scholarly journals Cytokinin response factors regulate PIN-FORMED auxin transporters

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Mária Šimášková ◽  
José Antonio O’Brien ◽  
Mamoona Khan ◽  
Giel Van Noorden ◽  
Krisztina Ötvös ◽  
...  
Keyword(s):  
Response Factors ◽  
Cytokinin Response

Clade III cytokinin response factors share common roles in response to oxidative stress responses linked to cytokinin synthesis

2021 ◽  
Vol 72 (8) ◽  
pp. 3294-3306
Author(s):  
Ariel M Hughes ◽  
H Tucker Hallmark ◽  
Lenka Plačková ◽  
Ondrej Novák ◽  
Aaron M Rashotte
Keyword(s):  
Oxidative Stress ◽  
Transcription Factors ◽  
Stress Response ◽  
Stress Responses ◽  
Oxidative Stress Response ◽  
Response Factors ◽  
Ontology Term ◽  
Regulated Expression ◽  
Cytokinin Response ◽  
Oxidative Stress Responses

Abstract Cytokinin response factors (CRFs) are transcription factors that are involved in cytokinin (CK) response, as well as being linked to abiotic stress tolerance. In particular, oxidative stress responses are activated by Clade III CRF members, such as AtCRF6. Here we explored the relationships between Clade III CRFs and oxidative stress. Transcriptomic responses to oxidative stress were determined in two Clade III transcription factors, Arabidopsis AtCRF5 and tomato SlCRF5. AtCRF5 was required for regulated expression of >240 genes that are involved in oxidative stress response. Similarly, SlCRF5 was involved in the regulated expression of nearly 420 oxidative stress response genes. Similarities in gene regulation by these Clade III members in response to oxidative stress were observed between Arabidopsis and tomato, as indicated by Gene Ontology term enrichment. CK levels were also changed in response to oxidative stress in both species. These changes were regulated by Clade III CRFs. Taken together, these findings suggest that Clade III CRFs play a role in oxidative stress response as well as having roles in CK signaling.

scholarly journals Vascular Expression and C-Terminal Sequence Divergence of Cytokinin Response Factors in Flowering Plants

2012 ◽  
Vol 53 (10) ◽  
pp. 1683-1695 ◽  
Author(s):  
Paul J. Zwack ◽  
Xiuling Shi ◽  
Bruce R. Robinson ◽  
Sarika Gupta ◽  
Margaret A. Compton ◽  
...  
Keyword(s):  
Sequence Divergence ◽  
Flowering Plants ◽  
Terminal Sequence ◽  
Response Factors ◽  
Cytokinin Response ◽  
Vascular Expression

scholarly journals Genome-Wide Identification, Phylogeny, Evolution and Expression Patterns of AP2/ERF Genes and Cytokinin Response Factors in Brassica rapa ssp. pekinensis

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e83444 ◽  
Author(s):  
Zhenning Liu ◽  
Lijun Kong ◽  
Mei Zhang ◽  
Yanxia Lv ◽  
Yapei Liu ◽  
...  
Keyword(s):  
Brassica Rapa ◽  
Expression Patterns ◽  
Response Factors ◽  
Genome Wide ◽  
Cytokinin Response

scholarly journals The cytokinin response factors modulate root and shoot growth and promote leaf senescence in Arabidopsis

2015 ◽  
Vol 85 (1) ◽  
pp. 134-147 ◽  
Author(s):  
Tracy Raines ◽  
Carly Shanks ◽  
Chia-Yi Cheng ◽  
Duncan McPherson ◽  
Cristiana T. Argueso ◽  
...  
Keyword(s):  
Leaf Senescence ◽  
Shoot Growth ◽  
Response Factors ◽  
Root And Shoot Growth ◽  
Cytokinin Response

scholarly journals Cytokinin response factors integrate auxin and cytokinin pathways for female reproductive organ development

Development ◽  
2016 ◽  
Vol 143 (23) ◽  
pp. 4419-4424 ◽  
Author(s):  
Mara Cucinotta ◽  
Silvia Manrique ◽  
Andrea Guazzotti ◽  
Nadia E. Quadrelli ◽  
Marta A. Mendes ◽  
...  
Keyword(s):  
Reproductive Organ ◽  
Organ Development ◽  
Response Factors ◽  
Female Reproductive Organ ◽  
Cytokinin Response

scholarly journals Lineage specific conservation of cis-regulatory elements in Cytokinin Response Factors

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Rachel V. Powell ◽  
Courtney R. Willett ◽  
Leslie R. Goertzen ◽  
Aaron M. Rashotte
Keyword(s):  
Expression Patterns ◽  
Regulatory Elements ◽  
Promoter Regions ◽  
Response Factors ◽  
Functional Roles ◽  
Promoter Sequences ◽  
Significant Patterns ◽  
In Cis ◽  
Cytokinin Response ◽  
Specific Conservation

Abstract Expression patterns of genes are controlled by short regions of DNA in promoter regions known as cis-regulatory elements. How expression patterns change due to alterations in cis-regulatory elements in the context of gene duplication are not well studied in plants. Over 300 promoter sequences from a small, well-conserved family of plant transcription factors known as Cytokinin Response Factors (CRFs) were examined for conserved motifs across several known clades present in Angiosperms. General CRF and lineage specific motifs were identified. Once identified, significantly enriched motifs were then compared to known transcription factor binding sites to elucidate potential functional roles. Additionally, presence of similar motifs shows that levels of conservation exist between different CRFs across land plants, likely occurring through processes of neo- or sub-functionalization. Furthermore, significant patterns of motif conservation are seen within and between CRF clades suggesting cis-regulatory regions have been conserved throughout CRF evolution.

Review – Cytokinin Response Factors: Responding to more than cytokinin

Plant Science ◽  
2019 ◽  
Vol 289 ◽  
pp. 110251 ◽  
Author(s):  
H. Tucker Hallmark ◽  
Aaron M. Rashotte
Keyword(s):  
Response Factors ◽  
Cytokinin Response

Поправочные коэффициенты в формулах для расчета содержания примесей: сущность, способы определения и их ограничения

2019 ◽  
Vol 53 (5) ◽  
pp. 55-60 ◽  
Author(s):  
Наум Аронович Эпштейн
Keyword(s):  
Correction Factors ◽  
Response Factors ◽  
Relative Response

Представлены формулы для расчета коэффициентов относительной чувствительности RRF (relative response factors) и поправочных коэффициентов F (correction factors) примесей, а также формулы, необходимые для понимания сущности коэффициентов RRF и F. Рассмотрены основные способы определения поправочных коэффициентов и их ограничения (условия, выполнение которых необходимо для корректного определения RRF и F). Эти ограничения не отражены в Европейской фармакопее и в Фармакопее США, но от их учета зависит правильность определения значений поправочных коэффициентов. Приведены примеры и даны рекомендации для надежного определения и правильного использования поправочных коэффициентов.

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