What's the difference between abscission and leaf?

Abscission


Definition:

  • (n.) The act or process of cutting off.
  • (n.) The state of being cut off.
  • (n.) A figure of speech employed when a speaker having begun to say a thing stops abruptly: thus, "He is a man of so much honor and candor, and of such generosity -- but I need say no more."

Example Sentences:

  • (1) Differences in posture were not associated with differences in abscissal intercepts in either Quad or Con.
  • (2) In leaves abscission is accompanied by increased occurrence of cellulase forms differing in isoelectric point (pI 6.5 and 9.5).
  • (3) The slopes and abscissal intercepts were significantly (P less than 0.05) different.
  • (4) The abscissal intercept was significantly different (P less than 0.025).
  • (5) I hope I may crave an indulgence to use your paper to put on public record that I was one of those opposed to this government's policy of abscission against the vulnerable.
  • (6) It decreased in cells which had completed nuclear migration and before abscission of the bud had occurred.
  • (7) An indirect immunohistochemical technique was developed using a rabbit anti-abscissic acid (ABA) serum and the soluble peroxidase-antiperoxidase (PAP) complex for the localization of endogenous ABA in the aerial parts of Chenopodium.
  • (8) We tested this method in tomato using two genomic intervals containing genes responsible for regulating pedicle abscission (jointless) and fruit ripening (non-ripening).
  • (9) These are associated with the cotyledon stage, the endogenous concentration of free abscisic acid, maturation (reserve accumulation), ovule abscission, and germination.
  • (10) Direct binding assays and results from immunological studies indicate that more binding protein is present in abscission zones of Phaseolus than in petioles; ethylene treatment increases binding site abundance in abscission zones.
  • (11) The major programs of gene expression during late embryogenesis are the muturation or reserve accumulation program and, after ovule abscission, the postabscission program that is composed largely of Lea and LeaA mRNAs that probably encode desiccation protectants.
  • (12) Maturation-stage embryos both terminate the maturation program and induce the postabscission program after excision and culture, just as they do later in the plant after ovule abscission.
  • (13) From this study we have got the conclusion that elective renal-sparing excision of the tumor (with macro-micro examination of the abscission surfaces) should be considered as a curative treatment in the case of low stage single tumors smaller than 7 cm, peripherally located in renal cortex, with unbroken pseudocapsule.
  • (14) The occurrence in the cytoplasm around the proplastid of bodies not connected to the proplastid, but identical in structure to the evaginations and carrying a membranous tail suggests that the evaginations are released by abscission of the channel close to the surface of the parent body.
  • (15) The organisms used in assays were: Coleus explants (leaf abscission); turnip (germination); pea (growth inhibition and Hg uptake); a planarian (regeneration); the brineshrimp (excystment, phototaxy); the mealworm larva Tenebrio (metamorphosis) and the fish "tilapia" (survival, Hg uptake).
  • (16) However, tumor enucleation, including examination of the abscission surfaces by immediate per operative section should be considered as a curative treatment.
  • (17) A northern analysis carried out with a cDNA coding for tomato endopolygalacturonase shows hybridization only with one endopolygalacturonase mRNA form in the fruit abscission zone.
  • (18) Osteoclastic erosion across an abscission line between the dead bone of the antler and the living bone of the pedicle was found to be responsible for the separation of the 2.
  • (19) We demonstrate here the specific and saturable labeling of a population of larval receptors with the GABA analog beta-(p-chlorophenyl)-[3H]GABA ([3H]baclofen); identification of these labeled receptors with those controlling metamorphosis is suggested by four independent criteria: the effectiveness of GABA and its close structural analogs to induce metamorphosis is closely correlated with the effectiveness of these compounds to compete for binding to this receptor; the natural inducer purified from the recruiting algae competes for binding to this receptor; (-)-[3H]baclofen specifically bound to the receptors is shed from the larvae after approximately 20 hr, at the time corresponding to the metamorphic abscission and shedding of sensory cilia and other structures from the larvae; and the availability of the receptors for labeling and the ability of the larvae to respond to GABA and GABA analogs can be down-regulated in parallel by habituation of the larvae early in their development.
  • (20) The apparent threshold for AVP release (defined as the abscissal intercept of the regression line relating plasma AVP [PAVP] to Posmol) was also decreased significantly throughout gestation, as was the osmotic threshold for thirst (derived from analogue scales relating desire to drink to Posmol).

