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Topics referred to by the same term
Micropyle may refer to: Micropyle (botany) a minute opening in the integument of an ovule of a seed plant. Micropyle (zoology), a differentiated area of
Micropyle
Female plant reproductive structure
provides nourishment to the ovule. On the basis of the relative position of micropyle, body of the ovule, chalaza and funicle, there are six types of ovules
Ovule
A micropyle is a pore in the membrane covering the ovum, through which a sperm enters. Micropyles are also found in sporozoites of some digenetic microorganisms
Micropyle_(zoology)
Structure inside bird eggs and plant ovules
uniform texture. In plant ovules, the chalaza is located opposite the micropyle opening of the integuments. It is the tissue where the integuments and
Chalaza
Larva of a butterfly or moth
Anatomy - (1) Egg m-micropyle (2) Head o-ocelli s-spiracle (3) s-spiracle m-malphigian tubules g-silk gland (4) a - antenna l-labrum o- ocelli k mandible
Caterpillar
Clade of seed plants that produce flowers
from the stigma, down the style and into the ovary. When it reaches the micropyle of the ovule, it digests its way into one of the synergids, releasing
Flowering_plant
Reproductive structure in plants
and main region of the ovule where the megagametophyte develops. The micropyle, a small pore or opening in the apex of the integument of the ovule where
Seed
Flowering plant reproductive part
plants, near the micropyle of each ovule. It is an outgrowth of the placenta, important in nourishing and guiding pollen tubes to the micropyle. The ovary of
Ovary_(botany)
Order of insects including moths and butterflies
coating of wax, which prevents the egg from drying out. Each egg has micropyles, tiny funnel-shaped openings at one end, to allow sperm to enter and fertilize
Lepidoptera
Complex fertilization mechanism of flowering plants
The tip of the pollen tube then enters the ovary by penetrating the micropyle opening in the ovule, and releases two sperm into the embryonic sac (megagametophyte)
Double_fertilization
Extinct order of seed plants
seed is tapered and opens through a thin and often extended micropyle. A long, narrow micropyle extending out of the seed is superficially similar to the
Bennettitales
thereby forming a network. anatropous (of an ovule) Inverted so that the micropyle faces the placenta (this is the most common ovule orientation in flowering
Glossary_of_botanical_terms
Species of plant in the palm family
millimetres (1⁄8 inch) thick and has three distinctive germination pores (micropyles) on the distal end. Two of the pores are plugged (the "eyes"), while one
Coconut
Species of banana native to Southeast Asia
in shape and very hard. The tiny embryo is located at the end of the micropyle. Each seed of M. acuminata typically produces around four times its size
Musa_acuminata
Radicle forms the future root
embryonic axis in the seed. The radicle emerges from a seed through the micropyle. The emergence of the radicle is either the end or terminal part (2nd
Radicle
Group of eudicots known as core eudicots
anthers, leaves with stipules, the endosperm with nuclear formation, and a micropyle that forms from the outer integument or both integuments. Several putative
Pentapetalae
Clade of non-flowering, naked-seeded vascular plants
ovule through a microscopic gap in the ovule coat (integument) called the micropyle. The pollen grains mature further inside the ovule and produce sperm cells
Gymnosperm
Legume grown for its edible bean
black, brown, buff, gray and yellow) and at one end of the hilum is the micropyle, or small opening in the seed coat which can allow the absorption of water
Soybean
Female reproductive cell
just eight cells inside the ovule. The gametophyte cell closest to the micropyle opening of the ovule develops into the egg cell. Upon pollination, a pollen
Egg_cell
Process of formation of megaspore mother cell (MMC) is called megasporogenesis
micropylar end are composed of an egg cell, two synergid cells, and the micropyle, an opening that allows the pollen tube to enter the structure. The nuclei
