Characteristics of plant species which store different types of reserve carbohydrates

1989 ◽  
Vol 112 (2) ◽  
pp. 255-260 ◽  
Author(s):  
K. JANE BROCKLEBANK ◽  
GEORGE A. F. HENDRY
1998 ◽  
Vol 72 (2) ◽  
pp. 111-121 ◽  
Author(s):  
M. S. RIDOUT ◽  
S. TONG ◽  
C. J. VOWDEN ◽  
K. R. TOBUTT

Ritter & Salamini (1996) presented a systematic account of two-point linkage analysis in allogamous diploid plant species. Vowden et al. (1995) described an alternative approach that is implemented in a computer program LINKEM. This paper describes how the latter approach has been extended to three-point linkage analysis, and implemented in a new program LINK3EM that is available from the authors. The essence of the approach is for the computer program to derive the appropriate form of analysis for a specific cross from its ‘knowledge’ of the most general type of cross that can arise. This avoids the need for programming specific codes for the many different types of cross that can arise. The program allows different locus orderings and parental phases to be compared. The Haldane or Kosambi map functions can be specified, although it is also possible to estimate all three pairwise recombination fractions without any assumed map function.


Author(s):  
Mark A. McPeek

This chapter examines ecological opportunities that are available to species in various positions within a biological community, with particular emphasis on identifying the criteria necessary for an ecological opportunity to exist. Before discussing what performance capabilities a species must have to fill different types of ecological opportunities and what is required for invasibility of species into different functional positions in a community, the chapter considers the different frameworks that have been used to model species interactions. It then describes resource and apparent competition to show how resource availability from below and predation pressure from above can affect the types of species that can exploit specifc ecological opportunities. It also analyzes communities with three trophic levels, intraguild predation or omnivory, mutualism, the mechanisms that foster coexistence between one plant species and one pollinator species, and the case of one plant species with multiple pollinators.


2015 ◽  
Vol 19 (2) ◽  
pp. 79-85 ◽  
Author(s):  
S.H. Timilsina ◽  
N.B. Singh

The main purpose of the study was to document the medicinal animals and plants used by the unique ethnic group; ‘Balami’, native of Okharpauwa VDC of Nuwakot district. The information was collected in the area using an integrated approach of zoological and botanical collections, group discussions, interviews and questionnaires. It enumerates an account of ethnography with the list of 65 animal species belonging to 31 orders, 46 families and 62 genera. Out of which 55 species are wild and 10 species are domesticated. The Balami utilize these animals mainly for food, medicine, companion, ceremony, agriculture etc. They use 15 species of animals for medicinal purpose among which 13 are wild and 2 are domesticated to cure 16 different types of diseases. Balami have brought altogether 185 different plant species into use. Among them 80 species are brought from the local forest, 87 species are cultivated and 18 species of the plants are purchased from the nearest market. These plant species are included under 65 families and 151 genera. They use 45 different plant species to cure 55 different diseases out of which 32 are wild, 12 are cultivated and 1 is purchased from the remote area. The present inventory will play a catalytic role for implementation of development programs in the region, recommendations of the conservation and sustainable use based on indigenous knowledge from the elder to the younger generations.Journal of Institute of Science and Technology, 2014, 19(2): 79-85


2018 ◽  
Vol 3 (1) ◽  
pp. 291-295
Author(s):  
Pavol Kaššák ◽  
Katarína Kaffková

Abstract This study is presenting results from an experiment with two well-known dye plants and their interaction with different types of textile fibres. Briefly, fresh and dry inflorescences of Tagetes patula and dry inflorescences of Tanacetum vulgare were used for the preparation of a dyeing bath. Then, different samples of cloth (made from natural plant fibres (wool), artificial fibres (sloter and ortalion), both artificial and plant fibres (canvas) and natural animal fibres (wool)) were immersed into the hot dyeing baths. Results showed that both chosen plant species are suitable for textile dyeing, but they differ in colour density.


2011 ◽  
Vol 31 (1) ◽  
pp. 12-30
Author(s):  
Vita Vita

A variety of plant species that exist today reflect the diversity of plant species as well as how pre-existing or in the past, the area along the environmental conditions are not much changed significantly. Plant communities in a region will illustrate the diversity of plant species tolerant to environmental conditions in the area. The power plant tolerance to different environmental factors will lead to different types of plants that live in the area By using HF method and Acetolysis, then the results of the identification of fossil pollen (pollen analysis) that has been done specifically on a sample of soil /sediment from the findings of pottery, as well as the box has been opened at the excavation site Pemuteran, Buleleng Regency, Bali Province randomly, especially in layer B in test pit 4 and 5, the types derived from fossil pollen from plants derived from plants that are useful in the family Compositae, Poaceae, Malvaceae and Papilionaceae. In addition, there is also a pollen that is not available on the site around Pemuteran, such as the family Pinaceae, Fagaceae, Daphnae, Sequoia, Geraniaceae, Cupressus.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Leslie Mann ◽  
Diane Laplanche ◽  
Ted C. J. Turlings ◽  
Gaylord A. Desurmont

