Anatomical and morphological features of seedlings of some Cactoideae Eaton (Cactaceae Juss.) species

Kalashnyk, H.V.; Nuzhyna, N. V.; Gaidarzhy, M. M.

doi:10.5586/aa.1697

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…ickening of the outer cell wall of the leaf epidermis protects against dehydration, and is observed in different species of plants which are exposed to intense insolation and in regions with low water availability (Kalashnyk et al, 2016;Lobo et al, 2013;Nuzhyna & Tkachuk, 2019;Nuzhyna et al, 2020;Schreiber et al, 2006). Such thickening of the cell wall was found in plants of genotypes DAR12 and L59.…”

Section: Discussionmentioning

confidence: 95%

Preservation of Features of Anatomical Polymorphism of Deschampsia antarctica É. Desv. (Poaceae) During In Vitro Clonal Reproduction

et al. 2021

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We studied the anatomical features of the leaf structure of Deschampsia antarctica É. Desv. (Poaceae) obtained from seeds collected from different habitats of the maritime Antarctic. These plants have been maintained in culture in vitro for more than 7 years. The plants include stable chromosome forms comprising diploids (2 n = 26), a diploid plant with B-chromosomes (2 n = 26 + 0–3B), a triploid with rearranged chromosome morphology, and myxoploids with different ratios of diploid and nondiploid cells in the root meristem. The D. antarctica plants that were studied generally had a similar anatomical structure in culture in vitro and in nature. At the same time, plants of different cultivated genotypes also displayed their own leaf structure features. In particular, qualitative features included asymmetric four-ribs and five-rib leaves instead of typical three-rib leaves for some genotypes, some individuals characterized by the presence of unicellular nonglandular pointed trichomes on an adaxial side, differences in vascular bundle sheath, and other features. No clear dependence of the anatomical structural features on the chromosomal status of the studied genotypes was evident. At the same time, differences were evident in traits that included the number of stomata, thickness of the outer cell walls of the epidermis, bundles sheath state, number of leaf ribs, and the persistent presence of trichomes under prolonged in vitro cloning. The findings indicate that D. antarctica plants collected from different locations of the maritime Antarctic for long-term cultivation in vitro under standard cultivation conditions retain the anatomical characteristics of the wild plants. The polymorphism of in vitro-cultivated plants is not related to the polymorphism of their karyotype, but is apparently due to the heterogeneity of the original plants and possibly the epigenetic fixation of a number of anatomical features produced in the natural microhabitats of D. antarctica populations.

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Section: Discussionmentioning

confidence: 95%

Preservation of Features of Anatomical Polymorphism of Deschampsia antarctica É. Desv. (Poaceae) During In Vitro Clonal Reproduction

et al. 2021

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“…The wild D. caespitosa Ush has a much larger adaxial and abaxial epidermis thickness than D. antarctica in both natural population plants and in vitro cultivars. At the same time, for D. caespitosa, thickening of the outer epidermis cell wall, which is a xerophytic trait, prevents dehydration and is observed in various plant species at sites of intense insolation and low water availability (Schreiber et al 2006;Lobo et al 2013;Nuzhyna and Gaydarzhy, 2015;Kalashnyk et al 2016). Bystrzejewska-Piotrowska and Urban (2009) found a high degree of adaptability of the photosynthetic apparatus in D. antarctica and the absence of such feature in D. caespitosa from a more moderate climate.…”

Section: Discussionmentioning

confidence: 99%

Polish Polar Research

Nuzhyna,

Parnikoza,

Poronnik

et al. 2019

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This paper presents a comparative study on the anatomy of the Antarctic hairgrass (Deschampsia antarctica É. Desv.) from natural populations of two distant maritime Antarctic regions: the Argentine Islands (Antarctic Peninsula region) and the Point Thomas oasis (King George Island, South Shetland Islands). Comparison of D. antarctica plants from natural populations of Argentine Islands region and plants originated from seeds of these populations cultivated in vitro also was made. Additionally anatomical features of Deschampsia antarctica were compared with ones for D. caespitosa. The results of our study do not provide enough evidence to assert more pronounced xerophytic anatomical features in D. antarctica plants from more harsh conditions of Argentine Islands region. Such features (both qualitative and quantitative) of D. antarctica mainly depend on local conditions, and not on the latitudinal or climatic gradient. In both regions it is possible to find individuals that represent different ecotypes which are adopted to open arid or more humid habitats. It has been shown that Antarctic hairgrass plants germinated from seeds and cultivated in vitro retain the qualitative anatomy features that are typical to plants from the initial natural populations. This is especially noticeable in the case of plants from Berthelot Island (BE1 study plots), which might indicate a genetic fixation and a manifested differentiation similar to DNA haplotypes or chromosomal forms. However, quantitative characteristics, in particular the epidermis parameters, are subject to changes due to the transfer to more favourable conditions. Also qualitative and quantitative difference of D. antarctica in contrast with D. caespitosa have been described. These differences could be useful for identifying these two species. Additionally the quantitative differences (such as the area of the epidermal cells and the number and size of stomata on the adaxial surface) of Alaskan D. caespitosa grown from seeds were detected in contrast to the naturally grown plants of the same species from Ushuaia.

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“…Cacti are classified into three subfamilies (Cactoideae, Opuntioideae and Pereskioideae) that consist of about 100 genera and over 1500 species [10,11]. Despite the broad ecological occurrence, these plants are sensitive to environmental changes, which resulted in placing over 1000 species of the Cactaceae family on the IUCN Red List of Threatened Species [12].…”

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<i>Fusarium oxysporum</i> as a Pathogen of Pot Plants: a Case Study of the Easter Lily Cactus (<i>Echinopsis oxygona</i>) in Poland

Ogórek¹,

Piecuch²,

Kędzior³

2021

Pol. J. Environ. Stud.

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Houseplants for centuries have served people as the adornment of house, garden or public places, and are classified into two groups: blooming and foliage plants. They provide aesthetic and soothing value, thus should be free from disease and damage caused by phytophages [1]. It has been also proved that pot plants improve physicochemical conditions of the household by increasing the humidification of the air, which lowers air temperature and cleanses it from harmful substances released from carpets or wallpapers. Such plants are also known for their ability to reduce noise [2,3]. Some common houseplants are beneficial for health as they produce oxygen and remove toxic compounds like benzene, formaldehyde or trichloroethylene from the air [4]. Thus, indoor plant care is recommended in houses and office space due to plant air-cleaning

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Anatomical and morphological features of seedlings of some Cactoideae Eaton (Cactaceae Juss.) species

Cited by 6 publications

References 25 publications

Preservation of Features of Anatomical Polymorphism of Deschampsia antarctica É. Desv. (Poaceae) During In Vitro Clonal Reproduction

Preservation of Features of Anatomical Polymorphism of Deschampsia antarctica É. Desv. (Poaceae) During In Vitro Clonal Reproduction

Polish Polar Research

<i>Fusarium oxysporum</i> as a Pathogen of Pot Plants: a Case Study of the Easter Lily Cactus (<i>Echinopsis oxygona</i>) in Poland

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