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Myo-inositol accelerates the metamorphosis from megalopa to crablet of Scylla paramamosain by modulating cuticle decomposition and reconstruction

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Aquaculture and Fisheries 2023年第6期8卷 695-705页

作者： Wenxiao Cui hafiz sohaib ahmed saqib Weifeng Gao Ruibo Wang Yang He Yang Yu Zhen Lin Qingyu Zhang Yin Zhang Shengkang Li Huaiping Zheng Yueling Zhang Mhd Ikhwanuddin Hongyu Ma Guangdong Provincial Key Laboratory of Marine Biotechnology Shantou UniversityShantou515063China STU-UMT Joint Shellfish Research Laboratory Shantou UniversityShantou515063China Rongtong Agricultural Development(Guangzhou)Co. LtdGuangzhou510030China Institute of Tropical Aquaculture and Fisheries Universiti Malaysia TerengganuKuala Nerus21030Malaysia

The mud crab Scylla paramamosain is a key species in China due to its high nutritional value and great economic worth and has grown in popularity.Myo-inositol can modulate versatile physiological functions in aquatic animals.In the present study,S.paramamosain megalopa were given graded concentrations of myo-inositol(0,1,2,4,and 8 ppm)by water immersion to explore how their metamorphosis would be affected.The results showed that supplementing with myo-inositol remarkably increased transformation and survival rate from megalopa to crablet by at least 1.16 and 1.26 times,respectively.To decipher the molecular mechanism of how myo-inositol increases metamorphosis and survival rate,we further performed transcriptome-based gene expression profiling of both megalopa and crablet treated with myo-inositol.The integrative transcriptome analyses predicted that the differentially expressed genes(DEGs)were significantly enriched in chitinase activity,structural constituent of cuticle,and chitin binding,which are associated with the decomposition and reconstruction of cuticle.qPCR results confirmed that myo-inositol mediated gene expression levels of the above cuticle-related pathways.Considering the importance of the cuticle in exoskeleton formation and molting,it can be concluded that myo-inositol-induced changes in the cuticle decomposition and reconstruction might have accelerated the transformation from megalopa to crablet of S.paramamosain.Besides,numerous DEGs were significantly enriched in protein digestion and absorption,amino sugar and nucleotide sugar metabolism.It implies that myo-inositol may improve survival by regulating energy or nutrient absorption.Additionally,the accelerated metamorphosis by myo-inositol may improve survival from megalopa to crablet of S.paramamosain.Overall,this study will provide the first insights into the underlying molecular mechanisms by which myo-inositol increases metamorphosis and survival.

关键词： Myo-inositol Scylla paramamosain Cuticle decomposition and reconstruction Chitin Metamorphosis Survival

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Silicon Mediated Arsenic Reduction in Rice by Limiting Its Uptake

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Agricultural Sciences 2016年第1期7卷 1-10页

作者： Muhammad Mohsin Raza Sami Ullah Zulfiqar Ahmad sohaib saqib Sarfraz Ahmad hafiz Muhammad Bilal Farman Wali Arid Zone Research Institute (PARC) Bahawalpur Pakistan Department of Agronomy University of Agriculture Faisalabad Pakistan Institute of Soil and Environmental Sciences University of Agriculture Faisalabad Pakistan

This study was planned to examine the effects of exogenous silicon supply on growth parameters and arsenic accumulation level in rice. The experiment was conducted in the wire house of Saline Agriculture Research Centre, Institute of Soil and Environmental Science, University of Agriculture Faisalabad. The study was comprised of treatments viz: control;(100 μM Arsenic);(200 μM Arsenic);(5 mM Silicon);(5 mM Silicon + 100 μM Arsenic) and (5 mM Silicon + 200 μM Arsenic). Results revealed that maximum shoot fresh weight, shoot dry weight, root fresh weight and root dry weight were observed in (5 mM Si) solution. In the same way, maximum number of tillers was also recorded in (5 mM Si) solution;while silicon application failed to alleviate arsenic concentration of rice genotype.

关键词： Silicon Arsenic Rice Growth As Concentration in Plant

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