Megagametogenesis
Subfamily of cacti
surrounding a campylotropous ovule (inverted and curved, such that the micropyle almost meets the funiculus). Other prominent morphological characters
Opuntioideae
Extinct genus of carnivorous plants
structure is simple. Palaeoaldrovanda does not show a clearly pronounced micropyle or chalaza. [...] Our new interpretation of Palaeoaldrovanda significantly
Palaeoaldrovanda
Genus of plants indigenous to Australia
taste as good, but many people enjoy eating it uncooked. It has an open micropyle (hole in the shell), which may let in fungal spores. The crack-out percentage
Macadamia
Biological process occurring in plants
gametes are held within the carpel. After entering an ovule through the micropyle, one male nucleus fuses with the polar bodies to produce the endosperm
Pollination
Natural covering in biology
or more layers of cells. The integument is perforated by a pore, the micropyle, through which the pollen tube can enter. It may develop into the testa
Integument
Union of opposite-sex gametes in sexual reproduction to form a zygote
pollen tube grows and penetrates the ovule through a tiny pore called a micropyle. The sperm are transferred from the pollen through the pollen tube to
Fertilisation
pyl- gate Greek πύλη (púlē), πυλών, πυλῶνος (pulṓn, pulōnos) apopyle, micropyle, propylaea, prosopyle, pylon, pyloric, pylorus, tetrapylon, Thermopylae
List of Greek and Latin roots in English/P–Z
List_of_Greek_and_Latin_roots_in_English/P–Z
Group of insects in the order Lepidoptera
egg contains a number of tiny funnel-shaped openings at one end, called micropyles; the purpose of these holes is to allow sperm to enter and fertilise the
Butterfly
Part of a flower
species, including Gasteria at least, the pollen tube is directed to the micropyle of the ovule by the style. VanDerZanden, Ann Marie (2019-01-07). "Reproductive
Style_(botany)
Order of flowering plants, mostly from tropics and subtropics
stipules are small or rarely absent. The micropyle has two openings and is therefore called a bistomal micropyle. Flowers with well-developed male and female
Celastrales
Grains containing the male gametophytes of seed plants
plants, pollen germinates in the pollen chamber, located beneath the micropyle, underneath the integuments of the ovule. A pollen tube is produced, which
Pollen
Extinct genus of seed-bearing plants
terminal, sessile, contiguous and orthotropous (straight, upright and with a micropyle at apex) ovules." The ovules are associated with leaves of either Baiera
Yimaia
Species of flowering plant
green ovaries; they lack a style. They contain a single ovule with the micropyle directed downwards. Staminate flowers are approximately 4 to 5 mm in diameter
Amborella
Female organs of a flower
which the pollen tube enters to deliver sperm to the egg is called the micropyle. The stalk attaching the ovule to the placenta is called the funiculus
Gynoecium
Reproductive bud of sponges
made by sclerocytes. The gemmule coat contains a structure called the micropyle that allows the gemmule to open during germination. Inside the gemmule
Gemmule
Species of moth
touched, via shaking and exposing these eyespots. The eggs have large micropyle rosettes that turn black as the fertile eggs develop. They are usually
Automeris_io
Species of moth
eggs, primary ribs terminate before they reach the cells surrounding micropyle, a small pore opening at the top of the egg. On the other hand, corn earworm
Chloridea_virescens
German zoologist (1822–1898)
in 1850. He examined sexual reproduction in insects and discovered the micropyle of the egg. He also examined parthenogenesis in bees. In 1851 he took
Rudolf_Leuckart
Subclade of green plants, also known as land plants
grain reaches an ovule, it enters via a microscopic gap in the coat, the micropyle. The tiny gametophyte inside the pollen grain then produces sperm cells
Embryophyte
Subtribe of cacti
They contain small to medium-sized seeds that vary in shape. Hilum and micropyle of seeds are fused to united. Appendages are usually absent. A strophic
