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Elizabeth Findley Shores Collection Of Roland M. Harper, Zach S. Henderson Library Special Collections

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This collection consists of articles and letters-to-the-editor written by Roland M. Harper for publication in scholarly journals. Sometimes in typescript, his works focus on botany, conservation, and social conditions, primarily in the southeastern United States. Spanning 1906-1965, additional documents, photographs and audio visual materials pertaining to Roland M. Harper’s family history are included. The collection’s creator, Elizabeth Findley Shores, is the author of the biography On Harper's Trail: Roland McMillan Harper, Pioneering Botanist of the Southern Coastal Plain (2008).

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In Vitro Cultures For Production Of Zerumbone And Mass Propagation In Zingiber Zerumbet Smith., Farah Diana Idris

Student Works (2010-2019)

Lempoyang (Zingiber zerumbet Smith.) is an important plant which has been propagated because of its medicinal values. Lempoyang is widely used as a folk medicine in Asian countries such as Malaysia, Indonesia, India and Taiwan. Zerumbone, a cyclic sesqueterpene found to be the major and main bioactive compound that gives great potential in medicinal purposes especially in the treatment of chronic diseases based on recent reports. Recently, it was found that zerumbone inhibited the growth of human leukemia cell line, HL-60 cell. Even though there are so many great values contain in the lempoyang but it is hard to obtain …

Sfa Gardens Newsletter, Winter 2010, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Impact Of Soil Drought Stress On Photochemical Efficiency Of Photosystem Ii And Antioxidant Enzyme Activities Of Phaseolus Vulgaris Cultivars, Rabi̇ye Terzi̇, Aykut Sağlam, Ni̇hal Kutlu, Hati̇ce Nar, Asim Kadioğlu

Turkish Journal of Botany

Common bean (Phaseolus vulgaris L.) cultivars (cvs) (Göynük 98, Karacaşehir 90, Şehirali 90, ES 855, and Yunus 90) were subjected to drought stress in order to assess the levels of drought tolerance through the analysis of growth parameters, leaf water potential (\psi_{leaf}), stomatal conductance (g_s), chlorophyll (chl) content, and lipid peroxidation. Significant differences were recorded among cultivars in most traits. Yunus 90 was identified as the most tolerant, and Karacaşehir 90 was the most sensitive. Furthermore, the changes in antioxidant enzyme activities, H_2O_2 content, and Photosystem II were investigated under drought stress, where Antioxidant enzyme activities increased while H_2O_2 contents …

High Frequency Plant Production Via Shoot Organogenesis And Somatic Embryogenesis From Callus In Tylophora Indica, An Endangered Plant Species, Aastha Sahai, Anwar Shahzad, Mohammad Anis

Turkish Journal of Botany

An efficient and reproducible protocol has been developed for the in vitro production of an endangered medicinal climber Tylophora indica (Burm.f.) Merr. via leaf explants. Different types of calli produced on benzyladenine (BA) and thidiazuron (TDZ) supplemented Murashige and Skoog (MS) basal medium were selected for shoot induction and somatic embryogenesis studies. Calli when transferred from BA (5 µM) and TDZ (2.5 µM) to MS medium containing BA (5 µM) resulted in high frequency shoot induction (26.8 ± 0.97 shoots/culture) along with somatic embryogenesis (10.20 ± 0.37 embryoids/culture) up to 3 subculture passages. Embryoids transformed into complete plantlets when transferred …

Enhanced Adventitious Shoot Regeneration From Aerial Stem Explants Of Ginger Using Tdz And Its Histological Studies, Adinkudikuyyal Lincy, Bhaskaran Sasikumar

Turkish Journal of Botany

A protocol for direct plantlet regeneration from aerial stem explants of ginger (Zingiber officinale Rosc.) has been developed. Adventitious shoots and roots were regenerated from in planta aerial stem explants of 2 ginger varieties viz. var. 'Jamaica' and var. 'Varada'. Maximum shoot and root regeneration were observed in the cultures containing TDZ and IBA (1:1; 1:0.1 mg L-1) in both varieties. Cultures containing TDZ alone showed poor shoot and root formation. Histological studies revealed that the shoot initials originated from the primary thickening meristem and apical meristem, while the root primordial originated from the primary thickening meristem present in the …

The Genotoxic Potential Of Two Heavy Metals In Inbred Lines Of Maize (Zea Mays L.), Girjesh Kumar, Prashant Kumar Rai

Turkish Journal of Botany

The genotoxic effects of 2 heavy metals (mercury chloride and cadmium chloride) on the gametic cells of 6 inbred lines of maize were tested in terms of cytological abnormalities. Meiosis was normal under control conditions. During the treatments with mercury and cadmium there was a concentration-dependent increase in meiotic abnormalities in all the inbred lines. A wide spectrum of chromosomal aberrations in the treated sets was stickiness, followed by laggards, bridges, scattering, precocious movement, fragments, etc. Maximum chromosomal anomalies were observed in inbred line CM-142 in both the treatment sets of heavy metals. Compared to CdCl_2, HgCl_2 induced more chromosomal …

A New Record For The Flora Of Turkey: Scorzonera Ketzkhovelii Grossh. (Asteraceae), Ergi̇n Hamzaoğlu, Ahmet Aksoy, Esra Marti̇n, Münevver Pinar, Hati̇ce Çölgeçen

Turkish Journal of Botany

Scorzonera ketzkhovelii Grossh. (Asteraceae) was recently collected from Yusufeli, Artvin (north-east Anatolia) and it has been reported as a new species record for the flora of Turkey. It is described and illustrated. In addition, its karyological features and pollen morphology are given.