AbstractInsect and gastropod herbivores are major plant consumers and their importance in the evolution of plant defensive traits is broadly recognized. However, their respective effects on plant responses have rarely been compared. Here we focused on plant volatile emissions (VOCs) following herbivory and compared the effects of herbivory by caterpillars of the generalist insect Spodoptera littoralis and by generalist slugs of the genus Arion on the VOCs emissions of 14 cultivated plant species. Results revealed that plants consistently produced higher amounts of volatiles and responded more specifically to caterpillar than to slug herbivory. Specifically, plants released on average 6.0 times more VOCs (total), 8.9 times more green leaf volatiles, 4.2 times more terpenoids, 6.0 times more aromatic hydrocarbons, and 5.7 times more other VOCs in response to 1 cm2 of insect damage than to 1 cm2 of slug damage. Interestingly, four of the plant species tested produced a distinct blend of volatiles following insect damage but not slug damage. These findings may result from different chemical elicitors or from physical differences in herbivory by the two herbivores. This study is an important step toward a more inclusive view of plant responses to different types of herbivores.


1989 ◽  
Vol 67 (8) ◽  
pp. 2245-2251 ◽  
Author(s):  
Ruhama Berliner ◽  
John G. Torrey

An estimate was made of the abundance of different types of mycorrhizal associations in two plant communities of conifers and hardwoods in the Harvard Forest. Lists of plant species, the coverage of their foliage in the canopy and understorey layers, and the types of mycorrhizal associations for 45 species common in these communities are presented. Of the species examined, 91 % were mycorrhizal, representing most of the known major types, viz. ectomycorrhiza, vesicular–arbuscular mycorrhiza (VAM), ericoid, and monotropoid mycorrhiza. Of the 45 species studied, 22% of the species showed ectomycorrhizal, and 71 % VAM associations. A direct spore count was a more reliable method than the most probable number method for determining VAM occurrence in the soil. Spore numbers ranged from 4.4 to 11.8 spores/g oven-dried soil. In conifer stands, ectomycorrhizae were most common, although VAM were also observed in the conifer species. In hardwood stands, VAM were more frequent than in conifer stands, but mycorrhizae were heterogeneous and included a good proportion of the ericoid type. Ectomycorrhizae were more common in communities of low diversity; VAM occurred more frequently in communities of high plant species diversity.


UNICIÊNCIAS ◽  
2018 ◽  
Vol 22 (1) ◽  
pp. 38
Author(s):  
Patrícia Tâmara Alves Rodrigues ◽  
Ravely Casarotti Orlandelli

Diversos poluentes – tais como: os compostos orgânicos e inorgânicos e metais pesados, resultantes de atividades antrópica – contribuem com a degradação de ambientes terrestres e aquáticos. Nesse cenário, surge a fitorremediação: uma técnica de biorremediação, em que determinadas espécies de plantas são utilizadas como agentes de descontaminação, removendo, imobilizando ou tornando os contaminantes menos ofensivos ao ecossistema. Embora recente, essa técnica tem apresentado respostas positivas concernentes à descontaminação de água e solos. Assim, o presente artigo teve como objetivo relacionar diferentes espécies de plantas com potencial remediador frente a diversos tipos de contaminantes. Para tanto, foi realizada uma revisão da literatura científica nacional e internacional, a partir da busca de estudos disponíveis no Google Acadêmico, PubMed, Portal de Periódicos da CAPES, SciELO, além de livros de referência, dissertações e teses. As publicações analisadas atestaram que, embora seja uma tecnologia ainda em desenvolvimento, são notáveis diversas vantagens da fitorremediação, como o baixo custo de implantação e sua natureza não invasiva. Além disso, pode ser destacado o potencial fitorremediador recentemente descrito para diferentes espécies vegetais.Palavras-chave: Fitorremediação. Descontaminação Ambiental. Metais Pesados. Herbicidas. Efluentes Industriais.AbstractSeveral pollutants – such as organic and inorganic compounds and heavy metals, resulting from anthropic activities – contribute to the errestrial and aquatic environments degradation. In this scenario, phytoremediation emerges: a bioremediation technique in which certain plant species are used as decontamination agents, removing, immobilizing or making the contaminants less offensive to the ecosystem. Although recent, this technique has presented positive results concerning the water and soil decontamination. Thus, the present article aimed at relating different plant species with potential to remediate different types of contaminants. For this, a review of the national and international scientific literature was carried out, based on the search of studies available in Google Scholar, PubMed, CAPES Periodicals Portal, SciELO, as well as reference books, dissertations and theses. The analyzed publications show that, although it is a technology still in development, several advantages of phytoremediation are remarkable, such as the low cost of implantation and its noninvasive nature. Moreover, the phytoremediation potential recently described for different plant species can be higlighted.Keywords: Phytoremediation. Environmental Decontamination. Heavy Metals. Herbicides. Industrial Effluents.


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