Body size and clonality consequences for sexual reproduction in a perennial herb of Brazilian rupestrian grasslands

Demetrio, Guilherme Ramos; Coelho, Flávia Freitas; Barbosa, Machado

doi:10.1590/bjb.2014.0070

Cited by 6 publications

(5 citation statements)

References 29 publications

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“…(Pluess & Stöcklin, 2005;Wang et al, 2008). BUS individuals were smaller than FLS individuals, suggesting a threshold size for sexual reproduction, as predicted by life history theory and observed in many species (Coelho et al, 2014;Demetrio et al, 2014;Hartnett, 1990;Schmid et al, 1995; Xie et al, 2014). The threshold size for bulbil and flower production was 0.067 m 2 and 0.299 m 2 in leaf area, respectively.…”

Section: Size Dependency Of Sex Allocationsupporting

confidence: 65%

“…For example, Weiner (1988) predicted from a simple constraint model that plants have a minimum size for sexual reproduction. Supporting this prediction, a threshold size for sexual reproduction has been documented in many species (Coelho et al, 2014;Demetrio et al, 2014;Pluess & Stöcklin, 2005;Schmid et al, 1995;Wang et al, 2008); however, whether clonal plants should have a minimum size for clonal reproduction is still under debate (Goldberg et al, 2020).…”

Section: Introductionmentioning

confidence: 95%

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Size‐dependent clonal reproduction and sex allocation in the monoecious Begonia emeiensis

Wang,

Wu,

Xia

et al. 2023

Plant Species Biology

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Size‐dependent clonal and sexual reproduction has been studied in many species. However, very few attempts have investigated size‐dependent resource allocation among clonal reproduction, female function, and male function within a species. Moreover, how clonal reproduction and sexual reproduction interact to influence size‐dependent sex allocation has not been explored. In this study, we investigated the size dependency of clonal reproduction and sex allocation and how clonal reproduction and sexual reproduction interact to influence size‐dependent female function, male function, and sex allocation in the monoecious Begonia emeiensis. Individuals with no reproduction, reproducing clonally through bulbils, reproducing sexually through flowers, and reproducing through both bulbils and flowers differed significantly from each other in terms of size (leaf area), suggesting a threshold size for clonal versus sexual reproduction. Bulbil number per individual increased with size regardless of flower production. In contrast, the relationship between size and female and male flower production per individual was influenced by bulbil production; both female and male flower numbers per individual increased with size at a slower rate for individuals reproducing clonally and sexually than for those reproducing only sexually. The ratio of female to male flowers per individual increased with size independent of bulbil production. Our study shows that the size dependency of clonal reproduction was unlikely to be influenced by sexual reproduction; however, the size dependency of female and male function was influenced by clonal reproduction.

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Section: Size Dependency Of Sex Allocationsupporting

confidence: 65%

Section: Introductionmentioning

confidence: 95%

Size‐dependent clonal reproduction and sex allocation in the monoecious Begonia emeiensis

Wang,

Wu,

Xia

et al. 2023

Plant Species Biology

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“…These ramets may also participate in labor division processes with other attached ramets (Alpert & Stuefer, 1997). This may enhance ramet survival and success because different ramets may be linked to different ecological functions at different times (Demetrio et al, 2014). Ramets also present more sustentation tissues in comparison to seedlings of the same size (Cirne & Scarano, 2001), which allows their better establishment in unstable habitats like dunes and sand ridges, enhancing the use of clonal species as triggers for restoration processes in these habitats.…”

Section: Discussionmentioning

confidence: 99%

Clonal propagation, scale dependent assembly, and nucleation drives natural regeneration in a restinga sandy coastal plain

