scholarly journals Morphobiochemical features of plant adaptation in the Northern forest-steppe of Western Siberia

2021 ◽  
pp. 108-115
Author(s):  
O. O. Vronskaya ◽  
O. L. Zandekova
Keyword(s):  
Western Siberia ◽  
Seasonal Development ◽  
Forest Steppe ◽  
Adaptive Potential ◽  
Northern Forest ◽  
The Family ◽  
Phases Of Development ◽  
Phenological Phases

The article presents the results of long-term research on the adaptive potential of plants of the genus Iris of the family Iridaceae in the Northern forest-steppe of Western Siberia. An assessment of the morphobiological features of irises was carried out, the timing of flowering and the amount of positive temperatures necessary for the onset of such phenological phases of development as regrowth, budding, flowering and fruiting were determined. The indicator role of phenolic compounds and peroxidase in iris leaves during seasonal development was revealed. The studied indicators can be used as an informative parameter for evaluating the state of plants for phyto-indication and introduction.

scholarly journals The Potential of Using the New Species Monarda Didyma L. for Introduction in Western Siberia

2021 ◽  
Author(s):  
Aastasia Kriklivaya ◽  
Nikolay Shorin
Keyword(s):  
New Species ◽  
Life Form ◽  
Western Siberia ◽  
Late Summer ◽  
Seasonal Development ◽  
Adaptive Potential ◽  
Temperature Thresholds ◽  
Practical Tool ◽  
Monarda Didyma ◽  
Phenological Phases

This article examines the introduction and use of the new species Monarda didyma L. in the conditions of Western Siberia. The rhythm of the seasonal development of the longrhizome-taprhizome life form was investigated. The timing and duration of the basic phenological phases were determined and their temperature thresholds were identified. Based on the phenological development, it was established that M. didyma can be classified as a long-growing evergreen plant. According to the identified blossoming period, the species falls into the long-flowering late-summer group. The presented phenological spectrum represents an important comparative and practical tool for Western Siberia and other geographical areas. The new species has a promising outlook for cultivation in Western Siberia and possesses a high adaptive potential, which allows for its use as an essential-oil-bearing, aromatic, decorative and melliferous plant. Keywords: M. didyma, of using, introduction, rhythm of seasonal development

Biological features of Iris setosa in the forest-steppe zone of Western Siberia

2020 ◽  
Vol 19 (1) ◽  
pp. 55-59
Author(s):  
L. L. Sedelnikova
Keyword(s):  
Growth Cone ◽  
Western Siberia ◽  
Steppe Zone ◽  
Early Spring ◽  
Seasonal Development ◽  
Forest Steppe ◽  
Adaptive Potential ◽  
Vegetative Organs ◽  
Second Stage ◽  
Generative Organs

The seasonal rhythm of development of Iris setosa during the growing season of 2016–2018 in the conditions of the forest-steppe zone of Western Siberia is analyzed. It was determined that in the pre-winter the cone of growthof the renewal shoot forms vegetative organs-leaves, which corresponds to the second stage of organogenesis. Differentiation of the growth cone of the shoot to generative organs begins in early spring in May during a period of intensivegrowth. Within 14–15 days, the growth cone undergoes intrarenal development from stages III to VIII of organogenesis.IX–XII stages of organogenesis correspond to phenodates from flowering to fruiting. The duration of flowering is 10–25days. Plants undergo a full cycle of seasonal development from regrowth to fruiting, have high cold resistance, resistanceto diseases and pests. In the forest-steppe zone of Western Siberia, the adaptive potential of I. setosa is 23–30 points. Itwas found that according to the adaptation criteria, highly promising plants of I. setosa from the Trans-Baikal population.

scholarly journals The crucial role of genome-wide genetic variation in conservation

2021 ◽  
Vol 118 (48) ◽  
pp. e2104642118
Author(s):  
Marty Kardos ◽  
Ellie E. Armstrong ◽  
Sarah W. Fitzpatrick ◽  
Samantha Hauser ◽  
Philip W. Hedrick ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Environmental Changes ◽  
Population Viability ◽  
Adaptive Potential ◽  
Biodiversity Crisis ◽  
Genome Wide ◽  
Simulation Based ◽  
Functional Genetic Variation

The unprecedented rate of extinction calls for efficient use of genetics to help conserve biodiversity. Several recent genomic and simulation-based studies have argued that the field of conservation biology has placed too much focus on conserving genome-wide genetic variation, and that the field should instead focus on managing the subset of functional genetic variation that is thought to affect fitness. Here, we critically evaluate the feasibility and likely benefits of this approach in conservation. We find that population genetics theory and empirical results show that conserving genome-wide genetic variation is generally the best approach to prevent inbreeding depression and loss of adaptive potential from driving populations toward extinction. Focusing conservation efforts on presumably functional genetic variation will only be feasible occasionally, often misleading, and counterproductive when prioritized over genome-wide genetic variation. Given the increasing rate of habitat loss and other environmental changes, failure to recognize the detrimental effects of lost genome-wide genetic variation on long-term population viability will only worsen the biodiversity crisis.