Using Vegetation Units As Salinity Predictors In The Lower Cheliff Algeria, Adda Ababou, Mohammed Chouieb, Mohammed Khader, Khalladi Mederbal, Djamel Saidi

Turkish Journal of Botany

The Lower Cheliff plain is among the largest salted soils in north-western Algeria. In order to establish the relationships between the main soil factors and plant species in this stressed ecosystem, 133 relevés related to soil and vegetation were realized. Soil variables measured included electrical conductivity and calcium carbonate. The 133 relevés were arranged in clusters using k-means classification. The similarity analysis used to examine the variation in vegetation assemblage structure showed significant differences in taxonomical composition among groups of relevés. The phi coefficient of fidelity used then to extract the different vegetation units and to measure species concentration in …

A New Subspecies Of Stachys Cretica (Section Eriostomum, Lamiaceae) From Turkey, Ekrem Akçi̇çek

Turkish Journal of Botany

Stachys cretica L. subsp. kutahyensis Akçiçek subsp. nova is described as a new subspecies from West Anatolia, Turkey. It is related to Stachys cretica L. subsp. vacillans Rech. f. and Stachys cretica L. subsp. anatolica Rech. f., from which it differs in stem, leaf, and flower characters. Diagnostic characters, description, detailed illustrations, and taxonomic comments of the new subspecies are given. The geographical distribution of the subspecies is mapped. IUCN threat category and observations on the population are noted.

A Taxonomic Revision Of Salvia Euphratica Sensu Lato And Its Closely Related Species (Sect. Hymenosphace, Lamiaceae) Using Multivariate Analysis, Ahmet Kahraman, Ferhat Celep, Musa Doğan, Safi Bagherpour

Turkish Journal of Botany

As an initial part of a revisional study based on the genus Salvia L. (Lamiaceae), extensive field studies, herbarium and literature surveys, and multivariate analysis have been conducted on the basis of the Salvia euphratica sensu lato (S. cerino-pruinosa, S. euphratica, S. leiocalycina, and S. pseudeuphratica) and its closely related species (S. kronenburgii and S. sericeo-tomentosa) in order to understand their taxonomic status. For the multivariate analysis, 35 OTUs (Operational Taxonomic Units) representing 24 populations of the species were investigated and scored on the basis of 25 character states by means of MVSP software. Principle coordinate analysis (PCO) utilizing the …

A New Species Of Onosma (Boraginaceae) From Eastern Turkey, Ali̇ Kandemi̇r, Zafer Türkmen

Turkish Journal of Botany

Onosma beyazoglui Kandemir & Z. Türkmen sp. nov. (Boraginaceae) is described as a new species from the province of Erzincan in Turkey. Diagnostic morphological characters of this new species from the related species are discussed.

Nitrogen And Phosphorus Resorption In A Salt Marsh In Northern Turkey, Yasemi̇n Çakir, Tuğba Özbucak, Hamdi̇ Güray Kutbay, Dudu Duygu Kiliç, Ali̇ Bi̇lgi̇n, Rena Huseyinova

Turkish Journal of Botany

This study was conducted to investigate foliar nitrogen and phosphorus dynamics, nitrogen and phosphorus resorption, and some leaf traits (i.e. SLA=specific leaf area) in some coastal salt marsh plants located in northern Turkey. The study area is located on the east bank of the Kızılırmak River in the central Black Sea Region. There were statistically significant differences among months (from June to October) in terms of SLA in all species except for Artemisia santonicum. However, no significant differences were found with respect to P in all species. The highest N and P resorption efficiencies were found in Salicornia prostrata, whereas …

Development Of A Highly Responsive Leaf-Based Regeneration System For Peperomia Species, Mohammad Ahmadabadi, Ralph Bock

Turkish Journal of Botany

Several species in the genus Peperomia Ruiz & Pav. have giant chloroplasts in the palisade parenchyma of their leaves. Because of this unique feature, Peperomia metallica L. Linden & Rodigas has become a valuable model plant for studying plastid biology. However, the use of Peperomia for molecular studies has been limited by the lack of efficient regeneration and transformation protocols. In this work, we aimed to develop a reliable regeneration system for Peperomia from leaf explants. Using MS medium complemented with different combinations of phytohormones, a highly efficient in vitro regeneration protocol was developed for P. metallica and P. peduncularis, …

