Cucurbita (Squash) Plant Anatomy James Craig. Red Warty Thing Strawberry BACKGROUND: Herbatious...
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Transcript of Cucurbita (Squash) Plant Anatomy James Craig. Red Warty Thing Strawberry BACKGROUND: Herbatious...
Cucurbita (Squash)
Plant AnatomyJames Craig
Red Warty Thing
Strawberry
BACKGROUND:
Herbatious dicotyledon
Appears to be one of the first domesticated species. The oldest remains have been found in Mexico, 8750 BC
Brought to Europe in the 1500's by Spanish and French Explorers.
Thousands of varieties of squashBlue Hubbard
Chirimen
Galeux d'Eysines
Black Futsu
Patisson Strie
http://www.felcopruners.net/catalog.0.html3.0.html
Primary VeinSecondary Vein
Tertiary Vein
Leaf:DorsiventralNet Venation pattern2 layers of palisade cells
Spongy MesophyllPalisade Cells
Vein
Cotyledon
Adaxial
Abaxial
Stomata
Cotyledon Leaf Peels
Wavy/Crenulated Cells
Stomata: Raised Anomocytic (no subsidiary cells)
Paradermal section
Epidermis
Palisade Cells
Open SystemBicollateralVery small amount of 2ndary growth which is limited to the vascular bundle2ndary Phloem occurs only in the external phloem
Stem Vascular Bundle: 10X (Toluidine Blue-O)
Internal Phloem
Perivascular Fibers
Parenchyma
Xylem
Darkly Stained Companion Cells
External Phloem
Vascular Cambium
Stem 2ndary growth
10x
Angular Collenchyma
Epidermis
Perivascular Fibers
Transverse Stem: 20X Toluidine Blue-O
Stem Longitudinal Section: 10x
Sieve Plates
Xylem
Phloem
Toluidine Blue-O Methylene Blue
Sieve Plate
anubis.ru.ac.za/virtualplant/anatomy/prac1a.htm
Stem To Root Transition: Toluidine Blue-O
4x 4x 4x
4x 10x 10x
4x 10x10x
Pith cavity
Tetrarch
Adventitious Root
Vascular Vein
Toluidine Blue-O 4x
Root Hair Zone
Differentiation Zone
4x4x
Root Cap
Central Cylinder
Cortex
Quiescent Center
Apical Initials
10x Wholemount
Rhizodermis
Protoderm
Apical Meristem 20X
Leaf Primordia approximately 10 total
Apical Meristem
Multicellular Uniseriate Trichomes
Secretory Trichomes
Stalked Capitate Head
Capitate Head
Oil Droplet
Pollen Grains 20x (Toluidine Blue-O)
Apertures
Exine
Flower Multicellular Uniseriate Trichomes(Toluidine Blue-O)
Yellow/Orange Pigment
20x
20x
10x
Cucurbitis Fruit Cross-section 4X (Toluidine Blue-O)
Primary Vascular Bundles
20x
Lenticel
Periderm
Filling Tissue Phellogen
Bibliography
Exercise 1: the stem - variation in structure. anubis.ru.ac.za/virtualplant/anatomy/prac1a.htm
Harvest Moon Farms & Seed Company. http://www.felcopruners.net/catalog.0.html3.0.html
Cucurbitis. http://www.hort.purdue.edu/newcrop/1492/cucurbits.html
I. Agbagwa and B. Ndukwu. The value of morpho-anatomical features in the systematics of Cucurbita L. (Cucurbitaceae) species in Nigeria. African Journal of Biotechnology. Vol. 3 pp. 541-546, October 2004
Katherine Esau. Plant Anatomy. John Wiley & Sons, Inc, New York. 1965
Richard Crang & Andry Vassilyev. Plant Anatomy. McGraw Hill Companies Inc. 2003