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Articles 1 - 30 of 48
Full-Text Articles in Life Sciences
Achillea Salicifolia Besser Subsp. Salicifolia (Asteraceae) In Turkey, With Taxonomic Remarks, Turan Arabaci, Bayram Yildiz
Achillea Salicifolia Besser Subsp. Salicifolia (Asteraceae) In Turkey, With Taxonomic Remarks, Turan Arabaci, Bayram Yildiz
Turkish Journal of Botany
This study includes taxonomical improvements of Achillea salicifolia Besser subsp. salicifolia and distributions in Turkey. Differences between A. salicifolia subsp. salicifolia and relatives are discussed, and synonyms are established. Furthermore, description, localities, distribution map, and key of allied species are given.
New Records Of The Dictyocha Antarctica Lohmann, Dictyocha Crux Ehrenberg And Nitzschia Rectilonga Takano Species From The Sea Of Marmara, Ni̇yazi̇ Deni̇z, Seyfetti̇n Taş, Tufan Koray
New Records Of The Dictyocha Antarctica Lohmann, Dictyocha Crux Ehrenberg And Nitzschia Rectilonga Takano Species From The Sea Of Marmara, Ni̇yazi̇ Deni̇z, Seyfetti̇n Taş, Tufan Koray
Turkish Journal of Botany
The silicoflagellate species Dictyocha antarctica Lohmann, Dictyocha crux Ehrenb. and the diatom species Nitzschia rectilonga Takano are reported for the first time from the coastal waters of the north-eastern Sea of Marmara (lat. 40º 45.80' N - 40º 58.00' N, long. 28º 36.00' E - 29º 13.60' E) and also from the coastal waters of Turkey. Descriptions of these species are given in this paper.
Isolation Of Trichomes From Wheat And Other Species Of Flowering Plants, Zaure G. Aytasheva, Elizaveta D. Bogdanova, Aitkali M. Kalimagambetov, Sergey V. Chekalin, Fatima A. Polimbetova
Isolation Of Trichomes From Wheat And Other Species Of Flowering Plants, Zaure G. Aytasheva, Elizaveta D. Bogdanova, Aitkali M. Kalimagambetov, Sergey V. Chekalin, Fatima A. Polimbetova
Turkish Journal of Botany
Plant hairiness or pubescence as a specific phenotypical feature related to dehydration tolerance and resistance to leaf vermin is considered in this paper. A method for the isolation of trichomes, earlier developed for Arabidopsis Heynh., was found to be appropriate for the separation of similar polarised cells from pubescent wheat, Triticum aestivum L., lines, as well as some other higher plant species. This procedure thus paves the way for the study of the molecular organisation of trichomes in wheat and other mono- and dicotyledoneous plants.
Microfungi Identified From The Flora Of Ordu Province In Turkey, Şanli Kabaktepe, Zeli̇ha Bahçeci̇oğlu
Microfungi Identified From The Flora Of Ordu Province In Turkey, Şanli Kabaktepe, Zeli̇ha Bahçeci̇oğlu
Turkish Journal of Botany
In this study, 101 species of microfungi and their hosts, which were found in Ordu Province are described. The research was carried out between 2002 and 2004. Approximately 1465 vascular plant specimens, plants infected with microfungi or not, were collected from the area. At the end of the study of the host plants, 35 families, 114 genera, and 138 host plant species (151 taxa) were established. The 101 species of microfungi were observed on the collected host specimens. These species belong to 23 genera and 13 families; 24 species belong to Ascomycota, 73 to Basidiomycota, and 4 to Mitosporic Fungi …
Check-List Of Additional Taxa To The Supplement Flora Of Turkey Iii, Neri̇man Özhatay, Şükran Kültür
Check-List Of Additional Taxa To The Supplement Flora Of Turkey Iii, Neri̇man Özhatay, Şükran Kültür
Turkish Journal of Botany
This checklist contains a total of 295 taxa published as additions to the Flora of Turkey. It includes details of taxa neither recorded by P.H.Davis' "Flora of Turkey and the East Aegean Islands" or its supplements, nor in the 2 previously published checklists. The records in this list are based on data given in nearly 195 papers published up to the end of 2004.
