scholarly journals Triacontanol Promotes the Fruit Development and Retards Fruit Senescence in Strawberry: A Transcriptome Analysis

Plants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 488
Author(s):  
Qianqian Pang ◽  
Xueqin Chen ◽  
Jinhua Lv ◽  
Teng Li ◽  
Jinggui Fang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Fruit Development ◽  
Growth And Development ◽  
High Efficiency ◽  
Low Cost ◽  
Sugar Content ◽  
Regulation Mechanism ◽  
Cellular Processes ◽  
Go Enrichment ◽  
Related Enzyme

Triacontanol (TA) is a non-toxic, pollution-free, low-cost, high-efficiency, broad-spectrum plant growth regulator that plays an important role in plant growth and development, but its regulation mechanism of strawberry (Sweet charlie, Fragaria × ananassa Duch.) fruit development is still unclear. In this study, we showed that TA treatment (50 μM) could promote fruit development by up-regulating factors related to fruit ripening-related growth and development. TA increased fruit sugar content and anthocyanin accumulation, and many stress-related enzyme activities. In the meantime, Illumina RNA-Seq technology was used to evaluate the effect of TA treatment on strawberry fruit senescence. The results showed that 9338 differentially expressed genes (DEGs) were obtained, including 4520 up-regulated DEGs and 4818 down-regulated DEGs. We performed gene ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of these DEGs. The results showed that TA treatment caused changes in transcript levels related to cellular processes, hormones and secondary metabolism, such as DNA metabolic processes, flavonoid synthesis, and plant hormone signal transduction. Bioinformatics analysis showed that many transcription factors were related to fruit maturity. Taken together, this study will provide new insights into the mechanism of strawberry development and postharvest response to TA treatment.

scholarly journals VERSATILE ROLE OF AUXIN AND ITS CROSSTALK WITH OTHER PLANT HORMONES TO REGULATE PLANT GROWTH AND DEVELOPMENT

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hammad Ishtiaq ◽  
Savita Bhardwaj ◽  
Aaliya Ashraf ◽  
Dhriti Kapoor
Keyword(s):  
Cell Cycle ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Plant Hormones ◽  
Growth And Development ◽  
Naphthalene Acetic Acid ◽  
Plant Growth And Development ◽  
Indole Butyric Acid ◽  
Cellular Processes

Plant growth regulators are significant chemical compounds which are synthesized inside the plant cells and play vital role in plant growth and development. Such compounds are usually active at very low concentrations. These plant growth regulators act as a signalling molecule, which influences the growth of plants. Throughout the previous year’s remarkable investigation have been done for understanding the synthesis of auxin and its effect on various physiological progressions. Auxin is a plant hormone that is involved in various physiological activities, including basic cellular processes such as cell enlargement, regulation of the cell cycle and distinction progress. Plants and several other microorganisms together produce auxin in order to carry out their cell cycle. The chemically synthesized auxins like NAA (naphthalene acetic acid) and IBA (Indole- butyric acid), also take part in various cellular processes. Against various types of biotic and abiotic stress conditions, these plant hormones significantly contribute in promoting acclimatization and adaptation in combination with other phytohormones. The present review highlights some of the important features of auxin role in regulation of plant growth either alone or in crosstalk with other plant hormones.

scholarly journals Microfluidic-Based Single-Cell Study: Current Status and Future Perspective

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2347 ◽  
Author(s):  
Haiwa Wu ◽  
Jing Zhu ◽  
Yao Huang ◽  
Daming Wu ◽  
Jingyao Sun
Keyword(s):  
Single Cell ◽  
Soft Lithography ◽  
High Efficiency ◽  
Low Cost ◽  
Cell Manipulation ◽  
Current Status ◽  
Future Perspective ◽  
Cellular Processes ◽  
Cell Groups ◽  
Cell Study

Investigation of cell behavior under different environments and manual operations can give information in specific cellular processes. Among all cell-based analysis, single-cell study occupies a peculiar position, while it can avoid the interaction effect within cell groups and provide more precise information. Microfluidic devices have played an increasingly important role in the field of single-cell study owing to their advantages: high efficiency, easy operation, and low cost. In this review, the applications of polymer-based microfluidics on cell manipulation, cell treatment, and cell analysis at single-cell level are detailed summarized. Moreover, three mainly types of manufacturing methods, i.e., replication, photodefining, and soft lithography methods for polymer-based microfluidics are also discussed.

scholarly journals Evaluation of potential contribution of plant growth-promoting bacteria to land desertification

2020 ◽  
Vol 165 ◽  
pp. 02013
Author(s):  
Min He
Keyword(s):  
Plant Growth ◽  
High Efficiency ◽  
Low Cost ◽  
Potential Contribution ◽  
Plant Growth Promoting Bacteria ◽  
Degraded Soil ◽  
Plant Growth Promoting ◽  
Plant Restoration ◽  
Growth Promoting ◽  
Increase Crop Yield