Trichocereinae
Topics referred to by the same term
of the ovary of a flower that chemically guides the pollen tube to the micropyle Obturator ring, a part in early aircraft engines Obturating ring, used
Obturator
Order of flowering plants
layer (or integument) surrounding the ovule leaves a zigzag opening (or micropyle). Some cell clusters have bundles of long yellow crystals, mucilage cells
Crossosomatales
Species of fish
approximately 1.6 mm (0.063 in) in diameter. They are round and have a micropyle at the tip of a wart-like protrusion. They possess no obvious adhesiveness
Carinotetraodon_imitator
Moth species
by male sperm, which enters the eggs through a small pore called the micropyle. Females in the Edosa genus have an apomorphic trait in which their abdominal
Edosa_pyriata
Genus of flowering plants in family Liliaceae
is anatropous in orientation and has two integuments (bitegmic), the micropyle (opening) being formed from the inner integument, while the nucellus is
Fritillaria
pyl- gate Greek πύλη (púlē), πυλών, πυλῶνος (pulṓn, pulōnos) apopyle, micropyle, propylaea, prosopyle, pylon, pyloric, pylorus, tetrapylon, Thermopylae
List of Greek and Latin roots in English/P
List_of_Greek_and_Latin_roots_in_English/P
Tribe of cacti
adherent flower remnant. The small to large seeds are oval. The hilum and micropyle of the seeds are fused, one appendage is absent. In classifications before
Cereeae
ovule, where they gain access through a pore in the ovule's integument (micropyle), allowing fertilisation to occur. Once the ovule has been fertilised
Glossary_of_plant_morphology
Genus of orchids
pollination event, 30.6% of the tips of the pollen tubes started to enter the micropyles (i.e. entry points) of the ovules. Finally, 65 to 70 days after the pollination
Phalaenopsis
Species of moth
larger than the male. The egg is smooth, long oval, but laid with the micropyle at the top; light grey, dark-dotted, later pink with the dots deep red
Campaea_margaritata
Tribe of cacti
The small to medium-sized seeds are diverse in shape. The hilum and micropyle of the seeds are fused together, a strophiole is often present, and a
Notocacteae
Class of sponges
surviving harsh conditions. In a favorable situation, an opening called the micropyle appears and releases amoebocytes, which differentiate into cells of all
Demosponge
spore-covering layer, does not completely enclose the spore. A very small slit (micropyle) remains, meaning that the megasporangium is still exposed to the atmosphere
Evolutionary history of plants
Evolutionary_history_of_plants
Prehistoric plant order
leaving just the small distal opening in the integument known as the micropyle through which pollen passed. Nevertheless, most lyginopteridalean ovules
Lyginopteridales
External features of butterflies and moths
depressed and forms a small central cavity called micropyle through which the egg is fertilised. The micropyle is situated on top in eggs which are globular
External morphology of Lepidoptera
External_morphology_of_Lepidoptera
Genus of flowering plants
Cross-section through an ovary of C. hirtella. The ovules are anatropous with the micropyle facing outwards b Cross- and longitudinal section of a C. megarrhiza fruit
Coccinia
Adaptive mechanism in plants
[clarification needed] Other water-gap structures include carpellary micropyle, bixoid chalazal plug, imbibition lid and the suberised "stopper". In
Seed_dormancy
Family of flowering plants that includes the primroses
other families of Ericales, both layers form the opening at the top (the micropyle). As seeds develop, an endosperm grows around the embryo through free
Primulaceae
slightly wider head of the infertile type might prevent it from entering the micropyle of the egg. Diopsidae (stalk-eyed flies): several species have a long
Sperm_heteromorphism
Species of stick insect
cruciform micropylar plate is difficult to see because of the hairs. The micropyle is located in the lower angle of the cross formed from diagonal arms.