Macrofungi Of Derebucak District (Konya, Turkey), Si̇nan Alkan, Giyasetti̇n Kaşik, Si̇nan Aktaş

Turkish Journal of Botany

Macrofungi specimens were collected from different localities in Derebucak district (Konya province) between 2005 and 2007, particularly during the autumn and spring. As a result 134 species were identified. Thirteen of them belong to Ascomycota, and the other 121 belong to the division Basidiomycota. According to the present literature about the macrofungi of Turkey, 6 taxa are new records for Turkey. These are Lachnellula calyciformis (Willd.) Dharne of the division Ascomycota, and Hebeloma stenocystis J.Favre, Cortinarius calochrous var. coniferarum (M.M.Moser) Nezdojm., Cortinarius cupreorufus Brandrud, Inocybe ayeri Furrer-Ziogas, and Calocera pallidospathulata D.A.Reid of the division Basidiomycota.

Phytosociological Structure Of Nemrut Mountain (Adıyaman/Turkey), Ahmet Zafer Tel, Adem Tatli, Ömer Varol

Turkish Journal of Botany

This investigation was carried out between 1996 and 2001 in order to research the vegetation of Nemrut Mountain, one of the most important national historical park of Anatolia, on the south-east Taurus (Adıyaman-Turkey). Vegetation studies have been carried out according to the Braun-Blanquet's method. In this study we determined 7 plant associations, 3 sub associations, and 1 plant community, all of which are syntaxa new to science, in 4 different vegetation types. Associations and its higher units are as follows: Quercetea ilicis Br.-Bl. 1947 Qercetalia ilicis Br.-Bl. 1947 Quercion calliprini Zohary 1962 1. Pistacio khynjuki-Cotinetum coggyriae ass. nova Quercetea pubescentis …

Male Individuals In Cultivated Fritillaria Persica L. (Liliaceae): Real Androdioecy Or Gender Disphasy?, Elisa Mancuso, Lorenzo Peruzzi

Turkish Journal of Botany

In the last twenty years the growing number of studies about the reproductive biology in angiosperms has brought to light new cases of andromonoecy and androdioecy, the rarest sexual models among flowering plants. Female-sterile sexual systems, especially within order Liliales and family Liliaceae, often seem to occur in the particular form of size/age dependent sex allocation, known as "gender disphasy". The presence of male individuals of Fritillaria persica (Liliaceae) is here documented. Comparative morphological and functional sexual expression of this species, among males and hermaphrodites, was investigated by means of flowers counting, morphometric measurements of plants and pollen-grains, pollen viability …

Phylogenetic Relationships Of Elymus L. And Related Genera (Poaceae) Based On The Nuclear Ribosomal Internal Transcribed Spacer Sequences, Ayten Di̇zkirici, Zeki̇ Kaya, Evren Cabi̇, Musa Doğan

Turkish Journal of Botany

To help in the clarification of the taxonomic status of Elymus L. and related genera Agropyron Gaertn., Leymus Hochst., Hordelymus (Jess.) Harz, and Brachypodium P.Beauv., the sequence diversity in the internal transcribed spacer (ITS) region of nuclear ribosomal DNA was studied. ITS data of 64 Triticeae accessions including 40 Elymus, 12 Agropyron, 7 Leymus, and 4 Hordelymus, and 1 Brachypodium as an out-group were analysed. The molecular diversity statistics indicated that the most diverse genus is Elymus among the studied genera. The constructed phylogenetic tree by the maximum parsimony method revealed that one specimen of Elymus, E. pycnanthus (Godr.) Melderis, …

A New Species Of Echinops (Asteraceae) From Turkey, Cem Vural, Mustafa Kemal Bi̇ter, Mehmet Yaşar Dadandi

Turkish Journal of Botany

Echinops dumanii C.Vural is described and illustrated from Adana province, South Anatolia, Turkey. It is considered to be endemic to Turkey. The morphological differences from the closely related species Echinops phaeocephalus Hand.-Mazz. are discussed. The International Union for Conservation of Nature (IUCN) threat category and observations on the ecology of the populations are noted. The geographical distribution of the new species is mapped.

Carbon Dynamics In A Phragmites Australis Invaded Riparian Wetland, Steven Walters

School of Natural Resources: Dissertations, Theses, and Student Research

Invasive plant species are widely recognized as a major threat to biodiversity and ecosystem stability. Wetland ecosystems tend to be much more susceptible to invasions because of their location on the landscape where water, nutrients, and the impacts of disturbances accumulate. Invasive plants have the ability to alter ecosystem processes and community/population dynamics. The ability of invasive plants to alter these processes can have profound economic consequences. In the United States, control of invasive wetland species alone costs approximately 155 million dollars annually. The state of Nebraska spends 2 million dollars annually controlling invasive plant species in the Platte River …