The problem of soil degradation is becoming more and more serious, how to effectively repair desertified degraded soil has aroused widespread concern. As one of the emerging strategies, plant restoration has great advantages such as high efficiency and low cost, but this technology also has some defects, that is, it is difficult for plants to be established in the coercive environment of ecological destruction. Modified plant growth-promoting bacteria (PGPB) is usually used to increase crop yield. In addition to their proven uses in agriculture, they also have potential in solving environmental problems. This paper analyzes the limitations of solving the problem of environmental degradation based on phytoremediation, and enumerates and explains two methods for screening PGPB. By enumerating the application status of PGPB in promoting the growth of native plants to prevent soil erosion in degraded areas, the importance of plant growth-promoting bacteria to soil quality and microbial structure before plant remediation was discussed. The purpose of this paper is to provide thoughts and suggestions for the study of phytoremediation by combined plant growth-promoting bacteria and plants in desertified degraded soil environment.

scholarly journals Micropropagation of Musa balbasiana (BBB group)

2019 ◽  
Vol 2 (3) ◽  
pp. 23-29
Author(s):  
Phuong Thi Bach Vu ◽  
Nhi Thi Yen Trieu ◽  
Kien Cong Duong ◽  
Phuong Ngo Diem Quach
Keyword(s):  
Survival Rate ◽  
Plant Growth ◽  
Growth And Development ◽  
High Efficiency ◽  
Global Market ◽  
Ms Medium ◽  
Shoot Height ◽  
Study Results ◽  
Murashige And Skoog Medium ◽  
Disease Free

The banana domestic market as well as global market are growing. Musa balbasiana (BBB group) is now one of the preferred banana types; however, this banana group is facing up to risk of degeneration and disease. Therefore, the micropropagation of banana to provide genetic stability, disease-free seedlings, and enriching the types of bananas in the market is essential. In this study, we have completed the process of Musa balbasiana (BBB group) micropropagation. The study results showed that the samples were sterilized with NaOCl 3% solution in 12-15 minutes depending on the size and age of the samples, buds were regenerated on Murashige and Skoog medium (MS) added 0.5 mg/L 1-phenyl-3 (1,2,3 thiadiazol-5-yl) (TDZ). MS medium supplemented with 1 mg/L benzylaminopurine (BA) and 0.25 mg/L kinetin made high efficiency shoot initation (10.700 ± 0.135 buds/sample) and the shoot height at the day of 20 was 3.023 ± 0.018 cm. Musa balbasiana (BBB group) had been the most induced roots on MS medium without plant growth regulators with 4.533 ± 0.058 roots/shoot and the roots were 2.433 ± 0.067 cm in length. Complete seedlings (with roots, stems, and leave) were transferred to the nursery and planted on sand with the highest survival rate of 91.1 %. After two weeks, the survival plants were moved to grown on clean soil for the best growth and development.

scholarly journals Coordinated overexpression of OsSUT1, OsSWEET11 and OsSWEET14 in rice impairs carbohydrate metabolism that has implications in plant growth, yield and susceptibility to Xanthomonas oryzae pv oryzae (Xoo)

2021 ◽  
Author(s):  
Jitender Singh ◽  
Donald James ◽  
V Mohan Murali Achary ◽  
Manish Kumar Patel ◽  
Jitendra K. Thakur ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Sugar Content ◽  
Xanthomonas Oryzae ◽  
Transcriptional Analysis ◽  
Starch Accumulation ◽  
Growth Media ◽  
Sucrose Transport ◽  
Long Distance ◽  
Rice Plants

Enhancing carbohydrate export to sink tissues is considered as a feasible approach for improving photosynthetic efficiency and crop yield. In Oryza sativa Sucrose Transporter OsSUT1 located in companion cells and Sugars Will Eventually be Exported Transporters (SWEETs); OsSWEET11 and OsSWEET14 present in phloem parenchyma mesophyll cell plasma membranes are involved in long distance sucrose transport. OsSWEET11 and OsSWEET14 also play important role in host-pathogen interaction of rice plants and Xanthomonas oryzae pv oryzae (Xoo) that causes bacterial leaf blight. Three genes, OsSUT1, OsSWEET11, and OsSWEET14 were overexpressed under the control of their native promoters in rice to modulate long distance sugar transport and disease resistance. The transgenics displayed several phenotypic aberrations such as reduced plant height and seed weight due to altered sucrose transport and metabolism. Lower sucrose transport rate in transgenics than the WT resulted in reduced sucrose, fructose and glucose and increased starch accumulation in their leaves at the end of dark period. Transcriptional analysis revealed a reduction in the expression of genes involved in sucrose synthesis pathway in transgenics. Normal growth and development of transgenic seedlings were restored in growth media supplemented with 3% sucrose demonstrating in planta sucrose limitation. Remarkably, transgenic lines had diminished susceptibility to Xoo than the WTs due to low sugar content in the leaves demonstrating that rice plants maintain an optimum level of SWEETs for proper plant growth and development, and upregulation of these SWEETs in rice mimicks Xoo attack impelling plants to reduce sugar content in the apoplasm to inhibit pathogen growth.

