Female germ unit in Genlisea and Utricularia, with remarks about the evolution of the extra-ovular female gametophyte in members of Lentibulariaceae

Płachno, Bartosz J.

doi:10.1007/s00709-010-0185-x

Cited by 16 publications

(22 citation statements)

References 60 publications

(74 reference statements)

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“…Embryological characters are useful and important in taxonomical and evolutionary analyses (e.g., Herr, 1984;Prakash, 1987;Tobe, 1989;Igersheim and Endress, 1998;Endress and Igersheim, 2000;Igersheim et al, 2001;Endress 2005;Siuta et al, 2005;Płachno and Świątek, 2010;Płachno, 2011;Kuta et al, 2012). Studies on ovule morphology and histology can also help in understanding evolutionary changes (Soverna et al, 2003;Endress, 2005Endress, , 2011Wang and Ren, 2007;Mariath, 2008, 2010;Płachno and Świątek, 2009;Fagundes and Mariath, 2014).…”

Section: Discussionmentioning

confidence: 99%

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Comparative Anatomy of Ovules in Galinsoga, Solidago and Ratibida (Asteraceae)

Kolczyk¹,

Stolarczyk²,

Płachno³

2015

Acta Biologica Cracoviensia S. Botanica

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Many Asteraceae species have been introduced into horticulture as ornamental or interesting exotic plants. Some of them, including Solidago and Galinsoga, are now aggressive weeds; others such as Ratibida are not. Special modifications of the ovule tissue and the occurrence of nutritive tissue have been described in several Asteraceae species, including invasive Taraxacum species. This study examined whether such modifications might also occur in other genera. We found that the three genera examined - Galinsoga (G. quadriradiata), Solidago (S. canadensis, S. rigida, S. gigantea) and Ratibida (R. pinnata) - differed in their nutritive tissue structure. According to changes in the integument, we identified three types of ovules in Asteraceae: “Taraxacum” type (recorded in Taraxacum, Bellis, Solidago, Chondrilla), with well-developed nutritive tissue having very swollen cell walls of spongy structure; “Galinsoga” type (in Galinsoga), in which the nutritive tissue cells have more cyto-plasm and thicker cell walls than the other integument parenchyma cells, and in which the most prominent character of the nutritive tissue cells is well-developed rough ER; and “Ratibida” type (in Ratibida), in which the nutritive tissue is only slightly developed and consists of large highly vacuolated cells. Our study and future investigations of ovule structure may be useful in phylogenetic analyses.

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Section: Discussionmentioning

confidence: 99%

“…Samples for TEM were prepared as described earlier (Płachno andŚwiątek, 2009, 2010). Briefly, for electron microscopy the ovaries were fixed with 2.5% formaldehyde and 2.5% glutaraldehyde in 0.05 M cacodylate buffer (pH 7.0) or 2.5% glutaraldehyde in 0.1 M sodium phosphate buffer (pH 7.4).…”

Section: Methods Light and Electron Microscopymentioning

confidence: 99%

Comparative Anatomy of Ovules in Galinsoga, Solidago and Ratibida (Asteraceae)

Kolczyk¹,

Stolarczyk²,

Płachno³

2015

Acta Biologica Cracoviensia S. Botanica

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“…Płachno et al . ; Płachno & Świątek ; Płachno ), with rare studies dedicated to pollination biology, especially within the genus Utricularia L. (Lentibulariaceae) ( e.g . Hobbhahn et al .…”

Section: Introductionmentioning

confidence: 99%

“…Friday 1992;Jobson & Albert 2002;Ellison & Gotelli 2009;Płachno et al 2012) and embryology (e.g. Płachno et al 2009;Płachno & Swia z tek 2010;Płachno 2011), with rare studies dedicated to pollination biology, especially within the genus Utricularia L. (Lentibulariaceae) (e.g. Hobbhahn et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Reproductive biology and pollination of Utricularia reniformis A.St.‐Hil. (Lentibulariaceae)

et al. 2013

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Utricularia reniformis is an endemic Brazilian carnivorous plant, most common in high-altitude grasslands. Knowledge of the reproductive biology of U. reniformis is essential for planning conservation strategies, but it is currently poorly understood. Thus, we studied the floral morphology, floral biology, breeding system and pollination of this species. U. reniformis produces and stores nectar in the flower spur, a classic feature of bee-pollinated flowers, and we recorded Xylocopa sp. and Bombus sp. as pollinators. Moreover, although it is self-compatible it is an obligate animal-pollinated species, as the sensitive stigma avoids self-pollination. However, in natural conditions reproductive success is low due to the rarity of visits from pollinators. We suggest that the low reproductive success caused by a deficit of pollinators may affect gene flow, causing loss of genetic diversity in U. reniformis.

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“…Darwin 1875; Goebel 1891Goebel , 1898Goebel , 1905Lloyd 1942;Chormanski and Richards 2012;Rutishauser 2016), embryology (e.g. Kamieński 1877; Merz 1897; Lang 1901;Kondo et al 1978;Płachno andŚwiątek 2010, 2011;Płachno 2011), histology/ ultrastructure (e.g. Fineran 1980;Płachno et al 2017aPłachno et al , 2017b, and molecular phylogeny/genetics (e.g.…”

Section: Introductionmentioning

confidence: 99%

Unusual developmental morphology and anatomy of vegetative organs in Utricularia dichotoma—leaf, shoot and root dynamics

Reut

Płachno

2019

Protoplasma

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The terrestrial carnivorous species Utricularia dichotoma is known for a great phenotypic plasticity and unusual vegetative organs. Our investigation on 22 sources/populations revealed that after initiation of a leaf and two bladders on a stolon, a bud was formed in the proximal axil of the leaf, developing into a rosette with up to seven organs. The first two primordia of the bud grew into almost every possible combination of organs, but often into two anchor stolons. The patterns were generally not population specific. The interchangeability of organs increased with increasing rank in the succession of organs on stolon nodes. A high potential of switching developmental programs may be successful in a fluctuating environment. In this respect, we were able to show that bladders developed from anchor stolons experimentally when raising the water table. Anatomical structures were simple, lacunate and largely homogenous throughout all organs. They showed similarities with many hydrophytes, reflecting the plant's adaptation to (temporarily) submerged conditions. The principal component analysis was used in the context of dynamic morphology to illustrate correlations between organ types in the morphospace of U. dichotoma, revealing an organ specific patchwork of developmental processes for typical leaves and shoots, and less pronounced for a typical root. The concept and methods we applied may prove beneficial for future studies on the evolution of Lentibulariaceae, and on developmental morphology and genetics of unusual structures in plants.

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Female germ unit in Genlisea and Utricularia, with remarks about the evolution of the extra-ovular female gametophyte in members of Lentibulariaceae

Cited by 16 publications

References 60 publications

Comparative Anatomy of Ovules in Galinsoga, Solidago and Ratibida (Asteraceae)

Comparative Anatomy of Ovules in Galinsoga, Solidago and Ratibida (Asteraceae)

Reproductive biology and pollination of Utricularia reniformis A.St.‐Hil. (Lentibulariaceae)

Unusual developmental morphology and anatomy of vegetative organs in Utricularia dichotoma—leaf, shoot and root dynamics

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