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• Arbuscular Mycorrhizal Fungal Diversity Associated with Olea europaea L. Growing in Yunnan Province, Southwestern China
• Yuebo Jing^*, Jihua Mao, Rongbo Li
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.021989
• （This article belongs to this Special Issue: Mycorrhizal Fungi and Sustainable Development of Agriculture)
• Abstract Olive (Olea europaea L.) is one of the most important and widely cultivated fruit trees, with high economic, ecological, cultural and scientific value. China began introducing and cultivating olive in the 1960s, and Yunnan Province is one of the main growing areas. Improving the cultivation and productivity of this tree crop species is an important challenge. Olive is a typical mycotrophic species and the potential of arbuscular mycorrhizal fungi (AMF) for this plant is well recognized; nevertheless, studies of olive AMF in China are still very limited. Roots and rhizosphere soils of olive were sampled from five representative growing sites… More
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• In vitro Evaluation of Seed Germination in Twelve Alfalfa Cultivars under Salt Stress
• Walid Soufan^*, Yaser Hassan Dewir, Nasser A. Al-Suhaibani
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.023115
• Abstract Alfalfa (Medicago sativa L.), when exposed to abiotic stress such as salinity, suffers significant losses in yield and productivity. The present study evaluated the salinity tolerance of 12 alfalfa cultivars in vitro using five concentrations of sodium chloride (NaCl), ranging from 0 to 250 mmol L⁻¹ . The results obtained in the current study revealed that the Saudi cultivars, Kasimi and Hassawi, and the German cultivar (Berlin) had the highest salinity tolerance in terms of germination percentage (GP), corrected germination rate index (CGRI), days to reach 50% germination (GT₅₀), and ability to form cotyledonary and true leaves. Under mmol L⁻¹… More
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• Observation on Flower Bud Differentiation of Crape Myrtle in Red Soil Environment
• Linxue Shang^1,2,3,#, Dandan Ma^4,#, Sidan Hong^1,2,3,#, Yu Zhao^1,2,3,#, Guozhe Zhang^1,2,3,#, Qingqing Ma^1,2,3, Qun Wang^1,2,3,*, Cuihua Gu^1,2,3,*
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.022485
• （This article belongs to this Special Issue: The Effect of Soil Quality Degradation on the Plant Growth, Quality and Food Safety in Subtropical Agroforestry Ecosystems)
• Abstract Flower bud differentiation is a key component of plant blooming biology and understanding how it works is vital for flowering regulation and plant genetic breeding, increasing the number and quality of flowering. Red soil is the most widely covered soil type in the world, and it is also the most suitable soil type for crape myrtle planting. The flower buds of crape myrtle (Lagerstroemia indica) planted in red soil were employed as experimental materials in this study, and the distinct periods of differentiation were identified using stereomicroscopy and paraffin sectioning. We optimized the steps of dehydration, transparency, embedding, sectioning and… More
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• Effects of Two Potential Allelochemicals on the Photosystem II of Nitzschia closterium and Monostroma nitidum
• Bowen Huang, Enyi Xie^*, Yu Ran, Xinyi Chen, Yongjian Huang, Jianjun Cui^*
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.022672
• （This article belongs to this Special Issue: Role of Biostimulants in the Alleviation of Biotic and Abiotic Stress)
• Abstract In aquaculture, high-density seaweed farming brings higher economic benefits but also increases outbreaks of diatom felt. The effective control of diatom felt in high-density seaweed farming has always been a research hotspot. This study selected two potential allelochemicals 2-hydroxycinnamic acid and quinic acid to explore their effects on a diatom Nitzschia closterium and an economic seaweed Monostroma nitidum. The results showed that 2-hydroxycinnamic acid had better inhibitory effects than quinic acid on the growth, pigment content and photosynthetic efficiency of N. closterium. Their half-maximal inhibitory concentrations at 120 h (IC_{50–120 h}) were 0.9000 and 1.278 mM, respectively. Additionally, these allelochemicals… More
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• The Endosperm-Specific Expression of YUCCA Genes Enhances Rice Grain Filling
• Huijun Jiang^1,#, Kaien Zhai^3,#, Xiaofan Ye^3,#, Tianwei Hu², Jieming Jiang⁴, Xiaoqiu Dong¹, Weihuai Pan¹, Jianwei Pan², Jianxin Shou^1,*
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.021474
• （This article belongs to this Special Issue: High-Yield Rice Physiology & Genetics)
• Abstract Grain filling is a crucial process that affects yield in rice (Oryza sativa L.). Auxin biosynthesis and signaling are closely related to rice yield; therefore, it is important to understand the effects of auxin biosynthesis on rice grain filling to improve crop yield. In this study, we used physiological and molecular strategies to identify the roles of auxin in rice grain filling. Exogenous application of auxin (IAA) or auxin analogues (2, 4-D) to young spikelets and flag leaves improved the seed-setting rate and yield per spike. Furthermore, real-time quantitative PCR assays confirmed that nine members of the OsYUCCA family of… More
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• GhSCL4 Acts as a Positive Regulator in Both Transgenic Arabidopsis and Cotton during Salt Stress
• Yanyan Zhao^1,*, Yanpeng Ding², Bailin Duan¹, Qingzhou Xie¹
