Genome-wide analysis of PRR gene family uncovers their roles in circadian rhythmic changes and response to drought stress in <i>Gossypium hirsutum</i> L.

Wang, Jingjing; Du, Zhaohai; Huo, Xuehan; Zhou, Juan; Yu, Chunmei; Zhang, Jingxia; Pan, Ao; Wang, Xiaoyang; Wang, Furong; Zhang, Jun

doi:10.7717/peerj.9936

Cited by 11 publications

(9 citation statements)

References 101 publications

(127 reference statements)

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“…The temperature and light cycle were set at 24 °C with a 14 h/10 h (light and dark) photoperiod. After two days of culture, the seedlings were treated with 400 mM PEG6000 [ 64 ] and 150 mM NaCl treatment [ 65 ], respectively. The control groups were set for each treatment.…”

Section: Methodsmentioning

confidence: 99%

Genome-wide identification and analysis of ACP gene family in Sorghum bicolor (L.) Moench

Hua

et al. 2022

BMC Genomics

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Background Acyl carrier proteins (ACP) constitute a very conserved carrier protein family. Previous studies have found that ACP not only takes part in the fatty acid synthesis process of almost all organisms, but also participates in the regulation of plant growth, development, and metabolism, and makes plants adaptable to stresses. However, this gene family has not been systematically studied in sorghum. Results Nine ACP family members were identified in the sorghum genome, which were located on chromosomes 1, 2, 5, 7, 8 and 9, respectively. Evolutionary analysis among different species divided the ACP family into four subfamilies, showing that the SbACPs were more closely related to maize. The prediction results of subcellular localization showed that SbACPs were mainly distributed in chloroplasts and mitochondria, while fluorescence localization showed that SbACPs were mainly localized in chloroplasts in tobacco leaf. The analysis of gene structure revealed a relatively simple genetic structure, that there were 1–3 introns in the sorghum ACP family, and the gene structure within the same subfamily had high similarity. The amplification method of SbACPs was mainly large fragment replication, and SbACPs were more closely related to ACPs in maize and rice. In addition, three-dimensional structure analysis showed that all ACP genes in sorghum contained four α helices, and the second helix structure was more conserved, implying a key role in function. Cis-acting element analysis indicated that the SbACPs might be involved in light response, plant growth and development regulation, biotic and abiotic stress response, plant hormone regulation, and other physiological processes. What’s more, qRT-PCR analysis uncovered that some of SbACPs might be involved in the adaptive regulation of drought and salt stresses, indicating the close relationship between fatty acids and the resistance to abiotic stresses in sorghum. Conclusions In summary, these results showed a comprehensive overview of the SbACPs and provided a theoretical basis for further studies on the biological functions of SbACPs in sorghum growth, development and abiotic stress responses.

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Section: Methodsmentioning

confidence: 99%

Genome-wide identification and analysis of ACP gene family in Sorghum bicolor (L.) Moench

Hua

et al. 2022

BMC Genomics

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“…Analysis of genome-wide gene expression revealed that the core components of the clock are conserved between plant species [ 24 , 25 ]. In Arabidopsis , the circadian clock is composed of a negative feedback loop comprising three inhibitory steps [ 26 , 27 ].…”

Section: How Does the Circadian Clock Work?mentioning

confidence: 99%

“…The obvious rhythmic expression trend with PEG treatment as well as qRT-PCR verification of PEG-induced expression of several members of the PRR gene family uncovered the involvement of GhPRR in drought-stress response in Gossypium hirsutum [ 25 ]. In Arabidopsis , expression of drought-stress-response genes including DREB1/CBF (DEHYDRATION-RESPONSIVE ELEMENT B1/C-REPEAT-BINDING FACTOR) was conferred in prr9 prr7 prr5 mutants [ 98 ].…”

