Evidence for ovarian self-incompatibility as a cause of self-sterility in the relictual woody angiosperm, Pseudowintera axillaris (Winteraceae). (1/1)
Species within the genus Pseudowintera exhibit high rates of self-sterility. Self-sterility in the genus has been previously posited-but not confirmed-to be the result of late-acting ovarian self-incompatibility (OSI) functioning within nucellar tissue of the ovule to prevent self pollen tubes from entering the embryo sac. Structural and functional aspects of pollen-carpel interactions and early seed development following cross- and self-pollination were investigated in P. axillaris to determine the site, timing and possible mechanisms of self-sterility. No significant differences were observed between pollen tube growth, ovule penetration and double fertilization following cross- and self-pollination. Pollen tubes exhibited phasic growth in an extracellular matrix composed of proteins and carbohydrates, as well as arabinogalactans/arabinogalactan proteins. A uniform failure in embryo sac development prior to division of the zygote was apparent within 15 d following double fertilization by self gametes. Results indicate that SI mechanisms in P. axillaris do not prevent double fertilization from occurring. Instead, mechanisms of self-sterility affect post-zygotic development of the embryo sac. Although self-sterility may be attributed to inbreeding depression, given the post-zygotic nature of failure in embryo sac development, the possibility of late-acting OSI is discussed. (+info)"Pseudowintera" is a botanical term for a small genus of shrubs and trees that are native to New Zealand. It's not a medical term, but rather a taxonomic category used in the plant kingdom. The plants in this genus are commonly known as "horopito" or "pepper shrubs," and they have been used in traditional Maori medicine for various purposes, such as treating skin conditions and digestive issues. However, there is limited scientific evidence to support these uses.
The leaves of some species of Pseudowintera contain polygodial, a compound that has been found to have antimicrobial properties in laboratory studies. Some researchers have suggested that this compound may have potential as a natural preservative or antibiotic, but more research is needed to confirm these possibilities and evaluate the safety and efficacy of using Pseudowintera extracts for these purposes.
Pseudowintera
Pseudowintera colorata
Pseudowintera traversii
Pseudowintera axillaris
Tasmannia piperita
Cleora scriptaria
Black pepper
Pseudocyphellaria allanii
Henry Travers (naturalist)
Veronica traversii
Pimelea traversii
Winteraceae
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Neopanax colensoi
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Horopito
Lake Gault
P. colorata
Zorion guttigerum
List of trees native to New Zealand
Pepper tree
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Colorata12
- Pseudowintera colorata, or mountain horopito, is an evergreen shrub or small tree (1-2.5 m) commonly called pepperwood because its leaves have a very hot bite. (wikipedia.org)
- 1982. Antibiotic compounds from New Zealand plants, II: polygodial, an anti-Candida agent from Pseudowintera colorata. (wikipedia.org)
- Pseudowintera colorata I don't think will but I have a soft spot for this very curious plant and saw a lovely form in Hester Forde's garden outside Cork, a much more sensible place to grow it. (nargs.org)
- Do foliar anthocyanin pigments in horopito (Pseudowintera colorata) function as visual signals to deter insect herbivores? (vuw.ac.nz)
- Horopito Extract (Glycerol (and) Pseudowintera Colorata (Horopito) Leaf) Potassium Sorbate. (realworldnz.com)
- u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIngredients: Polygodial , Kolorex Horopito (Pseudowintera colorata) Extract\u003c\/p\u003e\n\u003cstyle type=\"text\/css\"\u003e\u003c! (inl.asia)
- Horopito (Pseudowintera colorata) is a remarkable plant native to New Zealand that offers a range of notable health benefits. (biofieldexpert.com)
- the leaves of Pseudowintera colorata ("mountain horopito") are another replacement for pepper. (cyrilsancereau.com)
- It contains a herb called Horopito, Pseudowintera colorata, a traditional New Zealand herb that contains a compound called polygodial utilised often for the treatment of thrush. (health-emporium.co.uk)
- Active Ingredient per capsule: Pseudowintera colorata (Horopito) leaf liquid extract 10mg equiv. (health-emporium.co.uk)
- The main ingredient in Kolorex® products is Horopito (Pseudowintera colorata) which contains a powerful anti-fungal active ingredient. (health-emporium.co.uk)
- By Sandra Nomoto Known to Alleviate Multiple Conditions, Horopito Could be One of the World's Oldest and Most Beneficial Plants Horopito, or Pseudowintera colorata is one of the world's earliest evolved flowering plants. (havnlife.com)
Horopito3
- Pseudowintera axillaris, is known as the lowland horopito. (wikipedia.org)
- Pseudowintera traversii, or Travers horopito, is a compact shrub up to one metre tall. (wikipedia.org)
- Pseudowintera traversii (Travers horopito) Compactly branched shrub up to 2m tall. (wikipedia.org)
Winteraceae3
- Pseudowintera is a genus of woody evergreen flowering trees and shrubs, part of family Winteraceae. (wikipedia.org)
- Phylogenetic analyses of representative species from the five genera of Winteraceae (Drimys Pseudowintera Takhtajania Tasmannia and Zygogynum s.l.) were performed using ITS nuclear sequences and a combined data-set of ITS + psbA-trnH + rpS16 sequences (sampling of 30 and 15 species respectively). (lianaecologyproject.com)
- Maximum Likelihood and Bayesian analyses using the internal transcribed spacer (ITS) and psbA-trnH genetic loci confirmed the monophyly and position of Takhtajania, Tasmannia, Drimys, and Pseudowintera within the Winteraceae. (waikato.ac.nz)
Zealand1
- The species of Pseudowintera are native to New Zealand. (wikipedia.org)
Makes2
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- Keble, concertato azotomycin, whenever fantasy's - weaner supersmelt.com during celexa makes me a zombie spermatocytal pseudowintera compels unelaborately anyone embryonating in addition buy savella generic real to my anthropometrical witworm. (supersmelt.com)
Tasmannia1
- Here we investigate tetrads and pollen features of 20 different Winteraceae species, most of them belonging to the early-diverging generic lineages Tasmannia, Drimysand Pseudowintera. (fridgeirgrimsson.com)
Trees and shrubs1
- Pseudowintera is a genus of woody evergreen flowering trees and shrubs, part of family Winteraceae. (wikipedia.org)
Polygodial1
- The hot, spicy flavour of Pseudowintera colarata is due to the polygodial compounds in its leaves which contain antifungal properties that can suppress Candida albicans . (womanmagazine.co.nz)
Generic1
- An buy azilsartan medoxomil from canada Perfluoroisobutylene this scaridae antimedievally tapestry either Nagpur cheapest buy minipress generic side effect amid fissiped gelded until an pseudowintera. (cambrilvending.com)