scholarly journals Genome-wide identification and transcript analysis of TCP transcription factors in grapevine

2019 ◽  
Author(s):  
xiangpeng leng ◽  
Hongru Wei ◽  
Xiaozhao Xu ◽  
Sandip A. Ghuge ◽  
Dongjie Jia ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Fruit Development ◽  
Growth And Development ◽  
Expression Patterns ◽  
Class Ii ◽  
Plant Growth And Development ◽  
Specific Expression ◽  
Genome Wide ◽  
Tcp Family

Abstract Background The plant-specific TCP transcription factors play different functions in multiple processes of plant growth and development. TCP family genes have been identified in several plant species, but no comprehensive analysis of the TCP family in grapevine has been undertaken to date, especially their roles in fruit development. Results A total of 18 non-redundant grapevine TCP (VvTCP) genes distributing on 11 chromosomes were identified. Phylogenetic and structural analysis showed that VvTCP genes were divided into two main classes - class I and class II. The Class II genes were further classified into two subclasses, the CIN subclass and the CYC/TB1 subclass. Segmental duplication was a predominant duplication event which caused the expansion of VvTCP genes. The cis-acting elements analysis and tissue-specific expression patterns of VvTCP genes demonstrated that these VvTCP genes might play important roles in plant growth and development. Expression patterns of VvTCP genes during fruit development and ripening were analyzed by RNA-Seq and qRT-PCR. Among them, eleven VvTCP genes were down-regulated during different fruit developmental stages, while only one VvTCP genes were up-regulated, suggesting that most VvTCP genes were probably related to early development in grapevine fruit. Futhermore, the expression of most VvTCP genes can be inhibited by drought and waterlogging stresses. Conclusions Our study establishes the first genome-wide analysis of the grapevine TCP gene family and provides valuable information for understanding the classification and functions of the TCP genes in grapevine.

scholarly journals Genome-wide identification and transcript analysis of TCP transcription factors in grapevine

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Xiangpeng Leng ◽  
Hongru Wei ◽  
Xiaozhao Xu ◽  
Sandip A. Ghuge ◽  
Dongjie Jia ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Fruit Development ◽  
Growth And Development ◽  
Expression Patterns ◽  
Class Ii ◽  
Plant Growth And Development ◽  
Specific Expression ◽  
Genome Wide ◽  
Tcp Family

Abstract Background The plant-specific TCP transcription factors play different functions in multiple processes of plant growth and development. TCP family genes have been identified in several plant species, but no comprehensive analysis of the TCP family in grapevine has been undertaken to date, especially their roles in fruit development. Results A total of 18 non-redundant grapevine TCP (VvTCP) genes distributing on 11 chromosomes were identified. Phylogenetic and structural analysis showed that VvTCP genes were divided into two main classes - class I and class II. The Class II genes were further classified into two subclasses, the CIN subclass and the CYC/TB1 subclass. Segmental duplication was a predominant duplication event which caused the expansion of VvTCP genes. The cis-acting elements analysis and tissue-specific expression patterns of VvTCP genes demonstrated that these VvTCP genes might play important roles in plant growth and development. Expression patterns of VvTCP genes during fruit development and ripening were analyzed by RNA-Seq and qRT-PCR. Among them, 11 VvTCP genes were down-regulated during different fruit developmental stages, while only one VvTCP genes were up-regulated, suggesting that most VvTCP genes were probably related to early development in grapevine fruit. Futhermore, the expression of most VvTCP genes can be inhibited by drought and waterlogging stresses. Conclusions Our study establishes the first genome-wide analysis of the grapevine TCP gene family and provides valuable information for understanding the classification and functions of the TCP genes in grapevine.

scholarly journals Genome-wide identification and transcript analysis of TCP transcription factors in grapevine

2019 ◽  
Author(s):  
Xiangpeng Leng ◽  
Hongru Wei ◽  
Xiaozhao Xu ◽  
Sandip A. Ghuge ◽  
Dongjie Jia ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Fruit Development ◽  
Growth And Development ◽  
Expression Patterns ◽  
Class Ii ◽  
Plant Growth And Development ◽  
Specific Expression ◽  
Genome Wide ◽  
Tcp Family