Haaniella_dehaanii
directional and collective migration of border cells aids in the formation of micropyle, a specialised passage through which the sperm enters during fertilisation
Border_cells_(Drosophila)
Species of cactus
them unusually large for seeds of the cactus family. The hilum and the micropyle of the seeds are united. The seed coat is almost smooth. The main part
Strophocactus_wittii
Extinct genus of plant
terminal seeds/ovules, which are surrounded by interseminal scales. The micropyle of the ovules varied from protruding above the cone to slightly sunken
Williamsonia_(plant)
Species of single-celled organism
23–43 μm x 17–23 μm, ovoid shape, having a double-layered wall with a micropyle in the narrower end. The infection status of an animal is evaluated by
Eimeria_bovis
Family of flowering plants
overflow from the embryo sac. The growth of an endosperm can force open the micropyle, so that the embryo develops out of the integument. 2) The development
Rhizophoraceae
Species of fish
year, and their eggs are relatively large, and adhesive with a single micropyle. Yet, what really begins the spawning process is the sexually dimorphic
Polypterus_bichir
Albania. Ni relatively abundant in some parts of the seed (mainly the micropyle). Ni 4000 Thlaspi ochroleucum Boiss. and Heldr. (Brassica) Distrib. Greece
Hyperaccumulators table – 2: Nickel
Hyperaccumulators_table_–_2:_Nickel
Species of orchid
germination process likely involves the absorption of water through the micropyle, triggering the initiation of growth. It has elongated pseudobulbs that
Cattleya_violacea
Protein family
involved in fertilisation by interacting with alpha-l-fucose residues on the micropyle of the eggshell. In human sperm, membrane-associated alpha-l-fucosidase
Glycoside_hydrolase_family_29
Tribe of cacti
glabrous. The medium-sized to large seeds are often wrinkled. The hilum and micropyle of the seeds are fused, an appendage is absent, and a mucous sheath is
Rebutiinae
Application of insect and other arthropod biology to forensics
plastron, as well as the morphology of the plastron in the area around the micropyle. The various measurements and observations when compared to standards
Forensic_entomology
Family of flowering plants
form a testa from the outer integument (bitegmic), inverted so that the micropyle faces the placenta (anatropous), with two or more cell layers between
Hernandiaceae
Species of parasitoid wasp
Within the apples, the eggs are inserted into the young seed through the micropyle when the apple is still small, with the larvae feeding on the kernel.
Torymus_druparum
Tubular structure to conduct male gametes of plants to the female gametes
that provide buoyancy in air currents. The grains are deposited in the micropyle of the ovule of a female cone or megastrobilus, where they mature for
Pollen_tube
Genus of cycads in the family Zamiaceae
axis-facing side of the thickened scales. The opening at the tip of the ovules (micropyle) is very small, leaving only a narrow opening on the Nucellus. The megaspore
Dioon
Species of flowering plant
the two synergid cells elongate into tubes which penetrate through the micropyle and grow about a third up the length of the style where they form haustoria
Quinchamalium
Genus of single-celled organisms
genus Pfeifferinella. The oocysts have no sporocysts. A distinct convex micropyle is usually present at one end of the oocyst. Within each oocyst there
Alveocystis
Species of single-celled organism
observed in a microscope as a colourless, single-layered wall with no micropyle with a size of 15–22 μm x 13–18 μm and having a subspherical, subovoid
Eimeria_zuernii
Botanical article by Robert Brown
chalaza to the integuments, which surround the nucellus except at the micropyle, through which the pollen tubes enter. David Mabberley describes this
Character and description of Kingia
Character_and_description_of_Kingia
Order of ray-finned fishes
dorsal gill arches and that in both groups the eggs have filaments on the micropyle, which enable the eggs to form a mass. This mass is brooded in the mouth
Apogonoidei
Genus of single-celled organisms
oocyst have 8-14 free sporozoites. A large oocyst residuum is present. The micropyle tends to be large. Wasielewski T (1904) Studien und Mikrophotogramme zur
Pfeifferinella
Japanese-born American scientist (1928–2023)
discovered calcium-dependent, chemotactic movement of spermatozoa into the micropyle through which the fertilizing spermatozoon enters the egg. This was the
