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  • Open Access

    ARTICLE

    Effect of UV Radiation and Other Abiotic Stress Factors on DNA of Different Wild Plant Species Grown in Three Successive Seasons in Alpine and Subalpine Regions

    Svetla P. Gateva1,*, Gabriele Jovtchev1, Tsveta V. Angelova1, Tzvetana P. Nonova2, Nikolay Tyutyundzhiev3, Elena G. Geleva2, Kostadin Katrandzhiev1, Nina A. Nikolova2, Dimitar Dimitrov4, Christo V. Angelov2

    Phyton-International Journal of Experimental Botany, Vol.91, No.2, pp. 293-313, 2022, DOI:10.32604/phyton.2022.016397 - 26 September 2021

    Abstract Plants in natural ecosystems are exposed to a combination of UV radiation, ionizing radiation (IR) and other abiotic factors. These factors change with the altitude. We investigated DNA alterations of some wild plants of different plant families in natural ecosystems at three altitudes in Rila Mountain, Bulgaria (1500, 1782, and 2925 m above sea level (a.s.l.) exposed to UV radiation, IR and other abiotic stresses, to assess the tolerance of plant species to the changing environmental conditions in three successive growth seasons. For this purpose, physicochemical, cytogenetic, and molecular methods were applied. DNA damage was assessed… More >

  • Open Access

    ARTICLE

    Identification of PtGai (a DELLA protein) in trifoliate orange and expression patterns in response to drought stress

    XIAOFEN CHENG1, ABEER HASHEM2,3, ELSAYED FATHI ABD_ALLAH4, QIANGSHENG WU1,5,*, KAMIL KUČA5,*

    BIOCELL, Vol.45, No.6, pp. 1687-1694, 2021, DOI:10.32604/biocell.2021.017581 - 01 September 2021

    Abstract Gibberellins (GAs) are an important hormone in regulating plant growth and development, and DELLA protein is an essential negative regulator of GA signal transduction. The aim of the study was to clone a GA-inhibiting protein DELLA from trifoliate orange (Poncirus trifoliata L. Raf.) and to analyze the bioinformations and expression patterns of the protein gene in tissues and in response to drought stress. A DELLA protein was isolated from trifoliate orange and named as PtGai (Genebank number: MZ170959). The PtGai protein had 1731 bp open reading frames, along with 576 amino acid codes, and also grouped with… More >

  • Open Access

    REVIEW

    Morpho-Physiological, Biochemical and Molecular Adaptation of Millets to Abiotic Stresses: A Review

    Seerat Saleem1, Naveed Ul Mushtaq1, Wasifa Hafiz Shah1, Aadil Rasool1, Khalid Rehman Hakeem2,*, Reiaz Ul Rehman1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.5, pp. 1363-1385, 2021, DOI:10.32604/phyton.2021.014826 - 27 May 2021

    Abstract Abiotic stresses such as drought, heat, cold, nutrient deficiency, excess salt and hazardous metals can hamper plantgrowth and development. Intensive agriculture of only a few major staple food crops that are sensitive and intolerant to environmental stresses has led to an agrarian crisis. On the other hand, nutritionally rich, gluten free and stress tolerant plants like millets are neglected and underutilized. Millets sustain about one-third of the world’s population and show exceptional tolerance to various abiotic and biotic stresses. Millets are C4 plants that are adapted to marginal and dry lands of arid and semi-arid… More >

  • Open Access

    ARTICLE

    Genome-wide identification of WRKY gene family and expression analysis under abiotic stresses in Andrographis paniculata

    QICHAO WANG1, WUJING ZENG1, BASHARAT ALI2, XUEMIN ZHANG3, LING XU1,*, ZONGSUO LIANG1,*

    BIOCELL, Vol.45, No.4, pp. 1107-1119, 2021, DOI:10.32604/biocell.2021.015282 - 22 April 2021

    Abstract Andrographis paniculata (A. paniculata) is a Chinese herbal medicine that clears away heat, reduces inflammation, protects the liver, and promotes choleretics. The WRKYs of A. paniculata are still not well characterized, although many WRKYs have been identified in various plant species. In the present study, 59 A. paniculata WRKY (ApWRKY) genes were identified and renamed on the basis of their respective chromosome distribution. These ApWRKYs were divided into three groups via phylogenetic analysis according to their WRKY domains and combined with WRKY of Arabidopsis. The 59 identified ApWRKY transcription factors were nonuniformity distributed on 23 chromosomes of A. paniculata. From the structural… More >

  • Open Access

    ARTICLE

    Genome-wide Analysis of a Plant AT-rich Sequence and Zinc-binding Protein (PLATZ) in Triticum Aestivum

    Xiaohang He1, Minjie Liu2, Zhengwu Fang1, Dongfang Ma1,2,3,*, Yilin Zhou1,3,*, Junliang Yin1

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 971-986, 2021, DOI:10.32604/phyton.2021.012726 - 30 March 2021

    Abstract Plant AT-rich sequence and zinc-binding protein (PLATZ) is a plant transcription factor that has been studied in corn. PLATZ can non-specifically bind to sequences rich in A/T bases to induce transcriptional repression. It is involved in the regulation of dehydration tolerance in seeds. In this study, we performed bioinformatics analysis to identify and characterize wheat PLATZ(TaPLATZ)genes. We identified 49 wheat PLATZ genes by searching the wheat genome by using known PLATZ gene sequences from rice, Arabidopsis, and maize. Phylogenetic analysis on PLATZ gene sequences from different species was performed. We found that PLATZs could be divided into three groups.… More >

