(n.) The inner envelope of a flower; the part which surrounds the organs of fructification, consisting of one or more leaves, called petals. It is usually distinguished from the calyx by the fineness of its texture and the gayness of its colors. See the Note under Blossom.
Example Sentences:
(1) Primin itself was obtained from Primula elatior and from the petals (corollas) of Primula obconica.
(2) This RNA is transcribed from CHI gene A and has a 0.3 kb 5' extension relative to the gene A transcript found in corolla tissue.
(3) A nearly full size cDNA clone, isolated from a corolla-specific expression library, was characterized by sequence analysis.
(4) They had been driving in an ordinary Toyota Corolla on the road between Puero Cabello and Valencia, the third biggest city in Venezuela.
(5) But Toyota suffered another blow tonight as US safety officials said they are investigating about 80 complaints of steering difficulties from drivers of 2009 and 2010 Corollas.
(6) "To that end, we will consider moving additional Corolla production back to North America over time."
(7) The Corolla was occupied by four members of the Hezb-e-Islami Gulbuddin [HIG] terrorist organisation [the al-Qaida-allied militia led by the former mujahideen leader and notorious warlord Gulbuddin Hekmatyar].
(8) It is considering a recall of the Corolla because of possible power-steering problems.
(9) We conclude that during corolla development transcriptional processes act coordinately on limb-specific genes to regulate their regional expression patterns, but act individually on these genes to define their cell specificities.
(10) Limb-specific mRNAs also accumulate preferentially within the unpigmented corolla limb region of Nicotiana sylvestris, a diploid progenitor of tobacco.
(11) One eyewitness said that a red Toyota Corolla had been seen driving at high speed in an apparent attempt to catch up.
(12) The two electricians, who have not been named, were travelling in a heavily armoured Rhino bus in the southern outskirts of the Afghan capital when the vehicle was rammed by a Toyota Corolla believed to have been carrying 700kg of explosives.
(13) The two electricians, who have not been named, were travelling in a heavily armoured Rhino bus in the western outskirts of the Afghan capital when the vehicle was rammed by a Toyota Corolla believed to have been carrying 700kg of explosives.
(14) The evaporative fuel emissions control units in models produced from 2006 to 2015 including the Prius, Auris compact hatchback and Corolla were prone to cracks, which could lead to fuel leaks over time, it said.
(15) Examples of the application of this program to vegetable drugs (corolla of Lavandula angustifolia Mill flowers) are given.
(16) "A [Toyota] Corolla car was parked in front of the Indian embassy.
(17) The attacker, who used an explosives-rigged Toyota Corolla, was a 22-year-old woman named Fatima, the group said in an email to the Associated Press.
(18) One class is represented equally in the unpigmented tube and pigmented limb regions of the corolla.
(19) In the filiform papillae the loops were generally arranged in a corolla-like pattern with the tertiary loops demonstrating a hair-pin shape.
(20) Because chiA encodes a functional CHI enzyme in flower petals of a popo line, we propose that the Po mutation is a mutation in the regulatory region of chiA abolishing chiA promoter activity in anthers but not in corollas.
Sepal
Definition:
(n.) A leaf or division of the calyx.
Example Sentences:
(1) In agamous-1, stamens to petals; in apetala2-1, sepals to leaves and petals to staminoid petals; in apetala3-1, petals to sepals and stamens to carpels; in pistillata-1, petals to sepals.
(2) The PR-1 class of proteins (biological function unknown) is located in sepal tissue.
(3) Sepal primordia then arise (stage 3) and grow to overlie the primordium (stage 4).
(4) In the families of flowering plants in which these organs occur, they are patterned with the sepals in the outermost whorl or whorls of the flower, with the petals next closest to the center, the stamens even closer to the center, and the carpels central.
(5) In flowers, expression was observed in sepals, anthers, and carpels, but not in petals.
(6) LAT52 mRNA is not detectable in pistils, sepals or non-reproductive tissues.
(7) Mutation of this gene (defA-1) causes homeotic transformation of petals into sepals and of stamina into carpels in flowers displaying the 'globifera' phenotype, as shown by cross sections and scanning electronmicroscopy of developing flowers.
(8) In ag mutants, the loss of AG function leads to the conversion of these organs to the perianth organs (petals and sepals).
(9) We found that AG RNA is present in the stamen and carpel primordia but is undetectable in sepal and petal primordia throughout early wild-type flower development, consistent with the mutant phenotype.
(10) New mutations at the APETALA2 locus, ap2-2, ap2-8 and ap2-9, cause homeotic conversions in the outer two whorls: sepals to carpels (or leaves) and petals to stamens.
(11) Comparative studies between two pea cultivars, one with a high incidence of seed transmission and one with none, showed that PSbMV infected the floral tissues (sepals, petals, anther and carpel) of both cultivars, but was not detected in ovules prior to fertilization.
(12) We also showed that both promoters can function independently and that the chiA PA1 promoter is expressed in limb (epidermal and parenchyma cells), tube (inner epidermal and parenchyma cells), seed (seed coat, endosperm, and embryo), sepal, leaf, and stem.
(13) The distribution of beta-glucuronidase activity in these transgenic plants is very similar to that of endogenous PAL2 transcripts in bean, with very high levels in petals; marked accumulation in anthers, stigmas, roots, and shoots; and low levels in sepals, ovaries, and leaves.
(14) Mutations in the APETALA3 (AP3) gene of A. thaliana result in homeotic transformations of petals to sepals and stamens to carpels.
(15) Its expression is greater than 50-fold higher in sepals and greater than 500-fold higher in the rest of the flower than in leaves or roots.
(16) Upon mutation of the gene, petals are transformed to sepals and stamens to carpels, indicating that deficiens is essential for the activation of genes required for petal and stamen formation.
(17) Transcripts are present in petals, stamens and pistil but are not detectable in sepals.
(18) However, PR-2 polypeptides were observed only in sepal tissue.
(19) AP2 is a floral homeotic gene that is necessary for the normal development of sepals and petals in floral whorls 1 and 2.
(20) The fbp2 gene is expressed in petals, stamen, carpels, and at a very low level in sepals but not in vegetative tissues.