Plant Physiology Slide Set SET NO.23 PHYSIOLOGY; 25 SLIDES

Plant Physiology slide set

Set No.23

Physiology; 25 slides

The slides in this set have been selected to demonstrate some unique physiological reactions of plants, especially those which are ecological in nature.

Abscission Layer

1) 15-15c Prunus cerasus (sour cherry, rosaceae); stem, ls for non-median leaf abscission.   This microscope slide shows the abscission layer in cherry petiole.

Adaption to Drought

2) 16-2 Ammophila breviligulata (beachgrass, gramineae); xerophytic leaf, cs.  This slide has cross sections of a curled leaf showing how water-loss is controlled.

Chlorosis and Hypertrophy

3) 3-62c Gymnosporangium juniperi-virginianae (apple rust); aecia on apple leaf, ls.  This slide shows chlorosis and hypertrophy caused by infection of an apple leaf by rust fungus.

Cicatrix formation

4) a-59  Mycosphaerelia fragariae; on fragaria, section.  This slide shows cicatrix formation, host reaction to infection of strawberry leaf by fungus.

Contractile Root

5) a-216-5 Botrychium; contractile root, ls.  This slide has root sections longitudinally to show corrugations of cortex and distortions of stele.

Digestion and Digestive Organs

6) 5- 6nnn Marchantia polymorpha; sporophytes, ls for general structure.  This slide shows the foot of young sporophyte of this species digesting tissues of gametophyte.

7) 20-10d Zea mays (indian corn, gramineae); kernel, non-median ls.  For this slide a kernal is sectioned to show digestion of nucellus by aleurone layer, and of endosperms by the scutellum.

8) 13-12c Salix (willow, salicaceae); root, cs, showing branch root origin, median.  This slide shows digestion of root cortex by young branch root.

9) 11-10 Cuscuta (dodder, convolvulaceae); stem & median haustorium, on host cs.  This slide shows digestion of host tissues by haustorium.

10) 10-6ww pine seed with embryo; ls.  Embryo sporophyte digesting the female gametophyte.

11) 10-6r Pinus; archegonium, ls, showing pollen tubes in the nucellus.

12) 15-277-1 Ampelopsis (vitaceae); clinging pad, median ls.

13) 15-315-2 Drosera rotundifolia (sundew, droseraceae); leaf, cs, with unattached digestive glands.

Leaf Variation Due to External Factors

14) c-8 sun & shade leaves; cs.

15) c-9 air & water leaves; cs.

Tropisms

16) 12-262-3 Erythronium albidum (white fawn lily, liliaceae); dropper, ls with non-median bulb.

17) 11-354sp etiolation; of bean stem grown in insufficient light

Special Responses

18) 23#18 leaf of Medicago sativa; sectioned to show effect of potash starvation

19) 23#19 regeneration; on cut surface of Crambe maritima, which produces new shoots from callus tissue

20) 23#20 wound response to insect injury; various tissues

21) 3-46a Thielaviopsis basicola (black root rot of tobacco); conidial lesion in tobacco root, section.

22) 11-282a Aristolochia durior (dutchman’s pipe vine, aristolochiaceae); stem, cs showing wound reaction.

23) 23#23 physiology – wound response to worm invasion; in fungus

24) 15-386-1 Vitis (grape, vitaceae); leaf, cs, with phylloxera (insect) gall.

25) 3-96 tomato crown gall (Agrobacterium tumefaciens); hypertrophied tomato stem, section.