What's the difference between petiole and stipule?

Petiole


Definition:

  • (n.) A leafstalk; the footstalk of a leaf, connecting the blade with the stem. See Illust. of Leaf.
  • (n.) A stalk or peduncle.

Example Sentences:

  • (1) The results indicate that the anatomical counter-current heat exchanger is reduced or eliminated during heat stress by 'chopping' the blood flow into pulses, and the blood pulses are shunted through the petiole alternately by way of a switch mechanism.
  • (2) Young leaf tissues had much higher levels of glucosyltransferase activity than the petioles and internodes.
  • (3) The transcript is detectable in stem and petiole, but not in leaves.
  • (4) The epiglottic petiole, the false cords, the true cords, and one arytenoid are also excised, along with the paraglottic space.
  • (5) The narrow passage within the petiole between thorax and abdomen is anatomically constructed so that counter-current exchange should retain heat in the thorax despite blood flow to and from the cool abdomen.
  • (6) Linamarase (EC 3.2.1.21) was purified from cassava petiole, stem, and root cortex by ammonium sulfate precipitation, column chromatography on Sepharose 6B, and chromatofocusing.
  • (7) The tissue- and organ-specific overproduction of cytokinins produced a number of morphological and physiological changes, including stunting, loss of apical dominance, reduction in root initiation and growth, either acceleration or prolonged delayed senescence in leaves depending on the growth conditions, adventitious shoot formation from unwounded leaf veins and petioles, altered nutrient distribution, and abnormal tissue development in stems.
  • (8) The major tissue features of basal petioles and the external characteristics of the crude drugs have also been given.
  • (9) The occurrence of dispersal or nondispersal of P-protein bodies can be related to the position of the sieve elements in the stem or petiole.
  • (10) Many characters of leaf (hair, hypodermal cells, palisade layers, intercellular space, distinction between spongy and palisade parenchyma, "palisade ratio", distribution of collenchyma and sclerenchyma, presence or absence of starch grains, calcium oxalate crystals, number, shape and arrangement of bundles of petiole) are useful distinguishing characters.
  • (11) In this paper, the Ainsliaea derivatives are studied to clarify the botanical origins; comparing anatomically with leaves and petioles of thirteen Ainsliaea species growing wildly in Sichuan prov.
  • (12) Glucan synthesis was achieved with an in vitro membrane fraction from the petioles of celery (Apium graveolens).
  • (13) Ethylene was found to have no influence on auxin transport in hypocotyls of Helianthus annuus and Phaseolus vulgaris; coleoptiles of Zea mays; petiole sections of Gossypium hirsutum, Phaseolus vulgaris, and Coleus blumei.
  • (14) GAST1 RNA is detectable in untreated leaves, stems, petioles and flowers, but not in roots.
  • (15) Their expression is also induced in leaf-petiole explants by high concentrations of sucrose.
  • (16) An uneven distribution of the coat protein antigens of beet necrotic yellow vein (BNYVV) and beet soil-borne (BSBV) viruses in tap roots of naturally infected sugarbeets and of BNYVV coat protein antigen in leaves and petioles of mechanically inoculated sugarbeet seedlings was detected by means of tissue print-immunoblotting.
  • (17) Arabidopsis plants stimulated by touch develop shorter petioles and bolts.
  • (18) This HC protein was found in leaf blade and vein tissue but not in the petiole of leaves.
  • (19) Regarding this new technique, the fibula works as a petiolated well vascular bone chip which bridges the joint.
  • (20) Raphides in petioles of Xanthosoma sagittifolium are needlelike crystals about 50 micrometers long.

Stipule


Definition:

  • (n.) An appendage at the base of petioles or leaves, usually somewhat resembling a small leaf in texture and appearance.

Example Sentences:

  • (1) In the controlled wound care group, only three ulcers in three patients achieved complete healing; the remaining 24 ulcers in 20 patients failed to achieve even 50% healing in the stipulated 3-month period.
  • (2) Under the stipulation, cultivators must grow the drug indoors in a secure facility.
  • (3) An increase amount of proinsulin-like component in the blood serum stipulates possibly a more prolonged period of starvation before the occurrence of hypoglycemia, and a less pronounced picture of hypoglycemia in such patients in comparison with the patients whose tumours were capable of splitting HA similarly to the normal islands of Langerhans.
  • (4) Despite the stipulation, though, only 55% of trust-funded research papers are open access.
  • (5) Significantly, the one thing that is making him worry is the Globe's stipulation that no English should be used – something that takes little account of how in India language itself has become globalised, along with so much else.
  • (6) The attendant reflux gastritis is stipulated by reflux of the intestinal contents into the gastric lumen.
  • (7) Comparisons with the previous results of the author obtained in other mammal orders, demonstrated quantative changebility--plasticity of corresponding truncal auditory, optical and vesitbular formations in response to ecologically stipulated changes of leading afferentation in different mammals.
  • (8) The main one being that governments actually stick to their targets which they stipulated in terms of implementing policy to move towards a two degree limit in global warming by 2050,” said Wilkins.
  • (9) (2) The tendency to seclude on admission suggests failure to follow the legal stipulation that less restrictive measures be employed first.
  • (10) The procedure to be adopted by the second veterinary-surgeon inspector, however, has not been stipulated.
  • (11) This phenomenon is probably stipulated by the increase of the transcription activity and formation of 45-pre rRNA, life of RNA.
  • (12) We have earlier proposed a molecular mechanism for the translocation of hydrophilic proteins across membranes that accounts for the experimental facts and meets the restrictions that we stipulate for such a mechanism.
  • (13) In the theory of psychopathology (e.g., implicit in DSM-III), general descriptors of the person (i.e., demographic and cultural) play a comparatively minor role in the stipulation of the manifestations of psychiatric illness.
  • (14) The current rules governing eurozone bailouts stipulate that a government has to request help and that the money may only be channelled via governments – increasing the national debt burden.
  • (15) The Law stipulates that each manager of an establishment with 50 or more workers is requested to appoint an OHP from among qualified physicians.
  • (16) In the UK, the law stipulates that people should use only "reasonable force" as appropriate to the situation, and to prevent a dangerous situation from escalating.
  • (17) A rental contract can stipulate that tenants ask a landlord before switching energy supplier, but it can't refuse permission to switch.
  • (18) The curative effects were up to the standards stipulated by the National Federation of Disabled Persons.
  • (19) Let us stipulate at the start that whether or not to build the pipeline is a decision with profound physical consequences.
  • (20) Buchanan said reserve margins for generation capacity were set to fall from 14% to just 5% within three years, though he played down the threat of power cuts to consumers: households are less likely to be affected by capacity shortages than energy-intensive businesses, many of which have contracts that stipulate their supply can be cut at times of peak demand to free up generating capacity elsewhere.