Ryuzo_Yanagimachi
Genus of single-celled organisms
colour. The innermost layer is a dark black colour. Neither a residuum or micropyle is present in the oocyst. Sporocysts are 2 broad pear-shaped bodies with
Sivatoshella
Tribe of stick insects
circular and can be raised flat or slightly pointed in the middle. The micropyle is located between the two lower arms of a four-armed micropylar plate
Heteropterygini
Subfamily of fishes
which cover the half of the surface of each egg which is opposite the micropyle, these filaments are attached to the surface of the egg by a small loaf-like
Pseudochrominae
Genus of cycads in the family Zamiaceae
the beetles crawl around in female cones, a droplet at the tip of each micropyle (an opening into the ovule which will produce a seed) can capture a pollen
Zamia
Genus of plants
millimeters. When the cone is ripe, the megasporophylls separate. The micropyle exudes a drop of liquid that pulls the pollen capillary to the embryo
Stangeria
Genus of stick insects
diagonal cross-shaped micropylar plate. In the lower angle of which the micropyle is located. In many species, the surface of the eggs is rough and bristled
Haaniella
Species of butterfly
pronounced cells on the surface. Its color is white with a greenish tinge, the micropyle is green. Eggs hibernate with the already formed caterpillar inside. Caterpillars
Plebejidea_loewii
French botanist (1801–1876)
subsequent (1846) discovery of the entrance of the pollen-tube into the micropyle, fertilizing the female cell, which then develops into the embryo. Of
Adolphe-Théodore_Brongniart
Species of moth
are orange. The surface is covered with about 50 longitudinal ribs. The micropyle rosette is ten to eleven-leaves and surrounded by a large-mesh network
Aspitates_gilvaria
Species of stick insect
almost horizontally. The lid (operculum) is raised slightly conically. The micropyle is at the bottom between these arms. A year can pass before hatching.
Haaniella_gorochovi
Genus of single-celled organisms
from Brazil: (1) line drawing; (2) photomicrographs. Note the micropyle and micropyle cap (m/mc), nucleus (n), polar granule (pg), refractile body (rb)
Isospora
Species of stick insect
not reach the end of the egg capsule. A distinct midline runs from the micropyle backwards and reaches the posterior pole of the egg. The species is native
Eubulides_igorrote
Species of moth
birch (Betula), lime (Tilia), beech (Fagus). The oval egg is blunt at the micropyle end and has a strongly reticulated surface. It is pale green at first
Operophtera_fagata
Genus of insects
egg is usually in the form of a narrow slit, widest at the level of the micropyle. On either side of the micropylar plate is a row of more or less distinct
Cryptophyllium
Family of flowering plants
ovules will develop into a seed. A single, massive obturator may cover the micropyles of both ovules, or each ovule may have its own thin obturator. The megagametophyte
Phyllanthaceae
undivided at meiosis I to the spindle pole that lies in the direction of the micropyle. Since the embryo sac is then formed there with the oocyte, it thus receives
Non-random segregation of chromosomes
Non-random_segregation_of_chromosomes
Genus of insects
length of the egg and splits in a Y-shape narrow the lower pole. The micropyle can be seen at the vertex of the angle formed by the two lower arms. The
Theramenes_(insect)
Species of fish
pseudoplesiopines and anisochromines, the filaments form tight clusters near the micropyle. These differences show evolutionary changes within the family, although
Pictichromis_diadema
MICROPYLE
MICROPYLE
MICROPYLE
MICROPYLE
Girl/Female
Hindu, Indian, Tamil, Telugu
Beautiful
Girl/Female
American, British, English
Delight; Joy; Happiness
Girl/Female
Hindu
Of the ocean
Boy/Male
Irish
Foolish pride.
Boy/Male
Hindu
Tamil name means eligible, Good Man
Girl/Female
Hindu, Indian
Intellectual; Singing Bird
Boy/Male
Welsh
Legendary son of Gwydaawg Gwyr.
Female
English
English form of Greek Sibylla, SYBILLA means "prophetess."
Boy/Male
Tamil
Girl/Female
American, Australian, Chinese, Christian, French, Latin, Portuguese, Spanish
France; Place Name; From Lourdes
MICROPYLE
MICROPYLE
MICROPYLE
MICROPYLE
MICROPYLE
a.
Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.
n.
An opening in the outer coat of a seed, through which the fecundating pollen enters the ovule.
n.
An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted.