Effect of maternal infection on progeny growth and resistance mediated by maternal genotype and nutrient availability

Höckerstedt, Layla; Susi, Hanna; Laine, Anna‐Liisa

doi:10.1111/1365-2745.13568

Cited by 4 publications

(1 citation statement)

References 117 publications

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“…Remarkably little is known about how conditions experienced during the flowering stage influence phenotypic and genetic diversity of seagrass populations at large (Höckerstedt et al, 2021). A handful of published studies indicate a positive effect of OA on flowering frequency, seed quality, germination, and seedling carbon gains (Palacios and Zimmerman, 2007;Burnell et al, 2014;Hernán et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

How Does Ocean Acidification Affect the Early Life History of Zostera marina? A Series of Experiments Find Parental Carryover Can Benefit Viability or Germination

et al. 2021

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Elevated partial pressure of carbon dioxide (pCO2) as a concomitant of global climate change may facilitate the establishment of future seagrass meadows and subsequently its benefit could be incorporated into techniques to increase restoration success. In five manipulative experiments, we determined how increased CO2 affects the maturation of flowers, and the development of seeds and seedlings for the foundation species Zostera marina. Experiments tested the development from both seeds collected from non-treated flowering shoots (direct) and seeds harvested from flowering shoots after CO2 exposure (parental carryover). Flowering shoots were collected along the western coast of Sweden near the island of Skafto. The seeds produced were used in experiments conducted at Kristineberg, Sweden and Dauphin Island, AL, United States. Experiments varied in temperature (16, 18°C) and salinity (19, 33 ppt), as well as duration and magnitude of elevated CO2 exposure. Environmental conditions among experiments, such as temperature (16, 18°C) and salinity (19, 33 ppt), as well as duration and magnitude of pCO2 exposure differed. Flowering maturation, spathe number, seed production, and indicators of seed quality did not appear to be affected by 39–69 days of exposure to CO2 conditions outside of natural variability (pCO2 = 1547.2 ± 267.60 μatm; pHT = 7.53 ± 0.07). Yet, seeds produced from these flowers showed twofold greater germination success. In another experiment, flowering shoots were exposed to an extreme CO2 condition (pCO2 = 5950.7 ± 1,849.82 μatm; pHT = 6.96 ± 0.15). In this case, flowers generated seeds that demonstrated a fivefold increase in an indicator for seed viability (sinking velocity). In the latter experiment, however, germination appeared unaffected. Direct CO2 effects on germination and seedling production were not observed. Our results provide evidence of a parental CO2 effect that can benefit germination or seed viability, but early benefits may not lead to bed establishment if other environmental conditions are not well suited for seedling development. Outcomes have implications for restoration; CO2 can be supplied to flowering shoot holding tanks to bolster success when the purpose is to redistribute seeds to locations where beds are extant and water quality is adequate.

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Section: Introductionmentioning

confidence: 99%

How Does Ocean Acidification Affect the Early Life History of Zostera marina? A Series of Experiments Find Parental Carryover Can Benefit Viability or Germination

et al. 2021

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Heritable induced resistance in Arabidopsis thaliana: Tips and tools to improve effect size and reproducibility

Furci,

Pascual‐Pardo,

Tirot

et al. 2023

Plant Direct

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Over a decade ago, three independent studies reported that pathogen‐ and herbivore‐exposed Arabidopsis thaliana produces primed progeny with increased resistance. Since then, heritable induced resistance (h‐IR) has been reported across numerous plant‐biotic interactions, revealing a regulatory function of DNA (de)methylation dynamics. However, the identity of the epi‐alleles controlling h‐IR and the mechanisms by which they prime defense genes remain unknown, while the evolutionary significance of the response requires confirmation. Progress has been hampered by the relatively high variability, low effect size, and sometimes poor reproducibility of h‐IR, as is exemplified by a recent study that failed to reproduce h‐IR in A. thaliana by Pseudomonas syringae pv. tomato (Pst). This study aimed to improve h‐IR effect size and reproducibility in the A. thaliana–Pst interaction. We show that recurrent Pst inoculations of seedlings result in stronger h‐IR than repeated inoculations of older plants and that disease‐related growth repression in the parents is a reliable marker for h‐IR effect size in F1 progeny. Furthermore, RT‐qPCR‐based expression profiling of genes controlling DNA methylation maintenance revealed that the elicitation of strong h‐IR upon seedling inoculations is marked by reduced expression of the chromatin remodeler DECREASE IN DNA METHYLATION 1 (DDM1) gene, which is maintained in the apical meristem and transmitted to F1 progeny. Two additional genes, MET1 and CHROMOMETHYLASE3 (CMT3), displayed similar transcriptional repression in progeny from seedling‐inoculated plants. Thus, reduced expression of DDM1, MET1, and CMT3 can serve as a marker of robust h‐IR in F1 progeny. Our report offers valuable information and markers to improve the effect size and reproducibility of h‐IR in the A. thaliana–Pst model interaction.

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Increased Stress Tolerance in Plants as a Result of Parental Effects

Rasekh

2024

Molecular Dynamics of Plant Stress and Its Management

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Effect of maternal infection on progeny growth and resistance mediated by maternal genotype and nutrient availability

Cited by 4 publications

References 117 publications

How Does Ocean Acidification Affect the Early Life History of Zostera marina? A Series of Experiments Find Parental Carryover Can Benefit Viability or Germination

How Does Ocean Acidification Affect the Early Life History of Zostera marina? A Series of Experiments Find Parental Carryover Can Benefit Viability or Germination

Heritable induced resistance in Arabidopsis thaliana: Tips and tools to improve effect size and reproducibility

Increased Stress Tolerance in Plants as a Result of Parental Effects

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