Leaf


Definition:

  • (n.) A colored, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage.
  • (n.) A special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril.
  • (n.) Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as : (a) A part of a book or folded sheet containing two pages upon its opposite sides. (b) A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc. (c) The movable side of a table. (d) A very thin plate; as, gold leaf. (e) A portion of fat lying in a separate fold or layer. (f) One of the teeth of a pinion, especially when small.
  • (v. i.) To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May.

Example Sentences:

  • (1) The dumplings could also be served pan-fried in browned butter and tossed with a bitter leaf salad and fresh sheep's cheese for a lighter, but equally delicious option.
  • (2) Subsequently the plant protein was partially purified from leaf extract.
  • (3) In autumn, leaf-heaps composted themselves on sunken patios, and were shovelled up by irritated owners of basement flats.
  • (4) Isolated nuclei from green leaf tissue of tomato plants infected with potato spindle tuber viroid (PSTVd) were bound to microscope slides, fixed with formaldehyde and hybridized with biotinylated transcripts of cloned PSTVd cDNA.
  • (5) The nuclear membrane was highly deformed with a leaf-like profile in cross-section, possibly due to an interaction with the rod-like, condensed chromosomes.
  • (6) The mass of glycolic acid recovered from sunflower leaf tissue was proportional to the amount of tissue extracted.
  • (7) cDNA clones of potato virus X (PVXcp strain), potato virus Y (PVYo strain), potato leaf roll virus (PLRV) and potato spindle tuber viroid (PSTV) were used separately or combined for the detection of the corresponding RNAs in extracts of infected plants.
  • (8) Positive cDNA clones isolated from both a pea leaf and embryo lambda gt11 expression library using an antibody raised against the purified lipoamide dehydrogenase proved to be the product of a single gene.
  • (9) Betel leaf extract at the dose levels used in the present study did not affect the body weight gain among rats.
  • (10) Poison oak, ivy, and sumac dermatitis is a T-cell-mediated reaction against urushiol, the oil found in the leaf of the plants.
  • (11) Leaf TBC was usually third while fiber had the least TBC.
  • (12) Using this estimate, the pure Photosystem I emission spectrum was subtracted from the measured emission spectrum of a flashed leaf to give an emission spectrum representative of pure Photosystem II fluorescence at -196 degrees C. Emission spectra were also measured on flashed leaves which had been illuminated for several hours in continuous light.
  • (13) The effect of 50% methanolic extract (U-ext) from Bearberry leaf on immuno-inflammation was studied by contact dermatitis caused by picryl chloride (PC-CD) in mice.
  • (14) Several antisera from rabbits immunized with tobacco smoke components reacted by immunoprecipitation with tobacco smoke or leaf antigens.
  • (15) DNP treatment reduced ion absorption by leaf tissue.
  • (16) Instead, cell divisions are gradually restricted to the base of the leaf with localized sites of increased division at the preligule region.
  • (17) In the leaf-nosed bat, Macrotus californicus, a 4.5-month period of delayed early embryogenesis (October-March) precedes a 3.5-month period of normal embryogenesis (March-June).
  • (18) Plastic responses in leaf form resulting from ontogenetic or external influences are initiated very early in primordial development and are brought about by effects on the rate and direction of cell division and expansion in different regions of the primordium.
  • (19) Northern blot analysis of infected leaf tissue extracts revealed the presence of an oligomeric series of plus RNAs (of monomer size and greater) but minus RNAs were present only as high molecular weight species of heterogeneous size.
  • (20) And, hey, until Friday morning, most surveillance reform advocates were worried about the Senate ramming through the currently neutered version of the USA Freedom Act as its fig leaf of reform, before going back to business as usual and proposing bills that will give the NSA more power – not less.

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