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  1. Article ; Online: The adaptive function of touch-sensitive stigmas

    Krishna, Shivani / Jos, Elsa M. / Somanathan, Hema

    Plant Ecol. 2023 Jan., v. 224, no. 1 p.83-94

    2023  

    Abstract: Touch-sensitive movement in stigmas of angiosperm flowers is a phenomenon observable in a timescale of seconds or minutes. Despite its early documentation in a small fraction of angiosperm species, touch-sensitive stigmas (TSS) have been little studied. ... ...

    Abstract Touch-sensitive movement in stigmas of angiosperm flowers is a phenomenon observable in a timescale of seconds or minutes. Despite its early documentation in a small fraction of angiosperm species, touch-sensitive stigmas (TSS) have been little studied. In this review, we examine its occurrence in the angiosperm phylogeny and investigate associations between plant reproductive traits and TSS. Prominent hypotheses regarding the evolution of TSS invoke the adaptive functions of outcrossing, pollination efficiency, and pollen germination. Using literature searches for species reported with TSS, we found that the distribution of TSS is phylogenetically clustered within the order Lamiales, while Bignoniaceae emerges as the family that abounds in TSS species. We found the strongest association with bisexuality in flowers. The other traits associated with TSS include self-incompatible mating system, dichogamy, large campanulate corollas, specialized pollination, and multiple ovules. Thus, we predict that TSS can be an effective reproductive strategy in conjunction with these specific traits.
    Keywords Bignoniaceae ; bisexuality ; dichogamy ; outcrossing ; phylogeny ; pollen germination ; pollination
    Language English
    Dates of publication 2023-01
    Size p. 83-94.
    Publishing place Springer Netherlands
    Document type Article ; Online
    Note Review
    ZDB-ID 1364679-5
    ISSN 1573-5052 ; 1385-0237
    ISSN (online) 1573-5052
    ISSN 1385-0237
    DOI 10.1007/s11258-022-01281-2
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Compartmentalization of specialized metabolites across vegetative and reproductive tissues in two sympatric Psychotria species.

    Schneider, Gerald F / Carlson, Cole A / Jos, Elsa M / Beckman, Noelle G

    American journal of botany

    2023  Volume 110, Issue 7, Page(s) e16191

    Abstract: Premise: The specialized metabolites of plants are recognized as key chemical traits in mediating the ecology and evolution of sundry plant-biotic interactions, from pollination to seed predation. Intra- and interspecific patterns of specialized ... ...

    Abstract Premise: The specialized metabolites of plants are recognized as key chemical traits in mediating the ecology and evolution of sundry plant-biotic interactions, from pollination to seed predation. Intra- and interspecific patterns of specialized metabolite diversity have been studied extensively in leaves, but the diverse biotic interactions that contribute to specialized metabolite diversity encompass all plant organs. Focusing on two species of Psychotria shrubs, we investigated and compared patterns of specialized metabolite diversity in leaves and fruit with respect to each organ's diversity of biotic interactions.
    Methods: To evaluate associations between biotic interaction diversity and specialized metabolite diversity, we combined UPLC-MS metabolomic analysis of foliar and fruit specialized metabolites with existing surveys of leaf- and fruit-centered biotic interactions. We compared patterns of specialized metabolite richness and variance among vegetative and reproductive tissues, among plants, and between species.
    Results: In our study system, leaves interact with a far larger number of consumer species than do fruit, while fruit-centric interactions are more ecologically diverse in that they involve antagonistic and mutualistic consumers. This aspect of fruit-centric interactions was reflected in specialized metabolite richness-leaves contained more than fruit, while each organ contained over 200 organ-specific specialized metabolites. Within each species, leaf- and fruit-specialized metabolite composition varied independently of one another across individual plants. Contrasts in specialized metabolite composition were stronger between organs than between species.
    Conclusions: As ecologically disparate plant organs with organ-specific specialized metabolite traits, leaves and fruit can each contribute to the tremendous overall diversity of plant specialized metabolites.
    MeSH term(s) Psychotria ; Chromatography, Liquid ; Tandem Mass Spectrometry ; Seeds ; Fruit ; Plants
    Language English
    Publishing date 2023-06-22
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 2935-x
    ISSN 1537-2197 ; 0002-9122
    ISSN (online) 1537-2197
    ISSN 0002-9122
    DOI 10.1002/ajb2.16191
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  3. Article ; Online: Compartmentalization of specialized metabolites across vegetative and reproductive tissues in two sympatric Psychotria species

    Schneider, Gerald F. / Carlson, Cole A. / Jos, Elsa M. / Beckman, Noelle G.

    American Journal of Botany. 2023 July, v. 110, no. 7 p.e16191-

    2023  

    Abstract: PREMISE: The specialized metabolites of plants are recognized as key chemical traits in mediating the ecology and evolution of sundry plant-biotic interactions, from pollination to seed predation. Intra‐ and interspecific patterns of specialized ... ...

    Abstract PREMISE: The specialized metabolites of plants are recognized as key chemical traits in mediating the ecology and evolution of sundry plant-biotic interactions, from pollination to seed predation. Intra‐ and interspecific patterns of specialized metabolite diversity have been studied extensively in leaves, but the diverse biotic interactions that contribute to specialized metabolite diversity encompass all plant organs. Focusing on two species of Psychotria shrubs, we investigated and compared patterns of specialized metabolite diversity in leaves and fruit with respect to each organ's diversity of biotic interactions. METHODS: To evaluate associations between biotic interaction diversity and specialized metabolite diversity, we combined UPLC‐MS metabolomic analysis of foliar and fruit specialized metabolites with existing surveys of leaf‐ and fruit‐centered biotic interactions. We compared patterns of specialized metabolite richness and variance among vegetative and reproductive tissues, among plants, and between species. RESULTS: In our study system, leaves interact with a far larger number of consumer species than do fruit, while fruit‐centric interactions are more ecologically diverse in that they involve antagonistic and mutualistic consumers. This aspect of fruit‐centric interactions was reflected in specialized metabolite richness-leaves contained more than fruit, while each organ contained over 200 organ‐specific specialized metabolites. Within each species, leaf‐ and fruit‐specialized metabolite composition varied independently of one another across individual plants. Contrasts in specialized metabolite composition were stronger between organs than between species. CONCLUSIONS: As ecologically disparate plant organs with organ‐specific specialized metabolite traits, leaves and fruit can each contribute to the tremendous overall diversity of plant specialized metabolites.
    Keywords Psychotria ; biocenosis ; evolution ; fruits ; metabolites ; metabolomics ; pollination ; seed predation ; sympatry ; variance
    Language English
    Dates of publication 2023-07
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 2935-x
    ISSN 1537-2197 ; 0002-9122
    ISSN (online) 1537-2197
    ISSN 0002-9122
    DOI 10.1002/ajb2.16191
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 49/55: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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