Section: Circadian Clock Enhances Fitness By Improving Plant Drought-...mentioning

confidence: 99%

“…A comparison between the circadian clock and ABA-responsive transcriptional profile revealed 40% of ABA-responsive genes are controlled by the circadian clock [ 105 ]. Since the plant circadian clock has a role in drought- and osmotic-stress tolerance [ 25 , 30 , 73 , 106 ], underlying its mechanism of action in plant stress response is a valuable approach in the enhancement of plants’ performance under stress conditions [ 7 ]. It has been shown that tolerance to stressors would be disturbed in plants with impaired central oscillator activity [ 107 , 108 , 109 ].…”

Section: Circadian Clock Interacts With Aba Signaling Pathwaymentioning

confidence: 99%

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Regulatory Role of Circadian Clocks on ABA Production and Signaling, Stomatal Responses, and Water-Use Efficiency under Water-Deficit Conditions

Kamrani

Shomali

Aliniaeifard

et al. 2022

Cells

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Plants deploy molecular, physiological, and anatomical adaptations to cope with long-term water-deficit exposure, and some of these processes are controlled by circadian clocks. Circadian clocks are endogenous timekeepers that autonomously modulate biological systems over the course of the day–night cycle. Plants’ responses to water deficiency vary with the time of the day. Opening and closing of stomata, which control water loss from plants, have diurnal responses based on the humidity level in the rhizosphere and the air surrounding the leaves. Abscisic acid (ABA), the main phytohormone modulating the stomatal response to water availability, is regulated by circadian clocks. The molecular mechanism of the plant’s circadian clock for regulating stress responses is composed not only of transcriptional but also posttranscriptional regulatory networks. Despite the importance of regulatory impact of circadian clock systems on ABA production and signaling, which is reflected in stomatal responses and as a consequence influences the drought tolerance response of the plants, the interrelationship between circadian clock, ABA homeostasis, and signaling and water-deficit responses has to date not been clearly described. In this review, we hypothesized that the circadian clock through ABA directs plants to modulate their responses and feedback mechanisms to ensure survival and to enhance their fitness under drought conditions. Different regulatory pathways and challenges in circadian-based rhythms and the possible adaptive advantage through them are also discussed.

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“…Excessive use of chemical fertilizers, especially N fertilizers, increases the cost of crop production and greenhouse gas emissions, as well as soil and groundwater pollution 9 , 10 . Therefore, optimization of crop production under nitrogen restriction conditions is a major challenge in agriculture 11 .…”

Section: Introductionmentioning

confidence: 99%

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Esmaeili

Aliniaeifard

Daylami

et al. 2022

Sci Rep

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Identifying environmental factors that improve plant growth and development under nitrogen (N) constraint is essential for sustainable greenhouse production. In the present study, the role of light intensity and N concentrations on the biomass partitioning and physiology of chrysanthemum was investigated. Four light intensities [75, 150, 300, and 600 µmol m−2 s−1 photosynthetic photon flux density (PPFD)] and three N concentrations (5, 10, and 15 mM N L−1) were used. Vegetative and generative growth traits were improved by increase in PPFD and N concentration. High N supply reduced stomatal size and gs in plants under lowest PPFD. Under low PPFD, the share of biomass allocated to leaves and stem was higher than that of flower and roots while in plants grown under high PPFD, the share of biomass allocated to flower and root outweighed that of allocated to leaves and stem. As well, positive effects of high PPFD on chlorophyll content, photosynthesis, water use efficiency (WUE), Nitrogen use efficiency (NUE) were observed in N-deficient plants. Furthermore, photosynthetic functionality improved by raise in PPFD. In conclusion, high PPFD reduced the adverse effects of N deficiency by improving photosynthesis and stomatal functionality, NUE, WUE, and directing biomass partitioning toward the floral organs.

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Genome-wide analysis of PRR gene family uncovers their roles in circadian rhythmic changes and response to drought stress in Gossypium hirsutum L.

Cited by 11 publications

References 101 publications

Genome-wide identification and analysis of ACP gene family in Sorghum bicolor (L.) Moench

Genome-wide identification and analysis of ACP gene family in Sorghum bicolor (L.) Moench

Regulatory Role of Circadian Clocks on ABA Production and Signaling, Stomatal Responses, and Water-Use Efficiency under Water-Deficit Conditions

Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

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