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  • Open Access

    ARTICLE

    Germination and Photosynthetic Responses to Salinity and Alkalinity in Avicenna marina Propagules

    Abdallah Atia1,2,*, Ahmed Abdallah Hussain3,4, Barhoumi Zouhaier3,5

    Phyton-International Journal of Experimental Botany, Vol.91, No.5, pp. 1015-1026, 2022, DOI:10.32604/phyton.2022.017778

    Abstract Avicenna marina (Forssk.) Vierh is a halophytic mangrove. The reproductive unit is green and has photosynthetic propagules. Mangroves are naturally exposed to fluctuations in some abiotic factors at the soil surface, including salinity and alkalinity. The objective of this study was to determine the effects of two salts including NaCl and NaHCO3 on germination processes and discuss the relationships between cotyledon photosynthesis and embryo axis growth in A. marina propagules. These propagules came from Al Birk, located on the shoreline of the Saudi Red Sea. The results showed that the studied salts did not affect neither the final More >

  • Open Access

    ARTICLE

    Mycorrhiza improves plant growth and photosynthetic characteristics of tea plants in response to drought stress

    FENGJUN DAI1, ZIYI RONG1, QIANGSHENG WU1, ELSAYED FATHI ABD_ALLAH3, CHUNYAN LIU1,2,*, SHENGRUI LIU2,*

    BIOCELL, Vol.46, No.5, pp. 1339-1346, 2022, DOI:10.32604/biocell.2022.018909

    Abstract Tea plants are sensitive to soil moisture deficit, with the level of soil water being a critical factor affecting their growth and quality. Arbuscular mycorrhizal fungi (AMF) can improve water and nutrient absorption, but it is not clear whether AMF can improve the photosynthetic characteristics of tea plants. A potted study was conducted to determine the effects of Claroideoglomus etunicatum on plant growth, leaf water status, pigment content, gas exchange, and chlorophyll fluorescence parameters in Camellia sinensis cv. Fuding Dabaicha under well-watered (WW) and drought stress (DS) conditions. Root mycorrhizal colonization and soil hyphal length were significantly… More >

  • Open Access

    REVIEW

    Salinity Stress in Wheat: Effects, Mechanisms and Management Strategies

    Mahmoud F. Seleiman1,2,#,*, Muhammad Talha Aslam3,#, Bushra Ahmed Alhammad4, Muhammad Umair Hassan5, Rizwan Maqbool3, Muhammad Umer Chattha3, Imran Khan3, Harun Ireri Gitari6, Omer S. Uslu7, Rana Roy8, Martin Leonardo Battaglia9

    Phyton-International Journal of Experimental Botany, Vol.91, No.4, pp. 667-694, 2022, DOI:10.32604/phyton.2022.017365

    Abstract Salinity stress is a major threat to global food production and its intensity is continuously increasing because of anthropogenic activities. Wheat is a staple food and a source of carbohydrates and calories for the majority of people across the globe. However, wheat productivity is adversely affected by salt stress, which is associated with a reduction in germination, growth, altered reproductive behavior and enzymatic activity, disrupted photosynthesis, hormonal imbalance, oxidative stress, and yield reductions. Thus, a better understanding of wheat (plant) behavior to salinity stress has essential implications to devise counter and alleviation measures to cope… More >

  • Open Access

    ARTICLE

    Foliar Application of Cytokinin Modulates Gas Exchange Features, Water Relation and Biochemical Responses to Improve Growth Performance of Maize under Drought Stress

    M. Rafiqul Islam1,*, M. Shahinur Islam1, Nurunnaher Akter1, Mohammed Mohi-Ud-Din2, Mohammad Golam Mostofa3,4,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.3, pp. 633-649, 2022, DOI:10.32604/phyton.2022.018074

    Abstract Improvement of plant performance under drought stress is crucial to sustaining agricultural productivity. The current study investigated the ameliorative effects of foliar-applied kinetin, an adenine-type cytokinin (CK), on growth and gas exchange parameters, water relations and biochemical attributes of maize plants under drought stress. Eighteen-day-old maize plants were subjected to drought by maintaining soil moisture content at 25% field capacity for 8 days followed by foliar application of kinetin at 0, 75, 150 and 225 mg L−1 (CK0, CK75, CK150 and CK225, respectively) to the plants for two-times at the 9-day interval. Results revealed that drought stress… More >

  • Open Access

    ARTICLE

    Effects of High-Temperature Stress on Photosynthetic Characteristics and Antioxidant Enzyme System of Paeonia ostii

    Xiaoxiao Wang1, Ziwen Fang1, Daqiu Zhao1, Jun Tao1,2,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.3, pp. 599-615, 2022, DOI:10.32604/phyton.2022.017881

    Abstract

    Paeonia ostii is an economically important oil crop, which has been widely cultivated in the middle and lower reaches of the Yangtze River in China in recent years. Although P. ostii is highly adaptable to the environment, the prolonged high summer temperature in this region severely inhibits its growth, which adversely affects seed yield and quality. In this study, P. ostii plants were subjected to 20°C/15°C (day/night) and 40°C/35°C (day/night) temperatures for 15 days. The changes in physiological and biochemical indicators of P. ostii under high-temperature stress were initially investigated. The results showed that with the deepening of leaf

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  • Open Access

    ARTICLE

    Effect of strawberry vein banding virus and strawberry mottle virus co-infection on the growth and development of strawberry

