Dioecious species and arbuscular mycorrhizal symbioses: The case of<i>Antennaria dioica</i>

Vega-Frutis, Rocío; Varga, Sandra; Kytöviita, Minna‐Maarit

doi:10.4161/psb.23445

Cited by 9 publications

(3 citation statements)

References 18 publications

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“…Hence, it is probably that preinoculation of plants with AMF would help the host bypass the following inhibitory effects of mild salinity on spore germination. Moreover, the root AMF colonization of female plants was higher than that of male plants at lower saline conditions, which is consistent with the results of studies on A. dioica (Vega-Frutis et al, 2013) and D. spicata (Reuss-Schmidt et al, 2015) but contradictory to the results on Populus deltoides (Chen et al, 2016). Overall, our findings support the idea that root mycorrhizal colonization is saline dose dependent and sex specific.…”

Section: Discussionsupporting

confidence: 83%

Sex-Specific Differences in the Physiological and Biochemical Performance of Arbuscular Mycorrhizal Fungi-Inoculated Mulberry Clones Under Salinity Stress

et al. 2021

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Arbuscular mycorrhizal fungi (AMF) are often considered bioameliorators. AMF can promote plant growth under various stressful conditions; however, differences between male and female clones in mycorrhizal strategies that protect plants from the detrimental effects of salinity are not well studied. In this study, we aimed to examine the interactive effects of salinity and AMF on the growth, photosynthetic traits, nutrient uptake, and biochemical responses of Morus alba males and females. In a factorial setup, male and female M. alba clones were subjected to three salinity regimes (0, 50, and 200 mM NaCl) and planted in soil with or without Funneliformis mosseae inoculation. The results showed that NaCl alone conferred negative effects on the growth, salinity tolerance, photosynthetic performance, and shoot and root ionic ratios (K+/Na+, Ca2+/Na+, and Mg2+/Na+) in both sexes; in contrast, mycorrhizal inoculation mitigated the detrimental effects of salinity. Furthermore, the mycorrhizal effects were closely correlated with Mn2+, proline, and N concentrations. Females benefited more from AMF inoculation as shown by the enhancements in their biomass accumulation, and N, proline, K+, Mg2+, Fe2+, Zn2+, and Mn2+ concentrations than males with mycorrhizal inoculation under saline conditions. In comparison, male plants inoculated with AMF showed improvements in biomass allocated to the roots, P, and peroxidase concentrations under saline conditions. These sex-specific differences suggest that male and female mulberry clones adopted different mycorrhizal strategies when growing under saline conditions. Overall, our results provide insight into the sex-specific difference in the performance of AMF-associated mulberry clones, suggesting that female mulberry could be more suitable for vegetation remediation than the male one, due to its higher salinity tolerance.

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Section: Discussionsupporting

confidence: 83%

Sex-Specific Differences in the Physiological and Biochemical Performance of Arbuscular Mycorrhizal Fungi-Inoculated Mulberry Clones Under Salinity Stress

et al. 2021

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“…It is still unknown whether female willows are more tolerant to drought stress than males. In many alpine plants, most cases showed that female individuals were more tolerant to water limitation than males through a compensatory mechanism, which females exhibited a higher photosynthetic rate or present a higher investment in the formation of symbiosis through mycorrhizal fungi as a mechanism to increase their uptake of soil nutrients to compensate their higher reproductive investment (Álvarez-Cansino, Zunzunegui, Díaz-Barradas, & Esquivias, 2010;Obeso, 2002;Rakocevic, Medrado, Martim, & Assad, 2009;Vega-Frutis, Varga, & Kytöviita, 2013;Wu et al, 2018). For example, Salix glauca females showed better growth advantages than males under well-watered conditions; however, water deficiency decreased the photosynthetic capacity and leaf water potential to a greater extent in females than in males (Dudley, 2006;Dudley & Galen, 2007).…”

Section: Introductionmentioning

confidence: 99%

Sexually differential tolerance to water deficiency of Salix paraplesia—A female‐biased alpine willow

