Results 11 to 20 of about 64,372 (201)

Dynamic changes occur in the cell wall composition and related enzyme activities during flower development in Rosa damascena

open access: yesFrontiers in Plant Science, 2023
The flowering period of oil-bearing rose is short and many physiological processes occur during flower development. Changes in the cell wall composition and associated enzyme activities are important as they allow cells to divide, differentiate and grow.
Sercan Önder   +4 more
doaj   +1 more source

Petal grid diagrams of torus knots [PDF]

open access: yesJournal of Knot Theory and Its Ramifications 33 (2024) 2350099, 2023
A petal diagram of a knot is a projection with a single multi-crossing such that there are no nested loops. The petal number $p(K)$ of a knot $K$ is the minimum number of loops among all petal diagrams of $K$. Let $T_{n,s}$ denote the $(n,s)$-torus knot for relatively prime integers $2\le n
arxiv   +1 more source

Integration of Metabolome and Transcriptome Reveals the Relationship of Benzenoid–Phenylpropanoid Pigment and Aroma in Purple Tea Flowers

open access: yesFrontiers in Plant Science, 2021
Tea (Camellia sinensis) flowers are normally white, even though the leaves could be purple. We previously discovered a specific variety with purple leaves and flowers.
Xin Mei   +7 more
doaj   +1 more source

Redundant apodization for direct imaging of exoplanets 2: Application to island effects [PDF]

open access: yesA&A 666, A91 (2022), 2022
Telescope pupil fragmentation from spiders generates specific aberrations observed at various telescopes and expected on the large telescopes under construction. This so-called island effect induces differential pistons, tips and tilts on the pupil petals, deforming the instrumental PSF, and is one of the main limitations to the detection of exoplanets
arxiv   +1 more source

Antioxidant capacity and chemical composition of different parts of saffron flowers [PDF]

open access: yesJournal of Food and Bioprocess Engineering, 2021
Saffron is a spice derived from the flower of Crocus sativus L. The present study reports the antioxidant capacity and chemical compositions of various parts of saffron.
Akram Azghandi Fardaghi   +3 more
doaj  

Petal Senescence: New Concepts for Ageing Cells [PDF]

open access: yes, 2009
Senescence in flower petals can be regarded as a form of programmed cell death (PCD), being a process where cells or tissues are broken down in an orderly and predictable manner, whereby nutrients are re-used by other cells, tissues or plant parts.
Doorn, W.G., van, Woltering, E.J.
core   +6 more sources

Investigation of the dependences of the Vivaldi antenna with two curve radii in the electrodynamic modeling software package

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The aim of the study is to build and optimize a computer model of the antenna using software packages for electrodynamic modeling.Method. The study is based on dynamic modeling methods.Result. In this paper, the dependences of the width of the
S. A. Ibragimov
doaj   +1 more source

Petal development and elaboration

open access: yesJournal of Experimental Botany, 2022
Abstract Petals can be simple or elaborate, depending on whether they have complex basic structures and/or highly specialized epidermal modifications. It has been proposed that the independent origin and diversification of elaborate petals have promoted plant–animal interactions and, therefore, the evolutionary radiation of corresponding
Xuehao Fu   +6 more
openaire   +2 more sources

Petal Projections, Knot Colorings and Determinants [PDF]

open access: yesInvolve 15 (2022) 207-232, 2020
An \"{u}bercrossing diagram is a knot diagram with only one crossing that may involve more than two strands of the knot. Such a diagram without any nested loops is called a petal projection. Every knot has a petal projection from which the knot can be recovered using a permutation that represents strand heights.
arxiv   +1 more source

UPLC–MS/MS and Gene Expression Research to Distinguish the Colour Differences of Rhododendron liliiflorum H. Lév

open access: yesHorticulturae, 2023
Among ornamental plants, the colour of the petals is an important feature. However, the reason for the colour differences of Rhododendron liliiflorum remains unclear. To reveal the differences in the colour of R.
Jin Dai   +9 more
doaj   +1 more source

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