  • Open Access

    ARTICLE

    Potassium-Induced Regulation of Cellular Antioxidant Defense and Improvement of Physiological Processes in Wheat under Water Deficit Condition

    Abdul Awal Chowdhury Masud1, Md. Fazlul Karim1, M. H. M. Borhannuddin Bhuyan2, Jubayer Al Mahmud3, Kamrun Nahar4, Masayuki Fujita5, Mirza Hasanuzzaman1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 353-372, 2021, DOI:10.32604/phyton.2021.013259 - 07 February 2021

    Abstract Drought is the most common form of abiotic stress that reduces plant growth and productivity. It causes plant injuries through elevated production of reactive oxygen species (ROS). Potassium (K) is a vital plant nutrient that notably ameliorates the detrimental effect of drought stress in the plant. A pot experiment was conducted at the Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Japan, under controlled environment of green house to explore the role of K in mitigating drought severity in wheat (Triticum asevitum L.) seedlings. Three days after germination, seedlings were exposed to three water… More >

  • Open Access

    ARTICLE

    Identification and analysis of AP2/ERF gene family in tomato under abiotic stress

    XIAOLIN ZHU1,3, XIAOHONG WEI1,3,*, BAOQIANG WANG2,3, XIAN WANG2, MINGJUN ZHANG4

    BIOCELL, Vol.44, No.4, pp. 777-803, 2020, DOI:10.32604/biocell.2020.010153 - 24 December 2020

    Abstract AP2/ERE-type transcription factors, as a type of plant-specific transcription factors, play a key role in plant biotic and abiotic stress. Meanwhile, they have been studied in many plants, but rarely in tomatoes. In this study, we performed a genome-wide analysis of the SlAP2/ERF gene family of tomato, and finally identified 29 SlAP2/ERF genes and divided them into different subfamilies. At the same time, its basic physical and chemical properties were analyzed. We also constructed phylogenetic trees with 30 Arabidopsis AP2/ERF proteins and 28 potatoes AP2/ERF proteins to ensure conservative homology between them. In addition, we mapped… More >

  • Open Access

    REVIEW

    Development of anthracnose disease resistance and heat tolerance chili through conventional breeding and molecular approaches: a review

    MST FARHANA NAZNEEN CHOWDHURY1, MOHD RAFII YUSOP1,2,*, SITI IZERA ISMAIL3, SHAIRUL IZAN RAMLEE1, YUSUFF OLADOSU2, MONIR HOSEN2, GOUS MIAH4

    BIOCELL, Vol.44, No.3, pp. 269-278, 2020, DOI:10.32604/biocell.2020.09627 - 22 September 2020

    Abstract Chili (Capsicum annuum L.) is the popular spicy vegetable crops belonging to family Solanaceae. Chili peppers are known for their pungency characteristic due to the presence of capsaicinoids that classifies them into hot or sweet pepper. Chili is used as spices, folk remedies for diseases, vegetables, and coloring agent showing a diverse role in human’s life. However, its production is hampered by different biotic stress and abiotic factors. Similarly, the unavailability of high yielding varieties, high temperature, and disease incidence, particularly, anthracnose disease, are the major constraints responsible for the low production of chili pepper. The… More >

  • Open Access

    ARTICLE

    Reference Gene Selection for Quantitative Real-Time PCR Analyses of Acer palmatum under Abiotic Stress

    Lu Zhu, Qiuyue Ma, Shushun Li, Jing Wen, Kunyuan Yan, Qianzhong Li*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 385-403, 2020, DOI:10.32604/phyton.2020.09259 - 22 April 2020

    Abstract Quantitative real-time reverse transcriptase PCR (qRT-PCR) technology has been extensively used to estimate gene expression levels, and the selection of appropriate reference genes for qRT-PCR analysis is critically important for obtaining authentic normalized data. Acer palmatum is an important colorful leaf ornamental tree species, and reference genes suitable for normalization of the qRT-PCR data obtained from this species have not been investigated. In this study, the expression stability of ten candidate reference genes, namely, Actin3, Actin6, Actin9, EF1α, PP2A, SAMDC, TIP41, TUBα, TUBβ and UBQ10, in two distinct tissues (leaves and roots) of A. palmatum under four different abiotic stress conditions (cold,… More >

  • Open Access

    REVIEW

    Role of Pathogen-Related Protein 10 (PR 10) under Abiotic and Biotic Stresses in Plants

    Rakesh Kumar Sinha1,*, Shiv Shankar Verma2, Anshu Rastogi3,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 167-182, 2020, DOI:10.32604/phyton.2020.09359 - 22 April 2020

    Abstract Members of the Pathogenesis Related (PR) 10 protein family have been identified in a variety of plant species and a wide range of functions ranging from defense to growth and development has been attributed to them. PR10 protein possesses ribonuclease (RNase) activity, interacts with phytohormones, involved in hormone-mediated signalling, afforded protection against various phytopathogenic fungi, bacteria, and viruses particularly in response to biotic and abiotic stresses. The resistance mechanism of PR10 protein may include activation of defense signalling pathways through possible interacting proteins involved in mediating responses to pathogens, degradation of RNA of the invading… More >

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