scholarly journals Host plant specificity of corticolous lichens in urban and suburban New Amsterdam, Berbice, Guyana

2021 ◽  
Vol 14 (1) ◽  
pp. 101-108
Author(s):  
Bebe Raazia Bacchus ◽  
Phillip N.B. Da Silva
Keyword(s):  
Host Plant ◽  
Cocos Nucifera ◽  
Mangifera Indica ◽  
Lichen Species ◽  
New Amsterdam ◽  
Host Trees ◽  
Host Plant Specificity ◽  
Crustose Lichens ◽  
Flavoparmelia Caperata ◽  
Swietenia Mahagoni

In this study, host plant - lichen specificity was investigated. Data was collected from 1000m2 sampling plots at each of four locations with an established 50m x 20m plot at each site. Forty-one trees from across five species were examined using (10cm by 50cm) ladder quadrats on tree trunks (N, S, E, W) at 150cm height. A total of 14978 individual lichens were identified that yielded 10 families, 13 genera and 18 species. Swietenia mahagoni showed the highest average corticolous lichen species composition, followed by Terminalia catappa and Melicoccus bijugales respectively. Cocos nucifera had a higher average species recorded than Mangifera indica. Crustose lichens were the most prominent corticolous lichens observed (61%) with the most individuals in Graphidaceae and Arthoniaceae. Foliose lichens (28%) showed the most abundance in Parmeliaceae, Caliciaceae and Collemataceae. Of the taxa recorded, 22.2% were restricted to specific trees. C. parasitica, H. laevigata, U. cornuta were restricted to S. mahagoni. D. applanata was restricted to C. nucifera. 22.2% of recorded species were found on all of the tree hosts that were examined. Bacidia laurocerasi, Flavoparmelia caperata, Flavoparmelia soredians and Graphina anguina. S. mahagoni hosted 88.9% of all recorded species. Swietenia mahagoni showed the highest average of recorded corticolous lichen species of all host trees with 7.58. Mangifera indica showed the lowest average with 4. The maximum number of species (10) was recorded on one S. mahagoni tree

scholarly journals ANALISIS BIOMASA DAN POTENSI PENYERAPAN KARBON OLEH TANAMAN POHON DI TAMAN KOTA LUWUK

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Moh. Fahri Haruna
Keyword(s):  
Cocos Nucifera ◽  
Mangifera Indica ◽  
Tectona Grandis ◽  
Annona Muricata ◽  
Hibiscus Rosa Sinensis ◽  
Areca Catechu ◽  
Mimusops Elengi ◽  
Cerbera Manghas ◽  
Albizia Saman ◽  
Swietenia Mahagoni

Penelitian ini untuk mengetahui jenis dan vegetasi pohon, serta potensi nilai biomassa dan penyerapan karbon yang berada di taman-taman Kota Luwuk. Pengambilan data secara langsung mengukur diameter  lingkaran pohon dengan tinggi 130 cm. Data yang dihasilkan dihitung berdasarkan perhitungan kerapatan (densitas), keragaman dan dominansi, nilai biomassa di atas permukaan tanah (batang), nilai biomassa di bawah permukaan tanah (akar), nilai biomassa total perpohon dan kandungan karbon. Teknik analisis data menggunakan dekriptif  kualitatif dan analisis kuantitatif. Hasil penelitian ada 17 Jenis yang teridentifikasi di taman Kota Luwuk, yaitu Albizia saman, Polyaalthia longifolia, Swietenia mahagoni, Tectona grandis,  Areca catechu, Cocos nucifera, Plumeria, Mimusops elengi, Syzygium aqueum, Cerbera manghas, Terminalia mantaly, Ficus benjamina, Bauhina purpurea, Annona muricata, Casuarina junghuhniana, Hibiscus rosa-sinensis, Mangifera indica. Hasil juga menunjukan nilai vegetasi pohon yaitu dimana keanekaragaman sedang dan berdominansi rendah. Nilai biomassa total 180.522,53 gr, total karbon tersimpan 84.845,6 dan daya penyerapan karbon 311.383,31 gr.

scholarly journals In vitro analysis of host plant specificity in Rhizoctonia solani

