Why is root sprouting not more common among plants? Phytohormonal clues and ecological correlates

Martínková, Jana; Klimeš, Adam; Motyka, Václav; Adamec, Lubomír; Dobrev, Petre I.; Filepová, Roberta; Gaudinová, Alena; Lacek, Jozef; Marešová, I.; Klimešová, Jitka

doi:10.1016/j.envexpbot.2022.105147

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…In some species (about 10% in Central Europe) not only AMs on stems but also adventitious meristems on hypocotyls and roots play a role in perennation (e.g., Euphorbia esula , Cirsium arvense ) ( Klimešová et al., 2015 ; Bartušková et al., 2021 ). Anatomical investigations revealed that meristematic cells in the root VCM are probably essential for formation of adventitious vegetative meristems ( Bartušková et al., 2021 ; Martínková et al., 2023 ).…”

Section: The Effect Of Axillary Meristems On Plant Longevitymentioning

confidence: 99%

The central role of stem cells in determining plant longevity variation

Karami¹,

Mueller‐Roeber²,

Rahimi³

2023

Plant Communications

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Section: The Effect Of Axillary Meristems On Plant Longevitymentioning

confidence: 99%

The central role of stem cells in determining plant longevity variation

Karami¹,

Mueller‐Roeber²,

Rahimi³

2023

Plant Communications

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“…Our data show that the novel expression of root-sprouting can happen in one generation only, but the extent of its manifestation likely depends on the level of gene-deregulation. Root-sprouting is principally regulated by cytokinins and their interaction with auxin [83][84][85][86]. Therefore, the deregulation of such metabolic pathway as a direct effect of WGM is probably playing a central role in enhancing vegetative propagation in P. rhodopea autopolyploids.…”

Section: (C) Whole-genome Multiplication and Vegetative Reproductionmentioning

confidence: 99%

The novel expression of clonality following whole-genome multiplication compensates for reduced fertility in natural autopolyploids

2023

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Exploring the fitness consequences of whole-genome multiplication (WGM) is essential for understanding the establishment of autopolyploids in diploid parental populations, but suitable model systems are rare. We examined the impact of WGM on reproductive traits in three major cytotypes (2 x , 3 x , 4 x ) of Pilosella rhodopea , a species with recurrent formation of neo-autopolyploids in mixed-ploidy populations. We found that diploids had normal female sporogenesis and gametogenesis, high fertility, and produced predominantly euploid seed progeny. By contrast, autopolyploids had highly disturbed developmental programs that resulted in significantly lower seed set and a high frequency of aneuploid progeny. All cytotypes, but particularly triploids, produced gametes of varying ploidy, including unreduced ones, that participated in frequent intercytotype mating. Noteworthy, the reduced investment in sexual reproduction in autopolyploids was compensated by increased production of axillary rosettes and the novel expression of two clonal traits: adventitious rosettes on roots (root-sprouting), and aposporous initial cells in ovules which, however, do not result in functional apomixis. The combination of increased vegetative clonal growth in autopolyploids and frequent intercytotype mating are key mechanisms involved in the formation and maintenance of the largest diploid-autopolyploid primary contact zone ever recorded in angiosperms.

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“…Recently, scientific interest in clonal plant biology has been renowned through a series of publications arguing for the necessity of studies integrating ecology and evolution of clonal plants with functional aspects and highlighting current key scientific questions and problems in this direction [1,[3][4][5][6][7][8][9][10][11][12][13]. It is indeed surprising that the ability of plants to grow clonally has been overlooked for decades; especially, given the wide distribution of clonal species.…”

Section: Introductionmentioning

confidence: 99%

Halophytic Clonal Plant Species: Important Functional Aspects for Existence in Heterogeneous Saline Habitats

Ievinsh

2023

Plants

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Plant modularity-related traits are important ecological determinants of vegetation composition, dynamics, and resilience. While simple changes in plant biomass resulting from salt treatments are usually considered a sufficient indicator for resistance vs. susceptibility to salinity, plants with a clonal growth pattern show complex responses to changes in environmental conditions. Due to physiological integration, clonal plants often have adaptive advantages in highly heterogeneous or disturbed habitats. Although halophytes native to various heterogeneous habitats have been extensively studied, no special attention has been paid to the peculiarities of salt tolerance mechanisms of clonal halophytes. Therefore, the aim of the present review is to identify probable and possible halophytic plant species belonging to different types of clonal growth and to analyze available scientific information on responses to salinity in these species. Examples, including halophytes with different types of clonal growth, will be analyzed, such as based on differences in the degree of physiological integration, ramet persistence, rate of clonal expansion, salinity-induced clonality, etc.

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Why is root sprouting not more common among plants? Phytohormonal clues and ecological correlates

Cited by 5 publications

References 48 publications

The central role of stem cells in determining plant longevity variation

The central role of stem cells in determining plant longevity variation

The novel expression of clonality following whole-genome multiplication compensates for reduced fertility in natural autopolyploids

Halophytic Clonal Plant Species: Important Functional Aspects for Existence in Heterogeneous Saline Habitats

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