lenticel


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to lenticel: leaf scar, Terminal bud, bud scale scar
Lenticelclick for a larger image
Fig. 207 Lenticel . Transverse section of the outer stem.

lenticel

a small pore found on the surface of stems and roots in higher plants. Lenticels usually arise below the STOMATA of the original epidermis, where loose packing tissue becomes waterproofed with SUBERIN, leaving large intercellular spaces through which gas exchange can take place. Lenticels are surrounded by a CORK layer.
References in periodicals archive ?
In overcoming this, P capitata was further furnished with lenticels on the leaf's midrib (Figure 4).
The fruit quality attributes used in this comparative impact analysis study included skin color, firmness, skin browning, sap burn, rots, physical damage and lenticels spots.
The opening of the lenticels is so small that air can enter, but not water.
Browning, surface pitting and lenticel discoloration of fruits were used as indicators for chilling injury.
Unsightly rotted or discolored lenticel tissues render the potatoes unmarketable, and occasionally shipments of California potatoes are dumped.
The main physiological disorders of apple orchards are lack of calcium, bitter pit, lenticels breakdown, jonathan spot, internal breakdown, watercore and stem-end splitting (CURRY et al., 2008; AMARANTE, et al., 2009; AMARANTE et al., 2010).
Fruits were analyzed for soluble solids content, titratable acidity, starch pattern index, flesh firmness, skin background color, and incidence of russeting, bitter pit and lenticels blotch pit, and for N, K, Ca and Mg, at harvest and after cold storage.
Some flood-tolerant species absorb oxygen through stomata or lenticels and transport it to the roots, from which it diffuses to the rhizosphere (Kozlowski & Pallardy, 1997b).
Fruits were analyzed for total soluble solids (TSS; Brix), titratable acidity (TEA; meq of malic acid [100mL.sup.-1]), starch pattern index (scale of 1 to 5, where 1 indicates the least and 5 the most starch to sugar conversion), flesh firmness (N), skin background color (scale of 1 to 8, corresponding to dark-green and yellow-green, respectively), severity of russeting ([cm.sup.2] [fruit.sup.-1]), incidence (%) of bitter pit and lenticels blotch pit, and concentration of N, K, Ca and Mg.
Among the adaptations that fit tupelos to their wet substrate are protruding underwater lenticels and proliferation of new roots (Hook et al., 1970a; Hook, Langdon et al., 1970).
Lenticel A small "corky" area on a stem that allows gas exchange; may be vertical or horizontal to the apex.
The peel should be perfect until reaching the final consumer, which is the biggest challenge in the export of this fruit, since it is fragile and in the lenticels usually shelter spores of Colletotrichum gloeosporioides Penz, causal agent of anthracnose as well as other pathogens.