Matias,

Demetrio,

da Silva

et al. 2024

Land Degrad Dev

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On the sandy coastal plains, environmental filters that limit seedling establishment and survival create a naturally heterogeneous landscape, formed by vegetation patches inserted in a matrix of bare sandy soil. The succession processes in these ecosystems depend on some pioneer species that facilitate the recruitment and survival of other species. Here, we evaluated the spatial pattern and changes of vegetation patches of restinga (i.e., coastal sandy plain vegetation) over one decade (2011–2021). The research was carried out in Alagoas State, Northeast of Brazil. We considered as patches the vegetation islands inserted in a matrix of bare sandy soil and applied methodologies of photointerpretation. Landscape metrics included patch area, edge, shape, and core area. To test the effect of landscape metrics on species occurrence and species richness per patch, we applied generalized linear models (GLM) with binomial and quasi‐Poisson distributions, respectively. We used the “betapart” package to evaluate the importance of turnover and nestedness as drivers of beta diversity among patches. Our data indicate that a key plant (Myrciaria floribunda), which can propagate by root suckers, initiates a succession process, creating regeneration nuclei, which seem to follow a deterministic succession pattern until the patch reaches 10 m2 in area. In the successional sequence, the patches grow and coalesce with neighboring patches. Species richness of patches presented an unimodal response to patch size. Overall, there is a greater contribution of species turnover to among‐patch beta diversity. However, for patches smaller than 10 m2, beta diversity was mostly driven by nestedness, reflecting a process of species addition to the growing patches. The succession pattern found in the study area should be considered for the formulation of nature‐based restoration models, expected to be more efficient and effective for ecosystems with similar environmental filters.

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“…On the contrary, in plumular axes branch production in apical zone decreased, post-application and resources were directed towards the production of vegetative structures in basal zone, generating an increase of the rhizome system. These trade-offs between reproductive effort and growthrelated traits confer competitive ability and resistance to stressful environments (Bonser & Aarssen, 2009), after the plant has reached a minimum vegetative size (Demetrio et al, 2014). On the other hand, E. retusa, retained more buds in the mid zone than in the basal zone, whereas it did not present buds in the apical zone.…”

Section: Discussionmentioning

confidence: 99%

The role of bud bank in glyphosate tolerance of two herbaceous species

Panigo¹,

Dellaferrera²,

Alesso³

et al. 2019

Bol. Soc. Argent. Bot.

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Background and aims: Commelina erecta and Eutsachys retusa are two perennial weeds, which show high resprouting after glyphosate application. This behavior represents a serious problem for weed management. The purpose of this study was to characterize the bud bank of both species and to assess their response to glyphosate application. M&M: We analyzed 120 reproductive shoots of C. erecta, and 80 reproductive shoots of E. retusa, at 30- and 60-days post- herbicide application. The doses applied to C. erecta were 0 (control), 1.200 and 2.400 g a.i. ha -1 , and to E. retusa were 0 (control), 480 and 1200 g a.i. ha -1 . Results: We found that both species presented active buds in approximately 50% of their nodes, even after herbicide application. Bud bank dynamics changed in both weeds after herbicide application, and therefore their growth pattern. The activation of originally inhibited buds allowed weeds to regrow and survive after glyphosate application altering their architecture. Conclusions: The bud bank plays an important role in glyphosate tolerance in both weeds. The resprouting capacity in both species was similar for any dose of glyphosate applied. Therefore, an alternative control strategy based on the increase of the dose of herbicide would not be a successful alternative for the management of these weeds. The interruption of the storage of reserves in the rhizome system and the reduction of the number of buds would be key to effective long-term management of these and other perennial weeds in no tillage cropping system.

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Body size and clonality consequences for sexual reproduction in a perennial herb of Brazilian rupestrian grasslands

Cited by 6 publications

References 29 publications

Size‐dependent clonal reproduction and sex allocation in the monoecious Begonia emeiensis

Size‐dependent clonal reproduction and sex allocation in the monoecious Begonia emeiensis

Clonal propagation, scale dependent assembly, and nucleation drives natural regeneration in a restinga sandy coastal plain

The role of bud bank in glyphosate tolerance of two herbaceous species

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