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Organic Amendments Improve Plant Morpho-Physiology and Antioxidant Metabolism in Mitigating Drought Stress in Bread Wheat(Triticum aestivum L.)

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Phyton-International Journal of Experimental Botany 2022年第9期91卷 1959-1972页

作者： taufika islam.anee Md.Nur Nabi islam Mohamed M.Hassan Abdul Awal Chowdhury Masud Md.Mahabub Alam Mirza Hasanuzzaman Department of Agronomy Faculty of AgricultureSher-e-Bangla Agricultural UniversityDhaka1207Bangladesh Department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia

Due to the unpredictable climate change,drought stress is being considered as one of the major threats to crop ***(Triticum aestivum *** Gom-26)being a dry season crop frequently faces scarcity of water and results in a lower ***,this experiment aims to explore the role of different organic amendments(OAs)in mitigating drought stress-induced *** pot experiment consisted of different organic amendments ***,vermicompost and poultry manure@0.09 kg m^(−2)soil,biochar@2.5%w/w soil and chitosan@1%w/w soil which was imposed on the plants grown under both well-watered and drought *** showed that drought stress reduced plant height(15%),SPAD value(16%),relative water content(13%),number of spikelet spike^(−1)(17%),number of grains spike^(−1)(12%),and 100-grain weight(18%).Organic amendments act as a protectant and reduce drought stress-induced damages by enhancing the morpho-physiological and yield *** enhanced SPAD value by 18%,number of spikelets spike^(−1)by 20%,number of grains spike^(−1)by 17%,whereas poultry manure increased plant height by 16%under drought condition compared to control *** other OAs applied,vermicompost was proved to be capable of reducing the higher lipid peroxidation and proline content raised by drought *** stress-induced increment of catalase,ascorbate peroxidase and glutathione reductase activities were also efficiently modulated by the organic amendment *** present study concluded that OAs play significant roles in alleviating drought stressinduced damages by improving the morpho-physiological attributes and among the different types of OAs used vermicompost performed better which in addition ceased the production of reactive oxygen species.

关键词： Antioxidant defense biochar cereal crop chitosan compost poultry manure reactive oxygen species vermicompost

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Effect of Curcuma longa *** on the AP1 expression in rat cochlear fibroblasts under noise conditions

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Journal of Chinese Pharmaceutical Sciences 2016年第9期25卷 690-694页

作者： Tengku Siti Hajar Haryuna Ramsi Lutan Faathir Agung Ainu taufika Ratna Anggraeni Tengku Siti Harilza Zubaidah Department of Otorhinolaryngology Faculty of MedicineUniversity of North SumateraMedan 20155Indonesia Department of Otorhinolaryngology Faculty of MedicinePadjadjaran UniversityBandung 45363Indonesia Department of Ophthalmology Faculty of MedicineUniversity of North SumateraMedan 20155Indonesia

Noise-induced cellular stress can cause damage to fibroblasts within the cochlear supporting tissues and lateral wall. In the present study, we aimed to evaluate the role of curcumin as the safe and effective therapeutic agent in the prevention and treatment of this condition according to the expression of activator protein-1(AP1). A total of 24 Rattus norvegicus were randomly divided into four groups(n = 6). Group 1: control; group 2: noise(+); group 3: noise(+), 50 mg/day curcumin(+); group 4: noise(+), 100 mg/day curcumin(+). All groups(except for group 1) were subjected to a sound pressure level(SPL) of 100 d B for 2 h/day during 2 weeks. Curcumin used in this study was derived from Curcuma longa L.(Turmeric), and it was orally administered for 2 weeks. All samples were immunohistochemistrically examined for the expression of AP1 in cochlear fibroblasts. The results showed that there were significant differences for the AP1 expression(P<0.05) among all groups, except for between groups 1 and 3, or between groups 1 and 4. Our data proved that curcumin was potentially effective in the prevention and treatment of damage of fibroblasts within the cochlear supporting tissues and lateral wall due to the decreased AP1 expression following noise exposure.

关键词： Noise Curcumin AP1 Fibroblast Cochlea

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