Subalpine And Alpine Flora Of Altındere Valley (Maçka, Trabzon), Seyran Palabaş Uzun, Rahi̇m Anşi̇n
Subalpine And Alpine Flora Of Altındere Valley (Maçka, Trabzon), Seyran Palabaş Uzun, Rahi̇m Anşi̇n
Turkish Journal of Botany
The subalpine and alpine flora of Altındere Valley (Maçka, Trabzon) was investigated during 2000-2002. The study area is situated in the Colchis sector of the Euro-Siberian floristic area of the Holarctic region with regard to plant geography. In this area, 384 plant taxa belonging to 61 families and 190 genera were determined. The largest family is Asteraceae (39; 10%), and the second largest is Rosaceae (35; 9%). The rates of the taxa belonging to certain phytogeographical regions are as follows: 50.27% Euro-Siberian, 5.99% Irano-Turanian and 1.04% Mediterranean. Moreover, phytogeographically unknown taxa are 42.70%. Thirty-two endemic (8.3%) and 9 rare (2.3%) …
Presence Of Cirsium Eriophorum (L.) Scop. (Asteraceae) In Turkey, Ruzi̇ye Daşkin, Özer Yilmaz, Gönül Kaynak
Presence Of Cirsium Eriophorum (L.) Scop. (Asteraceae) In Turkey, Ruzi̇ye Daşkin, Özer Yilmaz, Gönül Kaynak
Turkish Journal of Botany
Specimens of Cirsium eriophorum (L.) Scop. were collected from A2 (A) Bursa, Uludağ. This study confirms the presence of this species, which is given as a doubtful record in the flora of Turkey. A description, photographs, an illustration of the median phyllaries and a distribution map of the species are also given.
Lichen Records From Afyonkarahisar And Isparta Provinces, Gülşah Çobanoğlu, Mustafa Yavuz
Lichen Records From Afyonkarahisar And Isparta Provinces, Gülşah Çobanoğlu, Mustafa Yavuz
Turkish Journal of Botany
A list of 89 lichen taxa is reported from the provinces of Afyonkarahisar and Isparta. Fifteen taxa from Afyonkarahisar and 38 from Isparta are new records for these provinces.
On The Taxonomy Of Plantaginaceae Juss. Sensu Lato: Evidence From Sem Of The Seed Coat, Azza Ahmed Shehata, Mohamed Hesham A. Loutfy
On The Taxonomy Of Plantaginaceae Juss. Sensu Lato: Evidence From Sem Of The Seed Coat, Azza Ahmed Shehata, Mohamed Hesham A. Loutfy
Turkish Journal of Botany
SEM of the seed coat was studied in 41 taxa of the Plantaginaceae sensu lato. The study included 31 taxa of Plantago L. and 10 taxa that were formerly assigned to the Scrophulariaceae, representing the genera Antirrhinum L., Digitalis L., Linaria Mill. and Veronica L. The obtained data were analysed by the NT sys-PC program package using the UPGMA clustering method. The study showed that Veronica possessed certain affinities to Plantago species, thus giving extra support to earlier views that Plantaginaceae sensu stricto and Scrophulariaceae sensu lato are allied through Veronica. The study also favoured the paraphyly of Plantago subgenus …
Colonial And Morphological Characteristics Of Some Microfungal Species Isolated From Agricultural Soils In Eskişehir Province (Turkey), Semra İlhan, Rasi̇me Demi̇rel, Ahmet Asan, Cengi̇z Bayçu, Engi̇n Kinaci
Colonial And Morphological Characteristics Of Some Microfungal Species Isolated From Agricultural Soils In Eskişehir Province (Turkey), Semra İlhan, Rasi̇me Demi̇rel, Ahmet Asan, Cengi̇z Bayçu, Engi̇n Kinaci
Turkish Journal of Botany
Aspergillus crustosus Raper & Fennell, Eupenicillium egyptiacum (J.F.H.Beyma) Stolk & D.B.Scott, Paecilomyces ramosus Samson & H.C.Evans, and Penicillium novae-zeelandiae J.F.H.Beyma were examined for their colonial and morphological properties via visual, light and scanning electron microscopy. These species isolated from soil in different regions of Eskişehir are recorded for the first time in Turkey.
