Cytological and embryological studies of anther in rice (Oryza sativa) cv. 'Rocca'

Dane, Feruzan; Meric, Ciler

doi:10.1556/abot.47.2005.3-4.4

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…According to Ekici and Dane (2004), this region, to which the nucleus migrates during pollen mitosis, determines the location of generative cells and is controlled genetically. These events are similarly seen in the other monocotyledones such as Tulipa clusiana (Liliaceae) (Wafai and Koul 1982), Oryza sativa (Poaceae) (Dane and Meric 2005), Bellevalia edirnensis (Hyacinthaceae) (Dane 1999), Agapanthus praecox (Agapanthaceae) (Zhang et al 2010) and Leucojum aestivum (Amaryllidaceae) (Ekici and Dane 2012).…”

mentioning

confidence: 72%

Microsporogenesis, microgametogenesis andin vitropollen germination in the endangered speciesFritillaria stribrnyi(Liliaceae)

Kartal

2015

Caryologia

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Fritillaria stribrnyi Velen. (Liliaceae) is an endangered plant that naturally grows only in southern Bulgaria and Turkey in Europe. In this study, microsporogenesis, microgametogenesis, in vitro pollen germination and spermatogenesis were investigated in F. stribrnyi using a light microscope. Young flower buds and mature pollen grains, collected from natural habitats (in Edirne, Turkey), were used as materials. Microsporogenesis was investigated by the usual acetic-orcein squash method. Microgametogenesis slides were prepared with the paraffin method. Pollen fertility was estimated by lactophenol-aniline blue staining. For pollen germination, pollen grains were collected by immediately dehiscing anthers and then incubating in basic germination medium at 25°C for 24 h. Generally, the phases of meiosis were regular, although there were a few abnormalities such as laggard chromosomes in meiosis I and asynchronization in phases of meiosis II. The meiotic division resulted in the formation of isobilateral types of tetrads. The first mitotic division in pollen was observed clearly, and generative and vegetative cells were formed regularly. The germination percentage of pollen grains was found to be 84%, and the lengths of tubes were measured as 1896.22 ± 760.50 μm. F. stribrnyi has an elegant flower, and, therefore, its cultivation is possible in the garden as an ornamental plant. This is the first embryological study of F. stribrnyi, and the results of this study of the reproduction biology of this endangered plant will be useful for in vitro, in situ and ex situ conservation and genetic studies.

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confidence: 72%

Microsporogenesis, microgametogenesis andin vitropollen germination in the endangered speciesFritillaria stribrnyi(Liliaceae)

Kartal

2015

Caryologia

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“…The most frequent chromosome counting protocols use root tip cells from young seedlings, the chromosome number being established during mitotic cell division, although counting of mitotic chromosomes arrested in metaphase is generally easier and faster (Fukui and Nakayama 1996;Sharma and Sharma 1999). Other tissues used for determination of chromosome complements include seeds and endosperm, such as in maize (Jones 1941) and coconut (Abraham and Mathew 1963), tapetal cells of maize (Chiavarino et al 2000) and microspore mother cells of rice at diakinesis (Dane and Meric 2005).…”

Section: Chromosome Countingmentioning

confidence: 99%

Ploidy level determination within the context of in vitro breeding

Ochatt

Patat-Ochatt

Moessner

2011

Plant Cell Tiss Organ Cult

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Variations in genome size and chromosome complement of species provide very useful information for biosystematic studies, and also because they influence a range of ecological characteristics. They are also of utmost importance for breeding, especially when in vitro biotechnology tools are used and the need arises to assess the trueness-to-type of regenerated plants. Thus, protocols have existed for a long time for chromosome counting, and more recently also for the determination of the relative nuclear DNA content and genome size. It has also been shown that these latter traits are strongly correlated to regeneration competence and, more generally, to developmental processes in plants. This article will briefly review such approaches from a methodological and breeding-oriented viewpoint.

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“…This reduction in shoot biomass of seawater-stressed plants could be attributed to inadequate availability of nutrients present in growth medium and the decreased water entry rate into the plants and the decreased in photosynthetic output with suppressed supply of CO2. In this study, the deleterious effect of salinity on root biomass may be attributed to the inhibitory effect of abscisic acid (ABA), induced by salinity, on cell division and cell expansion as stated by Hassanein [27] or reduced water absorption due to osmotic effect, specific ion toxicity and nutritional imbalances as mentioned by Tahir et al [28] and Joseph et al, [29]. Two authors have been reported similar effect of salinity on root and shoot length of Triticum aestivum L. Rahman et al, [30] and of Solanum melongena L. Basalah [31].…”

Section: Biomass Statusmentioning

confidence: 85%

Morpho-physiological Alteration of Mangifera indica L. in Response to Sea Water Induced Salt Stress

Mou,

Riyadh,

Mia

et al. 2024

APRJ

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Salinity is one of the biggest challenges in the southern part of Bangladesh, which is affecting the coastal ecosystem adversely. A pot experiment was conducted to find out the morpho-physiological changes in mango (Mangifera indica L.) seedlings in response to sea water induced salt stress at the Agroforestry and Environment research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU). The experiment was laid out in a Randomized Complete Block Design (RCBD) with five replications, where four treatments, viz 4, 8, 12 dS m-1 salinity level (prepared from sea water), and the tap water (control) were imposed. The results indicated that plant height of mango shortened with the higher level of salinity and the declining magnitude was 28.44% over control at maximum salinity level. Number of leaves per plant of mango were reduced by 27.51% at 12 dS m-1 salinity level compared to that tap water, and the size of mango leaf was also reduced for salinity. Both shoot and root biomass of mango seedlings were significantly reduced due to salinity. The Salt tolerance index in mango was 56.76 only at 12 dS m-1. In case of physiological parameters, the lowest relative water content (RWC) was found in 12 dS m-1, while water saturation deficit (WSD) and water uptake capacity (WUC) were found to be the lowest in control for this plant. Water saturation deficit and water uptake capacity were increased with the increment of salinity level. Total chlorophyll and carotenoid content of mango were decreased by 66.27% and 61.07%, respectively, at the highest salinity level. Proline content of mango increased by 73.07% at 12 dS m-1 salt level in comparison to that of seawater devoid control plants. Considering the overall results, it can be concluded that, although mango seedlings were significantly affected by high salinity (12 dS m-1), but can survive up to moderate salinity (8 dS m-1) at sapling stage.

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Cytological and embryological studies of anther in rice (Oryza sativa) cv. 'Rocca'

Cited by 9 publications

References 19 publications

Microsporogenesis, microgametogenesis andin vitropollen germination in the endangered speciesFritillaria stribrnyi(Liliaceae)

Microsporogenesis, microgametogenesis andin vitropollen germination in the endangered speciesFritillaria stribrnyi(Liliaceae)

Ploidy level determination within the context of in vitro breeding

Morpho-physiological Alteration of Mangifera indica L. in Response to Sea Water Induced Salt Stress

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