Foliar response of six clones of hybrid poplar
Journal Article
·
· Phytopathology; (United States)
After exposure to simulated acid rain at pH levels from 2.7 to 3.4, lesions of several types were produced on foliage of six clones of Populus spp. hybrids. The types of adaxial leaf surface lesions were observed at low magnification by scanning electron microscopy, and via leaf histology. On two clones, galls resulting from hyperplasia and hypertrophy of parenchyma cells predominated. In contrast, two clones exhibited neither hyperplasia nor hypertrophy. In these clones the upper epidermis, palisade parenchyma, and sponge parenchyma were injured in succession. In a third set of two clones, hyperplasia and hypertrophy were present in areas between injured and apparently noninjured tissues. In general, percent leaf area with lesions and percent leaves injured were similar among all six clones at all pH levels tested. At pH 2.7 up to 10% of the leaf area was injured after 5 daily exposures of 6 min each. Injury decreased to about 1.0% at pH 3.4. Lesions developed mostly near stomata and prior to maximum leaf enlargement. Very young and older leaves were less affected. The results support the hypothesis that the adaxial leaf surface is the most affected after exposure to simulated acid rain.
- Research Organization:
- Manhattan College, Bronx, NY
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6627825
- Journal Information:
- Phytopathology; (United States), Journal Name: Phytopathology; (United States) Vol. 68:6; ISSN PHYTA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Histological characterization of gell formation and lesion development on leaves of Phaseolus vulgaris and clones of hybrid poplar after exposure to simulated sulfate acid rain
Foliar response of six clones of hybrid poplar
Leaf surface and histological perturbations of leaves of Phaseolus vulgaris and Helianthus annuus after exposure to simulated acid rain
Journal Article
·
Sat Dec 31 23:00:00 EST 1977
· Bios (Madison, N.J.); (United States)
·
OSTI ID:5670306
Foliar response of six clones of hybrid poplar
Journal Article
·
Sat Jun 01 00:00:00 EDT 1968
· Phytopathology; (United States)
·
OSTI ID:6338180
Leaf surface and histological perturbations of leaves of Phaseolus vulgaris and Helianthus annuus after exposure to simulated acid rain
Journal Article
·
Mon Aug 01 00:00:00 EDT 1977
· Am. J. Bot.; (United States)
·
OSTI ID:5070331