1997 ◽  
Vol 46 (5) ◽  
pp. 659-669 ◽  
Author(s):  
J. KEIJER ◽  
M. G. KORSMAN ◽  
A. M. DULLEMANS ◽  
P. M. HOUTERMAN ◽  
J. DE BREE ◽  
...  
Keyword(s):  
Rhizoctonia Solani ◽  
Host Plant ◽  
Host Plant Specificity ◽  
Vitro Analysis ◽  
In Vitro Analysis

Contributions to Molecular Phylogeny of Lichen-Forming Fungi 2. Review of Current Monophyletic Branches of the Family Physciaceae

2021 ◽  
Vol 63 (3-4) ◽  
pp. 351-390
Author(s):  
S. Y. Kondratyuk ◽  
L. Lőkös ◽  
I. Kärnefelt ◽  
A. Thell ◽  
M.-H. Jeong ◽  
...  
Keyword(s):  
Costa Rica ◽  
Molecular Phylogeny ◽  
Type Species ◽  
Lichen Species ◽  
New Combinations ◽  
Phylogeny Analysis ◽  
The Family ◽  
Crustose Lichens ◽  
First Time ◽  
Combined Matrix

Seven genera new to science, i.e.: Helmutiopsis, Huriopsis, Johnsheardia, Klauskalbia, Kudratovia, Kurokawia and Poeltonia of the Physciaceae are proposed for the ‘Rinodina’ atrocinerea, the ‘Rinodina’ xanthophaea, the ‘Rinodina’ cinnamomea, the ‘Heterodermia’ obscurata, the ‘Rinodina’ straussii, the ‘Anaptychia’ isidiata and the ‘Physconia’ grisea groups consequently that all form strongly supported monophyletic branches in a phylogeny analysis based on a combined matrix of nrITS and mtSSU sequences. Phylogenetic positions of species belonging to the genera Kashiwadia s. l., Leucodermia, Mischoblastia,Oxnerella, Phaeorrhiza s. l., Polyblastidium and Rinodinella s. l. are discussed. Oxnerella afghanica which for the first time recorded as parasitic lichen species from both epiphytic and saxicolous crustose lichens is designated as type species for the genus Oxnerella. Sequences of the recently described Physcia orientostellaris as well as Huriopsis xanthophaea and additional sequences of Kashiwadia aff. orientalis and Mischoblastia aff. oxydata are submitted to the GenBank. The positions of Polyblastidium casaterrinum from Costa Rica, ‘Rinodina’ efflorescens from Białowieża, Poland, and ‘Mischoblastia’ confragosula from Cambodia in the Physciaceae are confirmed in a phylogeny analysis based on the nrITS sequences. The presence of ‘extraneous mycobiont DNA’ in lichen associations is exemplified with earlier incorrect identifications of Heterodermia, Kashiwadia, Kurokawia,Oxnerella and Poeltonia specimens. Fifty-six new combinations are presented: Helmutiopsis alba (for Rinodina alba Metzler ex Arn.), Helmutiopsis aspersa (for Lecanora aspersa Borrer), Helmutiopsis atrocinerea (for Parmelia atrocinerea Fr.), Huriopsis chrysidiata (for Rinodina chrysidiata Sheard), Huriopsis chrysomelaena (for Rinodina chrysomelaena Tuck.), Huriopsis lepida (for Lecanora lepida Nyl.), Huriopsis luteonigra (for Rinodina luteonigra Zahlbr.), Huriopsis plana (for Rinodina plana H. Magn.), Huriopsis thiomela (for Lecanora thiomela Nyl.), Huriopsis xanthomelana (for