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.022384
• （This article belongs to this Special Issue: Symbiotic Associations for Nutrients Management and Complexes Formation for Better Agricultural Crops Productivity under Biotic and Abiotic Stresses)
• Abstract GRAS transcription factors play important roles in plant abiotic stress response, but their characteristics and functions in cotton have not been fully investigated. A cotton SCL4/7 subgroup gene in the GRAS family, GhSCL4, was found to be induced by NaCl treatments. Nuclear localization and transactivation activity of GhSCL4 indicate its potential role in transcriptional regulation. Transgenic Arabidopsis thaliana over-expressing GhSCL4 showed enhanced resistance to salt and osmotic stress. What’s more, the transcript levels of salt stress-induced genes (AtNHX1 and AtSOS1) and oxidation-related genes (AtAPX3 and AtCSD2) were more highly induced in the GhSCL4 over-expression lines than in wild type after… More
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• Identification and Characterization of a Novel Yellow Leaf Mutant yl1 in Rice
• Xiaofang Zeng^1,#, Guangzheng Li^1,#, Nu’an Liu², Yan Li¹, Jianrong Li¹, Xiaozhen Huang¹, Degang Zhao^1,2,,*
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.021199
• （This article belongs to this Special Issue: High-Yield Rice Physiology & Genetics)
• Abstract Leaf-color mutants play an important role in the study of chlorophyll metabolism, chloroplast development, and photosynthesis system. In this study, the yellow leaf 1 (yl1) rice mutant was identified from the ethyl methane sulfonate-treated mutant progeny of Lailong, a glutinous japonica rice landrace cultivated in Guizhou Province, China. Results showed that yl1 exhibited yellow leaves with decreased chlorophyll content throughout the growth period. Chloroplast development in the yl1 mutant was disrupted, and the grana lamellae was loosely packed and disordered. RNA sequencing and real-time quantitative polymerase chain reaction (qRT-PCR) analysis revealed that the chlorophyll synthesis-related genes OsCHLH, OsCHLM, OsCHLG, PORB,… More
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• Role of Organic Amendments to Mitigate Cd Toxicity and Its Assimilation in Triticum aestivum L.
• Tauqeer Ahmad Yasir¹, Sobia Aslam¹, Muhammad Shahid Rizwan², Allah Wasaya^1,*, Muhammad Ateeq¹, Muhammad Naeem Khan³, Sikander Khan Tanveer⁴, Walid Soufan⁵, Basharat Ali⁶, Allah Ditta^7,8, Arpna Kumari⁹, Ayman EL Sabagh^10,*
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.022473
• （This article belongs to this Special Issue: The Effect of Soil Quality Degradation on the Plant Growth, Quality and Food Safety in Subtropical Agroforestry Ecosystems)
• Abstract In soil biota, higher and enduring concentration of heavy metals like cadmium (Cd) is hazardous and associated with great loss in growth, yield, and quality parameters of most of the crop plants. Recently, in-situ applications of eco-friendly stabilizing agents in the form of organic modifications have been utilized to mitigate the adverse effects of Cd-toxicity. This controlled experiment was laid down to appraise the imprints of various applied organic amendments namely poultry manure (PM), farmyard manure (FYM), and sugarcane press mud (PS) to immobilize Cd in polluted soil. Moreover, phytoavailability of Cd in wheat was also accessed under an alkaline… More
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• Identification of QTLs for Yield and Associated Traits in F₂ Population of Rice
• Rohini Bhat^1,*, Anil Kumar Singh², Muntazir Mushtaq³, Romesh Kumar Salgotra², Manmohan Sharma², Basharat Ahmad Bhat⁴, Umer Basu⁵, Ibrahim Al-Ashkar ⁶, Mohammad Anwar Hossain^7,*, Akihiro Ueda⁸, Ayman El Sabagh⁹
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.020100
• Abstract Identification of quantitative trait loci (QTLs) controlling yield and yield-related traits in rice was performed in the F₂ mapping population derived from parental rice genotypes DHMAS and K343. A total of 30 QTLs governing nine different traits were identified using the composite interval mapping (CIM) method. Four QTLs were mapped for number of tillers per plant on chromosomes 1 (2 QTLs), 2 and 3; three QTLs for panicle number per plant on chromosomes 1 (2 QTLs) and 3; four QTLs for plant height on chromosomes 2, 4, 5 and 6; one QTL for spikelet density on chromosome 5; four QTLs… More
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• G × E Analysis of Growth Traits of Betula platyphylla Clones at Three Separated Sites in Northeastern China
• Yuxi Li^1,2, Xinxin Zhang^1,2, Qinhui Zhang^1,2, Luping Jiang^1,2, Rui Han¹, Siqi Sun¹, Xiaoqing Hu¹, Xiaona Pei¹, Chunli Zhao^1,*, Xiyang Zhao^1,2,*
• Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2022.020518
• Abstract To select elite materials, the growth traits of 32 Betula platyphylla clones at three separated northern sites in Northeast China were investigated and analyzed. The results showed that there were significant differences among all variation sources in the different investigated traits (P < 0.01). Except for the carbon contents, all the coeffi- cients of phenotypic variation of the other investigated traits were higher than 10%. The repeatability of different traits ranged from 0.760 to 0.998. Correlation analysis showed that tree height were significantly correlated with diameter at breast height, but neither was significantly correlated with leaf traits nor element contents.… More
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