    LINGJIAO FAN1, DAN SONG1, YINGWEI KHOO2, MENGMENG WU1, TENGFEI XU1, XIAOLI ZHAO1, HONGQING WANG1

    BIOCELL, Vol.46, No.1, pp. 263-273, 2022, DOI:10.32604/biocell.2022.016306

    Abstract

    Strawberry mottle virus (SMoV) and strawberry vein banding virus (SVBV) cause diseases on strawberry plants, but the effect of coinfection of SMoV and SVBV on the growth, development, and defense system of strawberry (Fragaria × ananassa Duchesne) remains unknown. We investigated the effect of SMoV and SVBV co-infection on strawberry cultivar ‘Benihope’. The results showed that stem diameter, leaf size, leaf number, relative chlorophyll content, total chlorophyll content, photosynthetic parameters, and stomatal aperture of SMoV and SVBV co-infected strawberry (VIS) plants were in a weaker level than uninfected control plants, indicating that viruses inhibited the growth and

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  • Open Access

    ARTICLE

    Quantitative Proteomics Analysis Identifies the Potential Mechanism Underlying Yellow-Green Leave Mutant in Wheat

    Wei Zheng, Zheng Shi, Mei Long, Yuncheng Liao*

    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1147-1159, 2021, DOI:10.32604/phyton.2021.015916

    Abstract Enhancing photosynthesis efficiency is considered as one of the most crucial targets during wheat breeding. However, the molecular basis underlying high photosynthesis efficiency is not well understood up to now. In this study, we investigated the protein expression profile of wheat Jimai5265yg mutant, which is a yellow-green mutant with chlorophylls b deficiency but high photosynthesis efficiency. Though TMT-labeling quantitative proteomics analysis, a total of 72 differential expressed proteins (DEPs) were obtained between the mutant and wild type (WT). GO analysis found that they significantly enriched in thylakoid membrane, pigment binding, magnesium chelatase activity and response More >

  • Open Access

    ARTICLE

    Effects of Different Vermicompost Rates on Growth, 2-Acetyl-1-Pyrroline, Photosynthesis and Antioxidant Responses of Fragrant Rice (Oryza sativa L.) Seedling

    Shaoyi Ruan1,2,3,#, Haowen Luo1,2,3,#, Xiaoyan Zeng1,2,3,#, Runhao Wen1,2,3, Feida Wu1,2,3, Xiangru Tang1,2.*

    Phyton-International Journal of Experimental Botany, Vol.90, No.4, pp. 1273-1283, 2021, DOI:10.32604/phyton.2021.015610

    Abstract Vermicompost is an organic fertilizer contains multiple nutrient elements. However, the application of vermicompost in fragrant rice production is rarely reported. In order to study the effects of vermicompost application on fragrant rice (Oryza sativa L.) seedling performances, present study was conducted with two fragrant rice cultivars and four vermicompost rate treatments (0 (CK), 2.5 (Wo1), 5.0 (Wo2) and 10.0 (Wo3) g kg−1 ). The results showed that vermicompost treatments significantly increased dry weight of fragrant rice seedling by 8.31–32.56% compared with CK. 21.10–59.13% higher net photosynthetic rates and 10.66–59.16% higher chlorophyll contents (chlorophyll a, chlorophyll b More >

  • Open Access

    ARTICLE

    Foliar Application of Phosphorus Enhances Photosynthesis and Biochemical Characteristics of Maize under Drought Stress

    Zahoor Ahmad1,2,*, Ejaz Ahmad Waraich3, Muhammad Zia ur Rehman4, Muhammad Ashar Ayub4, Muhammad Usman4, Hesham Alharby5, Atif Bamagoos5, Celaleddin Barutçular1, Muhammad Ali Raza6, Fatih Çiğ7, Ayman El Sabagh7,8,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 503-514, 2021, DOI:10.32604/phyton.2021.013588

    Abstract Water is essential for the growth period of crops; however, water unavailability badly affects the growth and physiological attributes of crops, which considerably reduced the yield and yield components in crops. Therefore, a pot experiment was conducted to investigate the effect of foliar phosphorus (P) on morphological, gas exchange, biochemical traits, and phosphorus use efficiency (PUE) of maize (Zea mays L.) hybrids grown under normal as well as water deficit situations at the Department of Agronomy, University of Agriculture Faisalabad, Pakistan in 2014. Two different treatments (control and P @ 8 kg ha−1 ) and four hybrids… More >

  • Open Access

    ARTICLE

    Effects of Different Salt Stress on Physiological Growth and Yield of Drip Irrigation Cotton (Gossypium hirsutum L.)

    Jiangchun Chen1, Zhenhua Wang1,2,*, Jinzhu Zhang1, Weibin Cao1

    Intelligent Automation & Soft Computing, Vol.26, No.5, pp. 949-959, 2020, DOI:10.32604/iasc.2020.010127

    Abstract This study adopted the method of barrel planting to artificially set the salt content of six different soils (CK:1.5 g kg-1 , T1:3.0 g kg-1 , T2:4.0 g kg-1 , T3:5.3 g kg-1 , T4:6.2 g kg-1 , T5:7.3 g kg-1 ) to study the effects of different degrees of mild salt stress on photosynthetic physiology, growth index and yield of cotton under drip irrigation. The results showed that with the increasing salt stress and the prolongation of stress time, the photosynthetic physiological indexes of cotton showed a downward trend (P < 0.01), and the plant height and leaf… More >

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