The Morphology And Anatomy Of Crocus Flavus Weston Subsp. Flavus (Iridaceae), Canan Özdemi̇r, Peli̇n Baran, Yurdanur Akyol
The Morphology And Anatomy Of Crocus Flavus Weston Subsp. Flavus (Iridaceae), Canan Özdemi̇r, Peli̇n Baran, Yurdanur Akyol
Turkish Journal of Botany
The morphological and anatomical characteristics of Crocus flavus Weston subsp. flavus (Iridaceae) were investigated. Cross-sections of the root, stem, corm and leaf parts of C. flavus subsp. flavus were examined and cross-sections of the root, stem and leaf demonstrated by illustrations. The corm-tunic is membranous, splitting into vertical fibres and lacking distinct horizontal rings at the base. The style is obscurely trilobed or slightly divided. These features are characteristic of C. flavus subsp. flavus. Differences such as shape of leaf keel and branching of style were determined by comparing the results obtained from this subspecies with the results obtained from …
Morphological And Palynological Investigation On Silene Gigantea L. Var. Gigantea And Silene Behen L. (Caryophyllaceae) Distributed In Western Anatolia And Northern Cyprus, Kemal Yildiz
Turkish Journal of Botany
A comparative investigation was carried out on the morphology and palynology of Silene gigantea L. var. gigantea and Silene behen L. species of the family Caryophyllaceae distributed in Western Anatolia and Northern Cyprus. An examination conducted on S. gigantea var. gigantea revealed that the calyx length in Western Anatolian specimens was shorter than that of those from Northern Cyprus, that the basal petal blades of the Western Anatolian specimens did not have any ligula while those from Northern Cyprus did, and that the petal blades belonging to the specimens from Northern Cyprus demonstrated less clefting as compared to those from …
Prehistoric And Medieval Plant Remains From Two Sites On The Euphrates, South-Eastern Turkey, Emel Oybak Dönmez
Prehistoric And Medieval Plant Remains From Two Sites On The Euphrates, South-Eastern Turkey, Emel Oybak Dönmez
Turkish Journal of Botany
The results of the archaeobotanical examination of 2 sites, namely Mezraa Höyük and Gre Virike, on the Euphrates in the Karkamış (Carchemish) area, near Birecik (Şanlıurfa) in south-east Turkey are given. The cultural levels that yielded carbonised plant remains date from the Early Bronze Age (3000-2000 BC), Middle Bronze Age (2000-1500 BC) and Medieval period (11^{th} - 13^{th} centuries AD). The plant assortment in the Bronze Age did not differ essentially from that during the Medieval period. The major crop plant of the farmers was Hordeum L. (barley, hulled). Other cereal crops included Triticum dicoccum Schübl. (emmer wheat), T. monococcum …
New Record Of A Dinoflagellate Species Corythodinium Tesselatum (Stein) Loeblich Jr. & Loeblich Iii From Turkish Coastal Waters Of The North-Eastern Mediterranean Sea, Seyfetti̇n Taş, Erdoğan Okuş, Tufan Koray
New Record Of A Dinoflagellate Species Corythodinium Tesselatum (Stein) Loeblich Jr. & Loeblich Iii From Turkish Coastal Waters Of The North-Eastern Mediterranean Sea, Seyfetti̇n Taş, Erdoğan Okuş, Tufan Koray
Turkish Journal of Botany
The dinoflagellate genus Corythodinium (Stein) Loeblich Jr. & Loeblich III and one species belonging to this genus, Corythodinium tesselatum (Stein) Loeblich Jr. & Loeblich III, are reported for the first time from the coastal waters of Turkey (north-eastern Mediterranean). The morphological characteristics of this species are described and information about its ecological distribution is given.
Alleviation Of Salinity-Induced Dormancy By Growth Regulators In Wheat Seeds, Zamin Shaheed Siddiqui, Syed Shahid Shaukat, Arif Uz Zaman
Alleviation Of Salinity-Induced Dormancy By Growth Regulators In Wheat Seeds, Zamin Shaheed Siddiqui, Syed Shahid Shaukat, Arif Uz Zaman
Turkish Journal of Botany
The effect of 2 growth regulators, betaine and thiourea, was examined to learn the extent to which they can alleviate salinity-induced dormancy of wheat seeds. Germination velocity (as measured by Timson index) progressively decreased with increasing salinity, while thiourea and betaine, alone or in combination, elevated the germination velocity of wheat seeds. Timson index showed significant improvement in germination velocity when thiourea was used at 225 mM NaCl. Likewise, the adverse effect of salinity on growth parameters, like root and shoot lengths and fresh and dry weights, was also alleviated considerably when growth regulators were added. The application of growth …
Net Planktonic Diatom (Bacillariophyceae) Composition Of Lake Abant (Bolu), Abuzer Çelekli̇, Okan Külköylüoğlu
Net Planktonic Diatom (Bacillariophyceae) Composition Of Lake Abant (Bolu), Abuzer Çelekli̇, Okan Külköylüoğlu
Turkish Journal of Botany
The diatom flora of Lake Abant was studied monthly for 2 years (June 2003-June 2005) from 3 littoral and 2 vertical stations. A total of 123 diatom taxa were identified. Some species (Asterionella formosa Hassall, Cymbella silesiaca Bleisch, C. cistula Kirchner, Fragilaria biceps (Kützing) Lange-Bertalot, F. dilata (Brebisson) Lange-Bertalot, Navicula radiosa Kützing, and Rhopalodia gibba Müller) showed frequent occurrence in each month at all stations. Numbers of diatoms were increased in certain months in autumn, i.e. November (83 taxa) and December (68 taxa) 2003, and August (65 taxa) and September (76 taxa) 2004.
