Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality
Plants growing in environments with different atmospheric conditions may present changes in the morphometric parameters of their leaves. Microgramma squamulosa (Kaulf.) de la Sota is a neotropical epiphytic fern found in impacted environments. The aims of this study were to quantitatively compare st...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2014-09-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301137&lng=en&tlng=en |
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| author | LEDYANE D. ROCHA GUSTAVO M. DA COSTA GÜNTHER GEHLEN ANNETTE DROSTE JAIRO L. SCHMITT |
| author_facet | LEDYANE D. ROCHA GUSTAVO M. DA COSTA GÜNTHER GEHLEN ANNETTE DROSTE JAIRO L. SCHMITT |
| author_sort | LEDYANE D. ROCHA |
| collection | DOAJ |
| description | Plants growing in environments with different atmospheric conditions may present changes in the morphometric parameters of their leaves. Microgramma squamulosa (Kaulf.) de la Sota is a neotropical epiphytic fern found in impacted environments. The aims of this study were to quantitatively compare structural characteristics of leaves in areas with different air quality conditions, and to identify morphometric parameters that are potential indicators of the effects of pollution on these plants. Fertile and sterile leaves growing on isolated trees were collected from an urban (Estância Velha) and a rural (Novo Hamburgo) environment, in Rio Grande do Sul, Brazil. For each leaf type, macroscopic and microscopic analyses were performed on 192 samples collected in each environment. The sterile and fertile leaves showed significantly greater thickness of the midrib and greater vascular bundle and leaf blade areas in the rural environment, which is characterized by less air pollution. The thickness of the hypodermis and the stomatal density of the fertile leaves were greater in the urban area, which is characterized by more air pollution. Based on the fact that significant changes were found in the parameters of both types of leaves, which could possibly be related to air pollutants, M. squamulosa may be a potential bioindicator. |
| first_indexed | 2024-12-23T20:33:28Z |
| format | Article |
| id | doaj.art-c3a4f2e2e70a46d6819584b08893de3f |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-12-23T20:33:28Z |
| publishDate | 2014-09-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-c3a4f2e2e70a46d6819584b08893de3f2022-12-21T17:32:10ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902014-09-018631137114610.1590/0001-3765201420130094S0001-37652014000301137Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air qualityLEDYANE D. ROCHAGUSTAVO M. DA COSTAGÜNTHER GEHLENANNETTE DROSTEJAIRO L. SCHMITTPlants growing in environments with different atmospheric conditions may present changes in the morphometric parameters of their leaves. Microgramma squamulosa (Kaulf.) de la Sota is a neotropical epiphytic fern found in impacted environments. The aims of this study were to quantitatively compare structural characteristics of leaves in areas with different air quality conditions, and to identify morphometric parameters that are potential indicators of the effects of pollution on these plants. Fertile and sterile leaves growing on isolated trees were collected from an urban (Estância Velha) and a rural (Novo Hamburgo) environment, in Rio Grande do Sul, Brazil. For each leaf type, macroscopic and microscopic analyses were performed on 192 samples collected in each environment. The sterile and fertile leaves showed significantly greater thickness of the midrib and greater vascular bundle and leaf blade areas in the rural environment, which is characterized by less air pollution. The thickness of the hypodermis and the stomatal density of the fertile leaves were greater in the urban area, which is characterized by more air pollution. Based on the fact that significant changes were found in the parameters of both types of leaves, which could possibly be related to air pollutants, M. squamulosa may be a potential bioindicator.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301137&lng=en&tlng=enpoluição atmosféricabioindicadorepifitismosamambaiaanatomia foliar |
| spellingShingle | LEDYANE D. ROCHA GUSTAVO M. DA COSTA GÜNTHER GEHLEN ANNETTE DROSTE JAIRO L. SCHMITT Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality Anais da Academia Brasileira de Ciências poluição atmosférica bioindicador epifitismo samambaia anatomia foliar |
| title | Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality |
| title_full | Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality |
| title_fullStr | Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality |
| title_full_unstemmed | Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality |
| title_short | Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality |
| title_sort | morphometric differences of microgramma squamulosa kaulf de la sota polypodiaceae leaves in environments with distinct atmospheric air quality |
| topic | poluição atmosférica bioindicador epifitismo samambaia anatomia foliar |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301137&lng=en&tlng=en |
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