biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 43:263-267, 2000 | DOI: 10.1023/A:1002712528893

Stomatal Conductance, Photosynthetic Rate, and Pigment Content in Ruellia Tuberosa Leaves as Affected by Coal-Smoke Pollution

F. Nighat1, Mahmooduzzafar1, M. Iqbal1
1 Department of Botany, Jamia Hamdard, Hamdard Nagar, New Delhi, India

Study of the effects of air pollution caused by thermal power plant emissions on some foliar traits of Ruellia tuberosa L. has shown that length and width of stomata, length of stomatal pore, stomatal density, photosynthetic rate, stomatal conductance and chlerophyll content were reduced in the polluted plants in pre-flowering, flowering as well as post-flowering phases of plant growth. Intercellular carbon dioxide concentration in the palisade tissue was increased at each stage of plant development. Stomatal index remained almost unchanged at the polluted site, except on the adaxial surface during the preflowering stage where it was higher as compared to the non-polluted plants.

Keywords: carotenoids; chlorophyll; photosynthesis; stomatal conductance; stomatal index; stomatal morphology
Subjects: carotenoids, coal-smoke pollution; chlorophyll, coal-smoke pollution; morphology, stomata, coal-smoke pollution; net photosynthetic rate, coal-smoke pollution; photosynthetic rate, coal-smoke pollution; stomatal conductance, coal-smoke pollution; stomatal index, photosynthesis

Published: August 1, 2000  Show citation

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Nighat, F., Mahmooduzzafar,, & Iqbal, M. (2000). Stomatal Conductance, Photosynthetic Rate, and Pigment Content in Ruellia Tuberosa Leaves as Affected by Coal-Smoke Pollution. Biologia plantarum, 43(2), 263-267. doi: 10.1023/A:1002712528893
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