Ferula Parva Freyn & Bornm. (Apiaceae): A Contribution To An Enigmatic Species From Turkey, Mehmet Sağiroğlu, Hayri̇ Duman
Ferula Parva Freyn & Bornm. (Apiaceae): A Contribution To An Enigmatic Species From Turkey, Mehmet Sağiroğlu, Hayri̇ Duman
Turkish Journal of Botany
Ferula parva Freyn & Bornm. was first collected from Central Anatolia (Turkey B5 Kayseri-Yozgat in declivibus apricis inter Kayseri et Yozgat, 1890) by Bornmüller. No specimens belonging to this species have been collected since the type and Andrasovszky specimens. When the Flora of Turkey was being prepared, Dr. H. Peşmen considered this species imperfectly known; therefore, it was not included in the keys. In the present paper, diagnostic morphological characters are discussed. In addition, its ecology, conservation status, SEM photographs of the surface of mericarps, and chromosome numbers are presented.
On The Circumscription Of Isatis Tinctoria L. (Brassicaceae) In Iran, Hamid Moazzeni, Shahin Zarre
On The Circumscription Of Isatis Tinctoria L. (Brassicaceae) In Iran, Hamid Moazzeni, Shahin Zarre
Turkish Journal of Botany
In the course of preparing a revision of Isatis L. and its allies in Iran, we verified Isatis tinctoria L. among the material studied. Although it has been previously recorded for Iran, we give a more extensive description and a map of its distribution in Iran. A key to distinguishing this species from its allies and a discussion of the affinities in this group are provided.
Two New Taxa Records For The Macrofungi Of Turkey, Si̇nan Aktaş, Giyasetti̇n Kaşik, Hasan Hüseyi̇n Doğan, Celaleddi̇n Öztürk
Two New Taxa Records For The Macrofungi Of Turkey, Si̇nan Aktaş, Giyasetti̇n Kaşik, Hasan Hüseyi̇n Doğan, Celaleddi̇n Öztürk
Turkish Journal of Botany
Lachnum virgineum (Batsch) P.Karst (Hyaloscyphaceae) and Hymenoscyphus fructigenus (Bull.) Gray (Helotiaceae) are recorded for the first time from Turkey.
Macrofungi And Their Distribution In Karaman Province, Turkey, Hasan Hüseyi̇n Doğan, Celaleddi̇n Öztürk
Macrofungi And Their Distribution In Karaman Province, Turkey, Hasan Hüseyi̇n Doğan, Celaleddi̇n Öztürk
Turkish Journal of Botany
Herein, macrofungi specimens that were collected from different locations in Karaman province, Turkey between 1999 and 2001 are reported. As a result of field and laboratory studies, 202 taxa belonging to 2 classes and 41 families were identified. Of them, 11 taxa belonged to Ascomycetes and 191 to Basidiomycetes. The most common families were Tricholomataceae, with 36 species; Bolbitiaceae, with 16 species; Agaricaceae and Cortinariaceae, with 15 species each; Coprinaceae, with 13 species; and Hymenochaetaceae, with 12 species.
