4.7 Article

Sexual competition and light regimes interactively affect dimorphism and competitiveness of opposite sexes in Populus yunnanensis

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

Females face more positive plant-soil feedback and intersexual competition under adequate nitrogen conditions compared to males in Populus cathayana

Miao Liu et al.

Summary: This study assesses the influence of nutrient availability on plant-soil feedback (PSF) and sexual competition in dioecious Populus cathayana. The results show that PSF reduces sexual competition at low nitrogen availability, and intersexual competition and nutrient limitation promote sexual coexistence.

SCIENCE OF THE TOTAL ENVIRONMENT (2023)

Review Biochemistry & Molecular Biology

How does plant sex alter microbiota assembly in dioecious plants?

Qingxue Guo et al.

Summary: Plant microbiota can be controlled by the sex of the host plant, with male plants forming more stable and resistant microbiota that help the host resist environmental stresses. Male and female plants can distinguish their own and different sex plants, and males can alleviate stress-induced damage in females. Understanding the role of sex in microbiota assembly is important for protecting female plants from unfavorable environments.

TRENDS IN MICROBIOLOGY (2023)

Article Plant Sciences

Populus euphratica males exhibit stronger drought and salt stress resistance than females br

Lei Yu et al.

Summary: This study investigated the sexual dimorphism in Populus euphratica under drought, salinity, and combined stress. The results showed that male P. euphratica seedlings exhibited stronger resistance to stress and had protective structures, higher biomass, and enhanced physiological responses compared to females. The significant sex x drought x salinity interactions suggested that the sexual dimorphism depends on the severity of stress. These findings imply that future climate change with increased aridity and soil salinity may lead to more severe shifts in the sex ratio of P. euphratica forests.

ENVIRONMENTAL AND EXPERIMENTAL BOTANY (2023)

Article Plant Sciences

Allelochemicals and soil microorganisms jointly mediate sex-specific belowground interactions in dioecious Populus cathayana

Zhichao Xia et al.

Summary: This study found that female roots release a greater amount and more diverse phenolic allelochemicals, resulting in growth inhibition of same-sex neighbors and deterioration of the soil microorganism community. When grown with males, female growth was consistently enhanced, especially in the roots. The presence of males also reduced phenolic accumulation in the soil, leading to a shift from allelopathic inhibition to chemical facilitation. These effects were enhanced by a favorable soil bacterial community and increased bacterial diversity, which induced changes in the orientation of female roots.

NEW PHYTOLOGIST (2023)

Article Ecology

Nonstructural carbohydrates predict survival in saplings of temperate trees under carbon stress

Frida Piper et al.

Summary: Nonstructural carbohydrates (NSCs) play an important role in plant survival and can predict plant survival under carbon stress. However, different species may have different requirements and limitations for NSCs content and concentration.

FUNCTIONAL ECOLOGY (2022)

Article Microbiology

Plant sex affects plant-microbiome assemblies of dioecious Populus cathayana trees under different soil nitrogen conditions

Qingxue Guo et al.

Summary: The study found significant differences in microbial compositions between male and female plants in different environments, particularly in fungal endophytes which exhibited distinct community structures, keystone species, and complexity between P. cathayana males and females. The fungal co-occurrence network was more complex in young female leaves, showing significantly higher alpha diversity compared to young male leaves.

MICROBIOME (2022)

Article Plant Sciences

Effect of Light Intensity on Morphology, Photosynthesis and Carbon Metabolism of Alfalfa (Medicago sativa) Seedlings

Wei Tang et al.

Summary: This study investigated the effects of light intensity on plant morphology and photosynthesis in alfalfa. It found that low light intensity resulted in increased plant height, photosynthetic pigments, leaf nitrogen content, and maximal PSII quantum yield. However, it also led to a decrease in carbohydrates and biomass accumulation. On the other hand, high light intensity improved leaf orientation towards the sun, increased photosynthetic capacity, and enhanced carbohydrate accumulation.

PLANTS-BASEL (2022)

Article Agronomy

Effects of simulated nitrogen deposition on the ecophysiological responses of Populus beijingensis and P. cathayana under intra- and interspecific competition

Lianghua Chen et al.

Summary: N deposition can reverse competitive relationships between poplars, and exotic P. beijingensis has the potential to outcompete native P. cathayana under growing N deposition.

PLANT AND SOIL (2022)

Review Plant Sciences

Sexual differences and sex ratios of dioecious plants under stressful environments

Miao Liu et al.

Summary: Dioecious plants exhibit sexual dimorphism in both sexual features and secondary sex characteristics. Responses to stress may vary between sexes depending on species and stress types, highlighting the need for further research on dioecious plant species to generalize stress effects.

JOURNAL OF PLANT ECOLOGY (2021)

Article Forestry

Sexual differences in growth and defence of Populus yunnanensis under drought stress

Rong Zhang et al.

CANADIAN JOURNAL OF FOREST RESEARCH (2019)

Review Forestry

Carbon dynamics in trees: feast or famine?

Anna Sala et al.

TREE PHYSIOLOGY (2012)

Article Plant Sciences

Nitrogen nutrient status induces sexual differences in responses to cadmium in Populus yunnanensis

Lianghua Chen et al.

JOURNAL OF EXPERIMENTAL BOTANY (2011)

Article Plant Sciences

Sex-related adaptive responses to interaction of drought and salinity in Populus yunnanensis

Lianghua Chen et al.

PLANT CELL AND ENVIRONMENT (2010)

Article Plant Sciences

Refining the stress-gradient hypothesis for competition and facilitation in plant communities

Fernando T. Maestre et al.

JOURNAL OF ECOLOGY (2009)