Liao

Song

Tang

et al. 2019

Ecology and Evolution

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Salicaceae plants are dioecious woody plants. Previous studies have shown that male individuals are more tolerant to water deficiency than females for male‐biased poplars. However, Salix paraplesia is a female‐biased species in nature. It is still unknown whether female willows are more tolerant to drought stress than males. To better understand the sexually different tolerance to water deficiency in willows, a greenhouse experiment combined with a field investigation was conducted, and physiological traits were tested in male and female S. paraplesia under a drought‐stressed condition (50% of soil water capacity). Our field investigation showed that S. paraplesia was a species with female‐biased sex ratio along altitude gradients (2,400 m, 2,600 m and 2,800 m) in their natural habitats. Our results showed that the height growth, biomass accumulation, total chlorophyll pigment content ( TChl ), and the net photosynthetic rate were higher in female willows than in males at the low and middle altitudes (2,400 m and 2,600 m) rather than at a high altitude (2,800 m) under well‐watered conditions. Under drought‐stressed conditions, the growth, biomass, and photosynthesis were greatly inhibited in both sexes, while females showed higher biomass and TChl content and suffered less negative effects than did males. Particularly, females that originated from a high altitude showed lower leaf relative electrolyte leakage, malondialdehyde content, and less disorder of chloroplast ultrastructures but a higher peroxidase activity (POD) than that of males. Therefore, S. paraplesia females exhibited a better drought tolerance and self‐protective ability than males from high altitude. There is a reason to speculate that the population structure of S. paraplesia at a high altitude would be likely to further female biases with the increased drought intensity in the alpine regions.

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“…This AM fungal species is common in Finland and has also been isolated from sites where A. dioica is the dominant plant (Vega‐Frutis et al . ). Previous studies have shown that an isolate of C. claroideum provides benefits to the plant species tested so far under experimental conditions (Kytöviita et al .…”

Section: Methodsmentioning

confidence: 97%

Competitive interactions are mediated in a sex‐specific manner by arbuscular mycorrhiza in Antennaria dioica

2016

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ABSTRACT• Plants usually interact with other plants, and the outcome of such interaction ranges from facilitation to competition depending on the identity of the plants, including their sexual expression. Arbuscular mycorrhizal (AM) fungi have been shown to modify competitive interactions in plants. However, few studies have evaluated how AM fungi influence plant intraspecific and interspecific interactions in dioecious species.• The competitive abilities of female and male plants of Antennaria dioica were examined in a greenhouse experiment. Females and males were grown in the following competitive settings: (i) without competition, (ii) with intrasexual competition, (iii) with intersexual competition, and (iv) with interspecific competition by Hieracium pilosella -a plant with similar characteristics to A. dioica. Half of the pots were grown with Claroideoglomus claroideum, an AM fungus isolated from the same habitat as the plant material. We evaluated plant survival, growth, flowering phenology, and AM fungal structure production.• Plant survival was unaffected by competition or AM fungi. Competition and the presence of AM fungi reduced plant biomass. However, the sexes responded differently to the interaction between fungal and competition treatments. Both intraand interspecific competition results were sex-specific, and in general, female performance was reduced by AM colonization. Plant competition or sex did not affect the intraradical structures, extraradical hyphae, or spore production of the AM fungus.• These findings suggest that plant sexual differences affect fundamental processes such as competitive ability and symbiotic relationships with AM fungi.

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Dioecious species and arbuscular mycorrhizal symbioses: The case ofAntennaria dioica

Cited by 9 publications

References 18 publications

Sex-Specific Differences in the Physiological and Biochemical Performance of Arbuscular Mycorrhizal Fungi-Inoculated Mulberry Clones Under Salinity Stress

Sex-Specific Differences in the Physiological and Biochemical Performance of Arbuscular Mycorrhizal Fungi-Inoculated Mulberry Clones Under Salinity Stress

Sexually differential tolerance to water deficiency of Salix paraplesia—A female‐biased alpine willow

Competitive interactions are mediated in a sex‐specific manner by arbuscular mycorrhiza in Antennaria dioica

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