Folk Medicines In Merzifon (Amasya, Turkey), Nurten Ezer, Öykü Mumcu Arisan
Folk Medicines In Merzifon (Amasya, Turkey), Nurten Ezer, Öykü Mumcu Arisan
Turkish Journal of Botany
Natural sources used as folk medicines in Merzifon were investigated in this study. It was determined that 35 plant and 4 animal species together with 3 animal and 1 inorganic sources are being used as various preparations of folk medicines in Merzifon area. All the collected medicinal plants were identified and voucher specimens were deposited in the Herbarium of Hacettepe University, Faculty of Pharmacy (HUEF). Local names, part(s) used, methods of preparation and traditional usages of folk medicines are given in this paper. Traditional herbal medicines were mostly used for gastrointestinal system diseases, heart and circulatory system disorders. When our …
Lichens Of Gemlik, İznik, Mudanya And Orhangazi Districts In Bursa Province (Turkey), Seyhan Oran, Şule Öztürk
Lichens Of Gemlik, İznik, Mudanya And Orhangazi Districts In Bursa Province (Turkey), Seyhan Oran, Şule Öztürk
Turkish Journal of Botany
: One hundred and eighty-one lichen taxa are reported from 88 localities in Gemlik, İznik, Mudanya and Orhangazi districts, north of Bursa, Turkey. Three species are new records for Turkey: Arthonia dispersa (Schrad.) Nyl., Lecanora sambuci (Pers.) Nyl. and Opegrapha herbarum Mont.. Sixty-two species are new records for Bursa province.
Macrofungi Of Bekilli (Denizli) District, Saci̇t Köse, Kudret Gezer, İsa Gökler, Azi̇z Türkoğlu
Macrofungi Of Bekilli (Denizli) District, Saci̇t Köse, Kudret Gezer, İsa Gökler, Azi̇z Türkoğlu
Turkish Journal of Botany
The material of this study comprises macrofungi specimens collected from different localities in Bekilli (Denizli) in 1998 and 1999. As a result of field and laboratory studies, 61 taxa belonging to 2 classes (Ascomycetes and Basidiomycetes) and 28 families are reported.
Mms-Induced Cytomixis In Pollen Mother Cells Of Broad Bean (Vicia Faba L.), Tariq Ahmad Bhat, Sahba Parveen, Ainul Haq Khan
Mms-Induced Cytomixis In Pollen Mother Cells Of Broad Bean (Vicia Faba L.), Tariq Ahmad Bhat, Sahba Parveen, Ainul Haq Khan
Turkish Journal of Botany
Cytomixis was recorded during microsporogenesis in broad bean (Vicia faba L.), a member of the family Fabaceae. It is an important pulse crop used as vegetable, silage, forage and stock feed. The phenomenon of cytomixis was observed in various stages of meiosis in methyl methane sulphonate (MMS) treated populations of Vicia faba L. Cytomixis was observed to occur through various methods, i.e. by forming cytoplasmic channels, and direct fusion of pollen mother cells (PMCs), the former was more frequent than the latter. Both types were observed at different stages of microsporogenesis. The migration of nuclear content involved all the chromatin/chromosomes …
Teucrium Chasmophyticum Rech. F. (Lamiaceae): A New Record For The Flora Of Turkey, Ali̇ Arslan Dönmez
Teucrium Chasmophyticum Rech. F. (Lamiaceae): A New Record For The Flora Of Turkey, Ali̇ Arslan Dönmez
Turkish Journal of Botany
An interesting chasmophytic Teucrium specimen was collected from Siirt, SE Turkey. It was identified according to the Flora of Turkey as T. paederotoides but with some doubt about certain characters. It was identified as T. chasmophyticum without any doubt from Flora Iranica. Because of some indistinct points between these 2 taxa, the recently described taxon was re-evaluated. The type specimen of the taxon was examined at W herbarium and its revised description is given here. A photograph of the type specimen and the Turkish material taken from the field is supplied along with a map.
