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  • Open Access

    ARTICLE

    Vegetative Compatibility and Virulence Diversity of Verticillium dahliae from Okra (Abelmoschus esculentus) Plantations in Turkey and Evaluation of Okra Landraces for Resistance to V. dahliae

    Fatih M. Tok1, Sibel Dervis2,*, Halit Yetisir3

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08801

    Abstract Forty-four V. dahliae isolates were collected from symptomatic vascular tissues of okra plants each from a different field in eight provinces located in the eastern Mediterranean and western Anatolia regions of Turkey during 2006- 2009. Nitrate-nonutilizing (nit) mutants of V. dahliae from okra were used to determine heterokaryosis and genetic relatedness among isolates. All isolates from okra plants were grouped into two vegetative compatibility groups (VCGs) (1 and 2) and three subgroups as 1A (13.6%, 6/44), 2A (20.5%, 9/44) and 2B (65.9%, 29/44) according to international criteria. Pathogenicity tests were performed on a susceptible local okra (A. esculentus) landrace in… More >

  • Open Access

    REVIEW

    Combined Role of ACC Deaminase Producing Bacteria and Biochar on Cereals Productivity under Drought

    Subhan Danish1,2, Muhammad Zafar-ul-Hye1,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08523

    Abstract Most of the cereal crops are widely cultivated to fulfil the humans food requirements. Under changing climate scenario, the intensity of drought stress is continuously increasing that is adversely affecting the growth and yield of cereal crops. Although the cereals can tolerate moderate drought to some extent, but mostly they are susceptible to severe drought stress. Higher biosynthesis of ethylene under drought stress has been reported. Many scientists observed that inoculation of 1-aminocyclopropane-1-carboxylate (ACC) deaminase producing plant growth promoting rhizobacteria (PGPR) is an efficacious tool to overcome this problem. These PGPR secrete ACC deaminase which cleavage the ACC into the… More >

  • Open Access

    ARTICLE

    Dithiothreitol and PEG Induced Combined Stress May Affect the Expressions of ABA Aldehyde Oxidase, Sucrose Synthase and Proline Metabolic Genes in Maize Seedlings

    Cansu Altuntaş1, Rabiye Terzi1,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08919

    Abstract The endoplasmic reticulum (ER) is an organelle in the cell where proteins are created and folded. Folding is a very elaborate process that is often interrupted by various biotic and abiotic stresses, leading to the formation of unfolded and misfolded proteins called ER stress. Dithiothreitol (DTT)-induced unfolded protein response (UPR) in endoplasmic reticulum (ER) has been recently reported in plants. Also, previous studies demonstrated that treatment with polyethylene glycol (PEG6000) could stimulate water deficit in crops. However, further researches should be conducted to elucidate the molecular mechanism of ER stress response and the relationship between water deficiency and ER. In… More >

  • Open Access

    ARTICLE

    Aspergillus tubingensis Causes Leaf Spot of Cotton (Gossypium hirsutum L.) in Pakistan

    Maria Khizar1, Urooj Haroon1, Musrat Ali1, Samiah Arif2, Iftikhar Hussain Shah2 , Hassan Javed Chaudhary1, Muhammad Farooq Hussain Munis1,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08010

    Abstract Cotton (Gossypium hirsutum L.) is a key fiber crop of great commercial importance. Numerous phytopathogens decimate crop production by causing various diseases. During July-August 2018, leaf spot symptoms were recurrently observed on cotton leaves in Rahim Yar Khan, Pakistan and adjacent areas. Infected leaf samples were collected and plated on potato dextrose agar (PDA) media. Causal agent of cotton leaf spot was isolated, characterized and identified as Aspergillus tubingensis based on morphological and microscopic observations. Conclusive identification of pathogen was done on the comparative molecular analysis of CaM and β-tubulin gene sequences. BLAST analysis of both sequenced genes showed 99%… More >

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