ion transportation
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Small ◽  
2021 ◽  
pp. 2007442
Author(s):  
Dongbin Xiong ◽  
Shaozhuan Huang ◽  
Daliang Fang ◽  
Dong Yan ◽  
Guojing Li ◽  
...  

2021 ◽  
Author(s):  
Junliang Yin ◽  
Yike Liu ◽  
Lin Lu ◽  
Jian Zhang ◽  
Shaoyu Chen ◽  
...  

Abstract As a newly characterized class of noncoding RNAs, circular RNAs (circRNAs) have been identified in many plant species, and play important roles in plant stress responses. However, little is known about how salt stress mediates the expression of circRNAs in rice. In this study, we identified circRNAs from root tissues of salt-susceptible recipient cultivar 93-11 and salt-tolerant introgression line 9L136. A total of 190 circRNAs were identified. Among them, 93 circRNAs were differentially expressed under salt stress in 93-11 (36 up- and 57 down-regulated) and 95 in 9L136 (46 up- and 49 down-regulated). Salt stress significantly decreased the average expression level of circRNAs in 93-11, but circRNA expression levels were slightly increased in 9L136, suggesting that circRNAs had different response patterns in these two cultivars. Function annotation and enrichment analysis indicated that, through cis-regulation and circRNA-miRNA-mRNA network regulation, those induced circRNAs were commonly involved in transcription, signal transduction, ion transportation, and secondary metabolism. Compared to 93-11, salt-induced circRNAs in line 9L136 targeted more stress response genes participating in transcription regulation, ion transportation, and signal transduction, which may contribute to the salt tolerance of 9L136. Summarily, this study revealed the common response of rice circRNAs to salt stress, and the possible circRNA-related salt tolerance mechanisms of 9L136.


2021 ◽  
Vol 545 ◽  
pp. 148933
Author(s):  
Chang Ma ◽  
Qingchao Fan ◽  
Mahmut Dirican ◽  
Nakarin Subjalearndee ◽  
Hui Cheng ◽  
...  

Small ◽  
2021 ◽  
pp. 2100141
Author(s):  
Liping Zhang ◽  
Shan Zhou ◽  
Lei Xie ◽  
Liping Wen ◽  
Jinyao Tang ◽  
...  

2021 ◽  
Author(s):  
Xiaoshan Wang ◽  
Longyang Liu ◽  
Bingsheng Wang ◽  
Qiyue Dingxuan ◽  
Guisheng Zhou
Keyword(s):  

2021 ◽  
Author(s):  
Anas F Mahdee ◽  
Ahmed H Ali ◽  
James I Gillespie

Abstract The morphological and possible functional interactions between the connective tissue and epithelial elements of enamel organ were examined during the maturation phase, using immunohistochemical techniques. Decalcified mandibular sections (10µm) including incisors from Wistar rats ages 10–12 weeks were used. Sections were incubated with one or two primary antibodies targeting cell cytoskeleton (vimentin, α-actin, α-tubulin), dendritic marker (OX6), gap junctions (cx-43), enzymes (nitric-oxide synthase (nos1) and cyclooxygenase (cox1)), and ion transporters (Na+/H+ exchanger (NHE1) and Na+/Ca2+ exchanger (NCX)) for 24h, before incubation with the appropriate conjugated fluorescent secondary antibodies. Sections were then examined by fluorescence microscopy. Haematoxylin-eosin slides were also employed. Cellular heterogeneity and morphological modulations were identified within the epithelial and connective tissue elements of the enamel organ suggesting complex cellular interactions and indicating the use of enamel organ term to represent all these regions. Also, some ion transportation activity, and nos1 and cox1 signalling pathways have been identified, indicating intercellular communication between these regions. A hypothesis was suggested, to explain the morphological modulation of ameloblasts and papillary cells during enamel maturation aimed to increase the transporting membrane surface area to accomplish faster and bulker ion transportation to achieve controlled pH and to direct Ca2+ towards enamel. Connective tissue covering epithelial cells of the enamel organ showed morphological and physiological interaction during enamel maturation, suggesting new functional concepts.


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