Seasonal Variation Of Phytoplankton And Value Of Chlorophyll A In The Sarıyar Dam Reservoir (Ankara, Turkey), Tahi̇r Atici, Olcay Obali
Seasonal Variation Of Phytoplankton And Value Of Chlorophyll A In The Sarıyar Dam Reservoir (Ankara, Turkey), Tahi̇r Atici, Olcay Obali
Turkish Journal of Botany
The phytoplanktonic algae were determined in samples taken from 7 different locations at the Sarıyar Dam Reservoir (SDR) from March 1996 to June 1997. The seasonal variation of phytoplankton and their chlorophyll a were determined and contents were discussed in relation to the physical and chemical parameters of the water. The divisions Bacillariophyta and Chlorophyta were dominant; however, Cyclotella, Navicula, Nitzschia and Synedra of Bacillariophyta, and Chlorella and Scenedesmus of Chlorophyta were abundant. Chlorophyll a reached its maximum levels during June and September 1996 and May 1997, corresponding to the maximum values of orthophosphate, sulphate, calcium and temperature in the …
Net Diatom (Bacillariophyceae) Flora Of Lake Gölköy (Bolu), Abuzer Çelekli̇
Net Diatom (Bacillariophyceae) Flora Of Lake Gölköy (Bolu), Abuzer Çelekli̇
Turkish Journal of Botany
The diatom flora of Lake Gölköy was studied monthly over 2 years (June 2003-June 2005) from 3 littoral and 2 vertical stations in Lake Gölköy (Bolu, Turkey). A total of 119 diatom taxa were identified, most of them belonging to Naviculaceae (48.7%) Kützing, Fragilariceae (16.8%) Hustedt, Surirellaceae (11.8%) Kützing, and Bacillariaceae (6.7%) Ehrenberg, from which many species (Asterionella formosa Hassall, Aulacoseria granulata (Ehrenberg) Simonsen, Cyclotella praetermis Lund, Cymbella cistula Kirchner, Fragilaria biceps (Kützing) Lange-Bertalot, F. crotonensis Kitton, F. dilata (Brebisson) Lange-Bertalot, Navicula radiosa Kützing, and Nitzschia sigmoidae (Nitzsch) Smith) were found each month at all stations. Species richness was especially …
Red Tide Observations Along The Eastern Black Sea Coast Of Turkey, Ali̇ Muzaffer Feyzi̇oğlu, Hamdi̇ Öğüt
Red Tide Observations Along The Eastern Black Sea Coast Of Turkey, Ali̇ Muzaffer Feyzi̇oğlu, Hamdi̇ Öğüt
Turkish Journal of Botany
To determine the occurrence of dominant phytoplanktonic species causing red tides along the eastern Black Sea (Trabzon) coast of Turkey, multiple samples were collected periodically between 1991 and 2001. Red tide events were observed only during the periods between February and July. Six phytoplanktonic species causing 5 red tide events detected were Diplopsalis lenticula, Euglena acusformis, Eutreptia lanowii, Pyramimonas orientalis, Scrippsiella trochoidea, and Gymnodinium sanguineum. Numeric density of species during the red tide events ranged between 0.97 x 10^6 and 356 x 10^6 cells l^{-1}. During the red tides, the highest level of chlorophyll-a biomass ranged between 4.6 and 54.87 …
Morphological, Anatomical And Palynological Investigation On Sonchus Erzincanicus Matthews (Asteraceae), Ali̇ Kandemi̇r, Serdal Makbul, Zafer Türkmen, Murat Yilmaz
Morphological, Anatomical And Palynological Investigation On Sonchus Erzincanicus Matthews (Asteraceae), Ali̇ Kandemi̇r, Serdal Makbul, Zafer Türkmen, Murat Yilmaz
Turkish Journal of Botany
In this study, Sonchus erzincanicus Matthews (Asteraceae) collected from Erzincan (Turkey) has been investigated by its leaf and stem anatomical features, pollen grain characteristics and ecological features. It is an endemic perennial herbs growing in slightly basic with low organic content soil. Stem cortex seen transparently is composed of parenchyma cells. The leaves are bifacial and have stomata cells that are anomocytic. The pollen type of the species is trizonocolporate. All anatomical studies including transverse sections of the stems and leaves and surface section of leaves are illustrated for the firs time.
Foliar Response Of Ipomea Pes-Tigridis L. To Coal-Smoke Pollution, Rama Bharti Verma, -- Mahmooduzzafar, Tariq Omar Siddiqi, Muhammad Iqbal
Foliar Response Of Ipomea Pes-Tigridis L. To Coal-Smoke Pollution, Rama Bharti Verma, -- Mahmooduzzafar, Tariq Omar Siddiqi, Muhammad Iqbal
Turkish Journal of Botany
Air pollutants emitted from Badarpur Thermal Power Plant, New Delhi, influenced the foliar features of a common weed, Ipomea pes-tigridis L., as observed at distances 0.5, 2, 6, 12 and 16 km from the emission source. Observations recorded at the pre-flowering, flowering and post-flowering stages of plant growth indicated that the stomatal pore size, number of stomata, and stomatal index on both surfaces of leaves decreased near the source of pollution. Compared with the control, chlorophyll a, b and carotenoid contents decreased significantly under pollution stress. Rate of photosynthesis and stomatal conductance dropped drastically, whereas CO_2 level in the mesophyll …