Transcript Document 7745819

Lilac
Syringa vulgaris
Sarah Jones
2005
Popular ornamental shrub
•Originated in Eastern Europe, Turkey
•Hundreds of varieties
•Similar species found throughout Far East
•~$16 million in sales/year (1997)
•~2.4 million plants sold/year (1997)
•www.nass.usda.gov
Popular fragrance oil
www.gardenersnet.com/lilac.htm
1° VEIN
AREOLES
2° VEIN
epidermal peel, abaxial, toluidine blue, 4x
LEAVES
3° VEIN
PHLOEM in 1° vein
SIEVE PLATES
STOMATAL
PORE & GUARD
SIEVE AREAS
CELLS
epidermal peel, abaxial side, 20x
SIEVE TUBE ELEMENTS
CUTICULAR
RIDGES
cement replica, adaxial, 20x
STOMATA, GUARD CELLS
Fewer stomata on upper surface than lower
Anomocytic subsidiary cell pattern
cement replica, abaxial, 20x
epidermal peel, adaxial side, 40x
TRICHOMES
BASE OF
TRICHOME
(stalked, capitate)
epidermal peel, abaxial, 40x
HEAD
STALK
leaf XS, toluidine blue, 20x
EPIDERMIS
ADAXIAL
SURFACE
PALISADE MESOPHYLL
TRICHOME
SPONGY
MESOPHYLL
EPIDERMIS
ABAXIAL
SURFACE
leaf XS, toluidine blue, 20x
TRICHOME
ADAXIAL SURFACE
PHLOEM
SCLERENCHYMA
XYLEM
ABAXIAL SURFACE
COLLENCHYMA
EPIDERMIS
leaf XS, toluidine blue, 20x
LS of leaf bud, 10x
LEAF PRIMORDIA
LS of leaf bud, 4x
MERISTEMATIC REGION
TRICHOMES on
developing leaves
www.uwm.edu/Dept/Geography/npn/commonlilac/stages.html
XYLEM
PHLOEM
FIBERS
COLLENCHYMA
PITH
AIR BUBBLES
CORTEX
EPIDERMIS
1° stem XS, phloroglucinol, 4x
STEMS: PRIMARY GROWTH
PITH
XYLEM
FIBERS
PHLOEM
CORTEX
EPIDERMIS
1° stem XS, phloroglucinol, 10x
COLLENCHYMA
PITH
FIBERS
PHLOEM
EPIDERMIS
XYLEM
LEAF GAP
CORTEX
COLLENCHYMA
LEAF TRACE
1° stem XS, toluidine blue, 4x
PITH
FIBERS
PHLOEM
CORTEX
XYLEM
LEAF GAP
LEAF TRACE
1° stem XS, toluidine blue, 10x
2° stem XS, 4x
XYLEM & PHLOEM
FIBERS
PITH
CORTEX
COLLENCHYMA
BARK
STEMS:
SECONDARY GROWTH
2° stem XS, 20x
DIFFERENTIATING TISSUE
APICAL MERISTEM
LEAF PRIMORDIA
(older)
LEAF PRIMORDIUM
(younger)
LS shoot tip, 4x
QUIESCENT CENTER
MERISTEMATIC ZONE
GROUND TISSUE
VASCULAR TISSUE
ROOT CAP
RHIZODERMIS
ZONE OF ELONGATION
(with root hairs)
www.gardenpursuits.com/shrubs/lilac/
wonderblue2003.asp
ROOTS
whole mount of lateral root, 10x
VASCULAR
TISSUES
CORTEX
RHIZODERMIS (with
developing root hairs)
LS of elongation zone of root, toluidine blue, 10x
METAXYLEM
ROOT HAIR
PROTOXYLEM
(lignified)
TRIARCH
PERICYCLE
PHLOEM
RHIZODERMIS
CORTEX
lateral root XS, toluidine blue, 40x
lateral root XS, toluidine blue, 20x
RHIZODERMIS
VASCULAR
CONNECTION
ROOT CAP
CORTEX
PERICYCLE
MERISTEMATIC
REGION
LATERAL GROWTH
ROOT HAIRS
root XS, 10x
References
• lilacs.freeservers.com
– International Lilac Society
• spi.8m.com
– Select Plus Lilac Nursery
• www.vcbio.science.ru.nl/eng/image-gallery
• Garrison (1949) Origin and development of axillary buds:
Syringa vulgaris L. Am. J. Bot. 36:205-213
• Garrison and Wetmore (1961) Studies in shoot-tip
abortion: Syringa vulgaris. Am. J. Bot. 48:789-795
• Maksymowych et. al. (1983) Vascular bundles in petioles
of some herbaceous and woody dicotyledons. Am. J.
Bot. 70:1289-1296