scholarly journals The resource role of flowering woody plants in increasing the insects biological diversity

2021 ◽  
Vol 38 ◽  
pp. 00067
Author(s):  
Tatiana Kuzmina ◽  
Elena Toropova
Keyword(s):  
Plant Species ◽  
High Power ◽  
Woody Plants ◽  
Woody Plant ◽  
Biological Diversity ◽  
Taxonomic Composition ◽  
Forest Steppe ◽  
Flowering Period ◽  
Northern Forest

The aim of the study was to assess the resource role of flowering woody plants in maintaining the biological diversity of insects. The studies were carried out in 2019–2020 in the northern forest-steppe of the Ob region during the flowering period of woody plants from the Oleaceae family of the genus Syringa: S. josikaea J. and S. vulgaris L. Insects were collected by mowing with an entomological net in the crowns and under-crown space. The flowering of plants attracted insects from more than 25 families from 7 orders. The largest number of insects belonged to the order Thysanoptera 79.2%, followed by representatives of the orders Hemiptera (7.1%) and Diptera (6.4%). The entomological faunas of S. josikaea and S. vulgaris differed significantly in their taxonomic composition, insects abundance, and their association with flowering periods. Low coefficients of similarity and high power of the factor “plant species” influence on biological diversity and the insects number were revealed. S. josikaea played a more significant role in maintaining the biological diversity of insects. Research showed that insects are associated with a certain species of woody plant.

The Things that Help, the Things that Get in the Way: Working Together to Improve Outcome Following Acquired Brain Injury

2018 ◽  
Vol 19 (3) ◽  
pp. 258-269 ◽  
Author(s):  
Jacinta M. Douglas
Keyword(s):  
Brain Injury ◽  
Acquired Brain Injury ◽  
Life Changes ◽  
Major Life ◽  
The Family ◽  
Working Together ◽  
The Impact ◽  
The Way

Working in neurological rehabilitation brings with it numerous opportunities to gain an understanding of the factors that contribute to shaping meaningful living and wellbeing for those tackling the major life changes encountered following acquired brain injury (ABI). These opportunities come in many forms: challenging and brave clients, wise and worrying families, questioning and inspiring colleagues, empowering and limiting work environments and rigid and advancing policy and legislative contexts.Our personal and collective understanding ofthe things that helpandthe things that get in the wayof effective rehabilitation continuously emerges from the convergence of the experience and knowledge afforded by these opportunities. The aim of this paper is to considerthe things that helpandthe things that get in the wayas they have been identified by people with ABI, their families and those who work with them and have been further evidenced through research targeted towards improving short, medium and long-term outcomes for those living with the consequences of ABI. Thesethingsas discussed in this paper capture the essential role of the self, the importance of rights and access to rehabilitation, the impact of the family and the contribution of social connection.

scholarly journals Novel Astroviruses in Insectivorous Bats

2008 ◽  
Vol 82 (18) ◽  
pp. 9107-9114 ◽  
Author(s):  
D. K. W. Chu ◽  
L. L. M. Poon ◽  
Y. Guan ◽  
J. S. M. Peiris
Keyword(s):  
Virus Detection ◽  
High Genetic Diversity ◽  
Insectivorous Bats ◽  
Detection Rates ◽  
Human Astroviruses ◽  
Wide Range ◽  
The Family ◽  
Apparently Healthy

ABSTRACT Bats are increasingly recognized to harbor a wide range of viruses, and in most instances these viruses appear to establish long-term persistence in these animals. They are the reservoir of a number of human zoonotic diseases including Nipah, Ebola, and severe acute respiratory syndrome. We report the identification of novel groups of astroviruses in apparently healthy insectivorous bats found in Hong Kong, in particular, bats belonging to the genera Miniopterus and Myotis. Astroviruses are important causes of diarrhea in many animal species, including humans. Many of the bat astroviruses form distinct phylogenetic clusters in the genus Mamastrovirus within the family Astroviridae. Virus detection rates of 36% to 100% and 50% to 70% were found in Miniopterus magnater and Miniopterus pusillus bats, respectively, captured within a single bat habitat during four consecutive visits spanning 1 year. There was high genetic diversity of viruses in bats found within this single habitat. Some bat astroviruses may be phylogenetically related to human astroviruses, and further studies with a wider range of bat species in different geographic locations are warranted. These findings are likely to provide new insights into the ecology and evolution of astroviruses and reinforce the role of bats as a reservoir of viruses with potential to pose a zoonotic threat to human health.

scholarly journals The order Tethyida (Porifera) in California: taxonomy, systematics, and the first member of the family Hemiasterellidae in the Eastern Pacific

