai and Qingtongxia wetlands than that in other wetlands, which was influenced by combined effects of precipitation, soil nutrients, and temperature. Plant traits at both levels were generally higher under high than low soil moisture conditions. At the species level, the coordinated relationships were found between above- and below-ground traits of clonal plants under both low and high soil moisture conditions across all wetlands; while a trade-off relationship was found between internode diameter and length of clonal plants. Conclusions Plant traits exhibited the similar pattern among wetlands at both levels, but performed better at high soil moisture conditions in marsh wetlands. Coordinated relationships between above- and below-ground traits will be further clarified whether such coordination can be also seen in other wetland ecosystems.

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Environmental adaptability of the genus Carex-A case study of Carex heterostachya and Carex breviculmis in northwest China

Feng

Liu

et al. 2023

Plant Ecol

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Carex heterostachya (CH) and Carex breviculmis (CB) are easy to develop lawns in a short period and exhibit high ornamental value in northwest China with high summer temperatures, uneven rainfall, and poor soil. Several questions are raised, including what type of plant functional traits has they formed for long-term survival and adaptation to this environment, which plant is more adaptable, as well as which leaf functional traits are critical to photosynthetic characteristics. After exploring the leaf functional traits of the two plants by gas exchange technology and eld emission electron scanning technology, the following conclusions are drawn: (a) CB is a slow investment-return plant, which exhibits strong environmental adaptability and plasticity, and is resistant to barrenness, drought and shade. CH is a kind of quick investment-return plant, with high photosynthetic e ciency, well-developed transport tissue, and relatively shade-tolerant. The soil with low water content and poorer soil is suitable for CB cultivation, and CH is suitable for cultivation in the environment with su cient light and rich nutrients. At the same time, both CB and CH can be used to enrich the diversity of understory landscape. (b) Carex have strong environmental adaptability, large variation in leaf structure traits, as well as strong plasticity. Leaf anatomical characters are stable, whereas there are differences in the interspeci c variability and plasticity. (c) Speci c leaf area (SLA) can serve as the main factor affecting the photosynthetic availability of Carex, the thickness of the stratum corneum(CUT), the thickness of the upper(UET) are secondary factors. These nding can provide a theoretical basis for the cultivation and application of Carex and the expansion of turfgrass germplasm resources.

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Ecological adaptation strategies of the clonal plant Phragmites australis at the Dunhuang Yangguan wetland in the arid zone of northwest China

Cited by 6 publications

References 60 publications

The reduced growth due to elevated CO2 concentration hinders the sexual reproduction of mature Northern pipevine (Aristolochia contorta Bunge)

The reduced growth due to elevated CO2 concentration hinders the sexual reproduction of mature Northern pipevine (Aristolochia contorta Bunge)

Determinants and relationships of above- and below-ground plant traits in typical marsh wetlands in northern China

Environmental adaptability of the genus Carex-A case study of Carex heterostachya and Carex breviculmis in northwest China

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