(1) Therefore, lg1 mutant sectors not only fail to induce ligule and auricle, but are also disrupting some form of intercellular communication that is necessary for the normally coordinated development of the ligular region.
(2) The ligule and auricles separate the blade and sheath of normal maize leaves and are absent in liguleless-1 (lg1) mutant leaves.
(3) The Kn1-O mutation is characterized by outpocketings of tissue along lateral veins of the maize leaf and by displacement of ligule tissue from the junction of the blade and sheath into the blade.
(4) To establish which inner leaf layer was required for formation of knots and ectopic ligule we used a closely linked albino mutation to mark X-ray-induced clonal sectors of wild type (kn) tissue in Kn1 plants.
(5) Wild-type internal tissue in direct contact with lg1 epidermis appears able to induce the mutant epidermis to form a rudimentary ligule.
(6) The results indicate that the lg1 gene acts tissue specifically in an early step of ligule and auricle initiation.
(7) This establishes a distinct band of cells, from which the ligule arises via periclinal divisions.
(8) We also show that the ectopic ligule in Kn1 has contributions from both the adaxial epidermal and adaxial mesophyll layer.
(9) The anticlinal divisions preceding ligule formation are altered in the mutant; therefore, the gene acts early in development, before the periclinal divisions, and possibly during basipetal vascularization.
(10) During the second stage, ligule and auricle form, blade grows more rapidly than sheath, divisions in the blade become exclusively transverse in orientation, and differentiation begins.
(11) This pattern is particularly apparent in developing adult leaves on older lg1 plants, in which sporadic ligule vestiges form.
(12) Each mutant alters the position of the ligule boundary.
(13) In a normal maize leaf, a ligule and auricles separate the blade and sheath.
(14) 14), we conclude that the information carried by the Lg1+ gene product acts earlier in development than formation of the ligule proper.
(15) Mutants homozygous for the recessive liguleless-1 (lg1) allele exhibit loss of normal ligule and auricle.
(16) The ligule, a fringe normally found at the junction of leaf blade and sheath, is often displaced and perpendicular to its normal position.
(17) In genetically mosaic leaves, when an lg1 mutant sector interrupts the normal ligule, the ligule is often displaced basipetally on the marginal side of the sector.
(18) The maize leaf is composed of a blade and a sheath, which are separated at the ligular region by a ligule and an auricle.
(19) The recessive lg1 mutation prevents formation of ligules and auricles during leaf development.
(20) Second, the dominant mutants all move the ligule boundary in the same direction.
Strap
Definition:
(n.) A long, narrow, pliable strip of leather, cloth, or the like; specifically, a strip of thick leather used in flogging.
(n.) Something made of such a strip, or of a part of one, or a combination of two or more for a particular use; as, a boot strap, shawl strap, stirrup strap.
(n.) A piece of leather, or strip of wood covered with a suitable material, for sharpening a razor; a strop.
(n.) A narrow strip of anything, as of iron or brass.
(n.) A band, plate, or loop of metal for clasping and holding timbers or parts of a machine.
(n.) A piece of rope or metal passing around a block and used for fastening it to anything.
(n.) The flat part of the corolla in ligulate florets, as those of the white circle in the daisy.
(n.) The leaf, exclusive of its sheath, in some grasses.
(n.) A shoulder strap. See under Shoulder.
(v. t.) To beat or chastise with a strap.
(v. t.) To fasten or bind with a strap.
(v. t.) To sharpen by rubbing on a strap, or strop; as, to strap a razor.
Example Sentences:
(1) A definite correlation was established between the disease and the character of work and specificity of the working postures: a long stay in a bent position aggravated by the pressure of the apron strap weighing 8-10 kg on the lumbar part of the spine.
(2) The surest way for either side to capture the mood of a cash-strapped country would be to give ground on those of their demands which have least merit.
(3) Tragedy was averted because there was a little delay as the prayers did not commence in earnest and the bomb strapped to the body of the girl went off and killed her,” he added.
(4) The cell shape varied greatly and included dendritic, stellated and strap-shaped forms as well as multinucleated giant cells, similar to those of juvenile melanomatas.
(5) It's hard to imagine a more masculine character than Thor, who is based on the god of thunder of Norse myth: he's the strapping, hammer-wielding son of Odin who, more often than not, sports a beard and likes nothing better than smacking frost giants.
(6) To be effective, strapping must adhere to the entire abdominal wall rather than to the edges of the incision; it must also be permeable to body fluids and well tolerated.
(7) The last time I visited they were rollerblading and after plenty of assistance managing the straps and buckles on the hefty skates, I took to the floor.
(8) A single anatomic unit is rebuilt, transferring a strong new muscle strap with ideal supporting vectors and leaving scars in natural creases.
(9) Rare is the interview that concludes with the subject pinging one’s bra strap.
(10) The City is most focused on the investigation begun in April 2009 into the bank before it was rescued by the taxpayer following the takeover of ABN Amro, which left it crippled with bad debts and strapped for cash after paying too much for the bank just as the credit crunch began.
(11) The cash-strapped HMV retail chain clinched a deal on Friday to sell its Waterstone's bookshops to the Russian billionaire Alexander Mamut for £53m.
(12) They believed the film strips strapped around his forearm, which they called a sleeve, would stimulate his muscles to make those movements a physical reality.
(13) It’s easy money for cash-strapped African treasuries.
(14) These eventrations are enormous in Africa because the post-partum women do not make active movements to develop again the abdominal strap.
(15) Two hundred consecutive patients with arthrographically verified rupture of one or both of the lateral ankle ligaments were allocated to treatment with either an operation and a walking cast, walking cast alone, or strapping with an inelastic tape - all for 5 weeks.
(16) The dermal-subdermal plexus is continuous across the midline and this contralateral pathway is supplied chiefly from branches of the superior thyroid artery, facial artery, and myocutaneous perforators of the strap muscles.
(17) He now faces an even harder task of selling his economic policies to a doubting and cash-strapped nation when his taxman in chief, the man responsible for fiscal "justice", was hiding a stack of cash from the tax authorities and brazenly lying about it.
(18) The extra cost of the deployment is estimated at $35bn, at a time when the US is strapped for cash because of the recession.
(19) The backpack was held snugly in place by shoulder and body straps.
(20) Ever since I first strapped a radio to my bag, people have been warning me that the cycle courier is an endangered species.