Abstract Background The plant-specific TCP transcription factors play different functions in multiple processes of plant growth and development. TCP family genes have been identified in several plant species, but no comprehensive analysis of the TCP family in grapevine has been undertaken to date, especially their roles in fruit development. Results A total of 18 non-redundant grapevine TCP (VvTCP) genes distributing on 11 chromosomes were identified. Phylogenetic and structural analysis showed that VvTCP genes were divided into two main classes - class I and class II. The Class II genes were further classified into two subclasses, the CIN subclass and the CYC/TB1 subclass. Segmental duplication was a predominant duplication event which caused the expansion of VvTCP genes. The cis-acting elements analysis and tissue-specific expression patterns of VvTCP genes demonstrated that these VvTCP genes might play important roles in plant growth and development. Expression patterns of VvTCP genes during fruit development and ripening were analyzed by RNA-Seq and qRT-PCR. Among them, eleven VvTCP genes were down-regulated during different fruit developmental stages, while only one VvTCP genes were up-regulated, suggesting that most VvTCP genes were probably related to early development in grapevine fruit. Futhermore, the expression of most VvTCP genes can be inhibited by drought and waterlogging stresses. Conclusions Our study establishes the first genome-wide analysis of the grapevine TCP gene family and provides valuable information for understanding the classification and functions of the TCP genes in grapevine.

scholarly journals Genome-wide identification and transcript analysis of TCP transcription factors in grapevine

2019 ◽  
Author(s):  
xiangpeng leng ◽  
Hongru Wei ◽  
Xiaozhao Xu ◽  
Sandip A. Ghuge ◽  
Dongjie Jia ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Fruit Development ◽  
Growth And Development ◽  
Expression Patterns ◽  
Class Ii ◽  
Plant Growth And Development ◽  
Specific Expression ◽  
Genome Wide ◽  
Tcp Family

Abstract Background The plant-specific TCP transcription factors play different functions in multiple processes of plant growth and development. TCP family genes have been identified in several plant species, but no comprehensive analysis of the TCP family in grapevine has been undertaken to date, especially their roles in fruit development. Results A total of 18 non-redundant grapevine TCP (VvTCP) genes distributing on 11 chromosomes were identified. Phylogenetic and structural analysis showed that VvTCP genes were divided into two main classes - class I and class II. The Class II genes were further classified into two subclasses, the CIN subclass and the CYC/TB1 subclass. Segmental duplication was a predominant duplication event which caused the expansion of VvTCP genes. The cis-acting elements analysis and tissue-specific expression patterns of VvTCP genes demonstrated that these VvTCP genes might play important roles in plant growth and development. Expression patterns of VvTCP genes during fruit development and ripening were analyzed by RNA-Seq and qRT-PCR. Among them, eleven VvTCP genes were down-regulated during different fruit developmental stages, while only one VvTCP genes were up-regulated, suggesting that most VvTCP genes were probably related to early development in grapevine fruit. Futhermore, the expression of most VvTCP genes can be inhibited by drought and waterlogging stresses. Conclusions Our study establishes the first genome-wide analysis of the grapevine TCP gene family and provides valuable information for understanding the classification and functions of the TCP genes in grapevine.

Influence of MBE Growth Conditions on Dislocation Densities of GaAs/Ge Epilayers Grown on Silicon Substrates

1985 ◽  
Vol 43 ◽  
pp. 364-365
Author(s):  
K.M. Hones ◽  
P. Sheldon ◽  
B.G. Yacobi ◽  
A. Mason
Keyword(s):  
High Efficiency ◽  
Lattice Mismatch ◽  
Low Cost ◽  
Growth Conditions ◽  
Nonradiative Recombination ◽  
Device Structure ◽  
Si Substrates ◽  
Transmission Electron ◽  
Dislocation Densities ◽  
Dislocation Type

There is increasing interest in growing epitaxial GaAs on Si substrates. Such a device structure would allow low-cost substrates to be used for high-efficiency cascade- junction solar cells. However, high-defect densities may result from the large lattice mismatch (∼4%) between the GaAs epilayer and the silicon substrate. These defects can act as nonradiative recombination centers that can degrade the optical and electrical properties of the epitaxially grown GaAs. For this reason, it is important to optimize epilayer growth conditions in order to minimize resulting dislocation densities. The purpose of this paper is to provide an indication of the quality of the epitaxially grown GaAs layers by using transmission electron microscopy (TEM) to examine dislocation type and density as a function of various growth conditions. In this study an intermediate Ge layer was used to avoid nucleation difficulties observed for GaAs growth directly on Si substrates. GaAs/Ge epilayers were grown by molecular beam epitaxy (MBE) on Si substrates in a manner similar to that described previously.

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