Rinodina xanthomelana Müll. Arg.), Huriopsis xanthophaea (for Lecanora xanthophaea Nyl.), Johnsheardia cinnamomea (for Rinodina mniaroea var. cinnamomea Th. Fr.), Johnsheardia herteliana (for Rinodina herteliana Kaschik), Johnsheardia jamesii (for Rinodina jamesii H. Mayrhofer), Johnsheardia reagens (for Rinodina reagens Matzer et H. Mayrhofer), Johnsheardia zwackhiana (for Lecanora zwackhiana Kremp.), Kashiwadia austrostellaris (for Physcia austrostellaris Elix), Kashiwadia jackii (for Physcia jackii Moberg), Kashiwadia littoralis for Physcia littoralis Elix), Kashiwadia nubila (for Physcia nubila Moberg), and Kashiwadia tropica (for Physcia tropica Elix), Klauskalbia crocea (for Heterodermia crocea R. C. Harris), Klauskalbia flabellata (for Parmelia flabellata Fée), Klauskalbia obscurata (for Physcia speciosa (Wulfen) Nyl. *obscurata Nyl.), Klauskalbia paradoxa (for Heterodermia paradoxa Schumm et Schäfer-Verwimp), Kudratovia bohlinii (for Rinodina bohlinii H. Magn.), Kudratovia candidogrisea (for Rinodina candidogrisea Hafellner, Muggia et Obermayer), Kudratovia luridata (for Buellia luridata Körb.), Kudratovia metaboliza (for Rinodina metaboliza Vain.), Kudratovia pycnocarpa (for Rinodina pycnocarpa H. Magn.), Kudratovia roscida (for Lecanora roscida Sommerf.), Kudratovia straussii (for Rinodina straussii J. Steiner), Kudratovia terrestris (for Rinodina terrestris Tomin), Kurokawia bryorum (for Anaptychia bryorum Poelt), Kurokawia isidiata (for Anaptychia isidiata Tomin), Kurokawia mereschkowskii (for Physcia mereschkowskii Tomin), Kurokawia palmulata (for Psoroma palmulatum Michx.), Kurokawia runcinata (for Lichen runcinatus With.), Kurokawia stippea (for Parmelia aquila var. stippea Ach.), Lecania safavidiorum (for Oxnerella safavidiorum S. Y. Kondr., Zarei-Darki, Lőkös et Hur), Leucodermia erinacea (for Lichen erinaceus Ach.), Mischoblastia confragosula (for Lecanora confragosula Nyl.), Mischoblastia destituta (for Lecidea destituta Nyl.), Mischoblastia moziana (for Lecanora moziana Nyl.), Mischoblastia moziana subsp. parasitica (comb. et stat. nova for Rinodina moziana var. parasitica Kaschik et H. Mayrhofer), Mischoblastia ramboldii (for Rinodina ramboldii Kaschik), Mischoblastia vezdae (for Rinodina vezdae H. Mayrhofer), Oxnerella afghanica (for Rinodina afghanica M. Steiner et Poelt), Oxnerella castanomelodes (for Rinodina castanomelodes H. Mayrhofer et Poelt), Physciella nigricans (for Lecanora nigricans Flörke), Poeltonia elegantula (for Physconia elegantula Essl.), Poeltonia grisea (for Lichen griseus Lam.), Poeltonia isidiomuscigena (for Physconia isidiomuscigena Essl.), Poeltonia perisidiosa (for Physcia perisidiosa Erichsen), Poeltonia venusta (for Parmelia venusta Ach.), and Polyblastidium albicans (for Parmelia albicans Pers.) are proposed.