2020 ◽  
Author(s):  
Thomas L. Turner
Keyword(s):  
Kelp Forest ◽  
Single Species ◽  
Ecological Monitoring ◽  
Eastern Pacific ◽  
The Third ◽  
Morphological Taxonomy ◽  
The Family ◽  
Ecological Importance

AbstractSponges (phylum Porifera) are ubiquitous inhabitants of marine ecosystems and have been shown to provide substantial ecosystem services. Despite this ecological importance, the sponge fauna in California has received little study. Here I use a collection of kelp forest sponges to describe the diversity of the order Tethyida in California. This order contains the genus Tethya, which has been included in long-term ecological monitoring projects. I show that Tethya vacua is a junior synonym of Tethya californiana, and thus all Tethya populations known in California belong to a single species. Genetic data from California’s only Timeidae, Timea authia, indicate that this species is in fact in the Tethyidae and is the third known member of the genus Tethytimea. I also describe the first member of the family Hemiasterellidae from the Eastern Pacific, Galaxia gaviotensis gen. nov. sp. nov. By combining field photographs, morphological taxonomy, and phylogenetic analysis of these samples, this work will facilitate future efforts to understand the evolution of this order and the ecological role of sponges in the California kelp forest.

scholarly journals The crucial role of genome-wide genetic variation in conservation

2021 ◽  
Author(s):  
Martin Kardos ◽  
Ellie Armstrong ◽  
Sarah W Fitzpatrick ◽  
Samantha Hauser ◽  
Philip Hedrick ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Environmental Changes ◽  
Population Viability ◽  
Adaptive Potential ◽  
Biodiversity Crisis ◽  
Genome Wide ◽  
Simulation Based ◽  
Functional Genetic Variation

The unprecedented rate of extinction calls for efficient use of genetics to help conserve biodiversity. Several recent genomic and simulation-based studies have argued that the field of conservation biology has placed too much focus on the conservation of genome-wide genetic variation, and that this approach should be replaced with another that focuses instead on managing the subset of functional genetic variation that is thought to affect fitness. Here, we critically evaluate the feasibility and likely benefits of this approach in conservation. We find that population genetics theory and empirical results show that the conserving genome-wide genetic variation is generally the best approach to prevent inbreeding depression and loss of adaptive potential from driving populations towards extinction. Focusing conservation efforts on presumably functional genetic variation will only be feasible occasionally, often misleading, and counterproductive when prioritized over genome-wide genetic variation. Given the increasing rate of habitat loss and other environmental changes, failure to recognize the detrimental effects of lost genome-wide variation on long-term population viability will only worsen the biodiversity crisis.

scholarly journals The role of variety and forecrop in the population dynamics of Rhizoctonia solani in soil

2021 ◽  
Vol 51 (1) ◽  
pp. 25-32
Author(s):  
A. A. Malyuga ◽  
N. S. Chulikova
Keyword(s):  
Population Dynamics ◽  
Rhizoctonia Solani ◽  
Growing Season ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
The Difference ◽  
Two Peaks

Long-term studies (2014–2019) of the population dynamics of the fungus Rhizoctonia solani Küch. were carried out in the soil on the Purple Majesty, Vitelotte and Fioletovy potato varieties and preceding crops (potatoes, oats and tendergreen). The study was carried out in Novosibirsk region in the soil and climatic conditions typical of the forest-steppe zone of Western Siberia. To study the peculiarities of R. solani fungus population dynamics in potato plantations, soil samples were taken from under the plants during the entire growing season. The accumulation of rhizoctonia propagules in the soil was determined using the method of multiple soil pellets. The difference in the amount and rate of accumulation of the fungus R. solani on different varieties, as well as the influence of previous crops on this process, was established. Two peaks of the fungus accumulation were observed on the Purple Majesty variety: the first (48.7 propagules/100 g of soil) – during the full germination period, the second (57.2 propagules/100 g of soil) – at the end of the crop maturation phase. One peak was observed in the population dynamics of the fungus on Vitelotte and Fioletovy varieties, at the end of the ripening period (59.0 and 49.1 propagules/100 g soil, respectively). The smallest amount of R. solani fungus in the soil on average during the growing season was noted on the Fioletovy variety – 33.3 propagules/100 g of soil. In the Purple Majesty and Vitelotte varieties, this figure was 41.5 and 40.4 propagules/100 g of soil, respectively. When potato variety Agata was cultivated as monoculture, there was a rapid and significant accumulation of the fungus R. solani in the soil (from 34.6 to 126.8 propagules/100 g of soil). When this variety was cultivated following tendergreen or oats, the amount of the pathogen varied to a lesser extent (25.1–52.2 and 19.8–41.0 propagules/100 g of soil, respectively). No sharp increases in the number of propagative structures of the phytopathogen in the soil were noted.

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