Indeginous Knowledge of Drynaria quercifolia (L.) J. Smith; An Important Medicinal Fern of Western Ghats

2017 ◽  
Vol 24 (2) ◽  
pp. 75-78
Author(s):  
Charana Kumar ◽  
◽  
Clara Manasa P.A. ◽  
M. Jadeyegowda ◽  
Shrikant Gunaga ◽  
...  
Keyword(s):  
Mangifera Indica ◽  
Folk Medicine ◽  
Modern Medicine ◽  
Structured Interviews ◽  
Medicinal Uses ◽  
Traditional Medicines ◽  
Host Trees ◽  
Medicinal Value ◽  
Ancient Times ◽  
Similar Location

Indigenous knowledge on the usage of medicinal plants all over the world precedes the origin of modern medicine in healthcare system. Plants have given many health benefits to humans since ancient times. Drynaria quercifolia commonly called Oak Leaf Fern, is used in traditional medicinal system by different groups of people to treat various kinds of health problems however, in Ayurvedic System of Medicine it is sold in the name of ‘Ashwakatri’. The present study aims to document the traditional medicinal knowledge on Drynaria quercifolia in the Kodagu district. The folk knowledge believes that the host specific Drynaria quercifolia has considered as strong and effective medicine. This ferns collected from only specific tree species can be extracted for its medicinal value. Paper also deals with the tradition information on the preparation and consumption of folk medicine. Though the medicinal uses of Drynaria quercifolia has been described by many workers, the practice of traditional medicines significantly varies from region to region and also in the similar location of the same region. The survey was conducted in the Kodagu district of Karnataka to document the traditional medicinal usage of fern Drynaria quercifolia. To generate the information on traditional knowledge, frequent discussions and semi-structured interviews with folk healers viz., natividyas, knowledgeable individuals and forest tribes. Based on the results of the study it is found that this species is used for curing jaundice as folk medicine and the medicinal value of the fern which is extracted only from those individuals growing on specific host trees viz., Artocarpus hirsutus, Ficus mysorensis, F. benghalensis and Mangifera indica have found the effective results than the species growing on other trees. Study concluded that the host specific trees of Drynaria quercifolia are more effective in treating ailments.

The soft scale (Coccidae) associates of Malaysian ant-plants

1998 ◽  
Vol 14 (4) ◽  
pp. 427-443 ◽  
Author(s):  
Hans-Peter Heckroth ◽  
Brigitte Fiala ◽  
Penny J. Gullan ◽  
Azarae HJ. Idris ◽  
Ulrich Maschwitz
Keyword(s):  
Host Plant ◽  
Host Species ◽  
Peninsular Malaysia ◽  
Scale Insects ◽  
Soft Scale ◽  
Genus Level ◽  
The Family ◽  
Single Host ◽  
Taxonomic Research ◽  
Host Plant Specificity

Myrmecophytic species of the Paleotropical plant genus Macaranga (Euphorbiaceae) have hollow stems that are almost always occupied by ants of the genus Crematogaster and scale insects of the family Coccidae (Hemiptera: Coccoidea). The coccids have a cryptic endophytic lifestyle and are confined to this microhabitat. They are much more diverse than previously recognised. First data are presented on the diversity, prevalence, specificity and distribution of the coccids associated with myrmecophytic Macaranga species. Twenty-two species of Coccidae in total, including 15 previously unknown from Macaranga, were discovered from 19 species of Macaranga in Peninsular Malaysia and Borneo. The original describers tentatively assigned the known coccid species to Coccus (Coccinae) but the Macaranga coccids still require taxonomic research to establish their correct placing. The coccids varied in their host-plant specificity from species that occurred in most of the sampled Macaranga to one species that was found almost exclusively only on a single host species. In addition to their occurrence on Macaranga, only three species, C. macarangae and C. secretus and morphospecies C. 214 were found on rare occasions in the stem interior of a few other myrmecophytes and in a non-myrmecophytic liana, but did not regularly colonise these plants. Most of the coccids can be regarded as highly specific at the plant genus level.

Effects of egg load on the host-selection behaviour of Helicoverpa armigera (HÜbner) (Lepidoptera : Noctuidae)

1998 ◽  
Vol 46 (3) ◽  
pp. 291 ◽  
Author(s):  
Mustapha F. A. Jallow ◽  
Myron P. Zalucki
Keyword(s):  
Host Plant ◽  
Helicoverpa Armigera ◽  
Physiological State ◽  
Egg Load ◽  
Host Plant Selection ◽  
Plant Selection ◽  
Helicoverpa Armígera ◽  
Host Plant Specificity ◽  
Lepidoptera Noctuidae ◽  
Effect Of Age

We examined the effect of age-specific fecundity, mated status, and egg load on host-plant selection by Helicoverpa armigera under laboratory conditions. The physiological state of a female moth (number of mature eggs produced) greatly influences her host-plant specificity and propensity to oviposit (oviposition motivation). Female moths were less discriminating against cowpea (a low-ranked host) relative to maize (a high-ranked host) as egg load increased. Similarly, increased egg load led to a greater propensity to oviposit on both cowpea and maize. Distribution of oviposition with age of mated females peaked shortly after mating and declined steadily thereafter until death. Most mated females (88%) carried only a single spermat-ophore, a few females (12%) contained two. The significance of these findings in relation to host-plant selection by H. armigera, and its management, are discussed.

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