Cytokinin Signaling in Plant Response to Abiotic Stresses

Thư, Nguyễn Bình Anh; Hoang, Xuan Lan Thi; Truc, Mai Thuy; Sulieman, Saad; Thảo, Nguyễn Phương; Tran, Lam‐Son Phan

doi:10.1002/9781118889022.ch4

Cited by 16 publications

(19 citation statements)

References 179 publications

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“…In non-potato plants, CKs alone were able to induce the emergence of tuber-like structures (Guivarc’h et al ., 2002; Eviatar-Ribak et al ., 2013; Frugier et al ., 2008; Miri et al ., 2016). Apart the impact on the formation of tubers, CKs are known to regulate overall plant architecture, biomass partitioning as well as resistance to biotic and abiotic stress-factors (Aksenova et al ., 2000; Abelenda and Prat, 2013; Zwack and Rashotte, 2015; Brütting et al ., 2017; Thu et al ., 2017). All these point to the importance to investigate CK signaling system in plants, in particular in tuber crops like potato.…”

Section: Discussionmentioning

confidence: 99%

“…Elevated doses of CKs affect the overall architectonics of potato plants, suppressing the root development (Aksenova et al ., 2000). In addition, CKs participate in plant defense against biotic and abiotic adverse factors (Zwack and Rashotte, 2015; Brütting et al ., 2017; Thu et al ., 2017). All the above indicates the important role of CKs in both the formation of tubers and the general development and resistance of potato plants.…”

Section: Introductionmentioning

confidence: 99%

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Cytokinin perception in potato: New features of canonic players

Lomin

Myakushina

Kolachevskaya

et al. 2018

Preprint

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15Potato is the most economically important non-cereal food crop. Tuber formation in potato is regulated 16 by phytohormones, cytokinins in particular. The present work was aimed to study cytokinin signal 17 perception in potato. The sequenced potato genome of doubled monoploid Phureja was used for 18 bioinformatic analysis and as a tool for identification of cytokinin receptors from autotetraploid potato 19 cv. Désirée. All basic elements of multistep phosphorelay (MSP) required for cytokinin signal 20 transduction were identified in Phureja genome, including three genes orthologous to three cytokinin 21 receptor genes (AHK 2-4) of Arabidopsis. As distinct from Phureja, autotetraploid potato contains at 22 least two allelic isoforms of each receptor type. Putative receptor genes from Désirée plants were 23 cloned, sequenced and expressed, and main characteristics of encoded proteins, firstly their consensus 24 motifs, structure models, ligand-binding properties, and the ability to transmit cytokinin signal, were 25 determined. In all studied aspects the predicted sensor histidine kinases met the requirements for 26 genuine cytokinin receptors. Expression of potato cytokinin receptors was found to be organ-specific 27 and sensitive to growth conditions, particularly to sucrose content. Our results provide a solid basis for 28 further in-depth study of cytokinin signaling system and biotechnological improvement of potato. 29 2

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cytokinin perception in potato: New features of canonic players

Lomin

Myakushina

Kolachevskaya

et al. 2018

Preprint

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“…Plants have adopted a variety of defense mechanisms that ultimately lessen the negative effects of environmental adversities on plant growth and productivity [11]. These activities are involved in various molecular, biochemical, and physiological adjustments [12], and are under regulation of various stress-related signaling pathways [13][14][15][16]. Although the participants, roles and mechanisms might be differed, a general scheme is shared among these signaling pathways, which are involved in the perception of external stimuli, transduction of signal molecules and regulation of gene expression [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Due to its contributions in many different biological processes, TCS studies have attracted much attention. For example, TCSs have been found to be involved in megagametogenesis, light perception, flowering, osmosensing as well as in ethylene-and cytokinin (CK)-signaling pathways [14,[22][23][24][25]. Additionally, genome-wide studies of TCSs have been carried out in a variety of plant species, including chickpea (Cicer arietinum) [26], tomato (Solanum lycopersicum) [27], cucumber (Cucumis sativus) [28], banana (Musa acuminata and Musa balbisiana) [29], and soybean (Glycine max) [30].…”

Section: Introductionmentioning

confidence: 99%

Heterologous Expression of a Soybean Gene RR34 Conferred Improved Drought Resistance of Transgenic Arabidopsis

Nghia

Chuong

Hoang

et al. 2020

Plants

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Two-component systems (TCSs) have been identified as participants in mediating plant response to water deficit. Nevertheless, insights of their contribution to plant drought responses and associated regulatory mechanisms remain limited. Herein, a soybean response regulator (RR) gene RR34, which is the potential drought-responsive downstream member of a TCS, was ectopically expressed in the model plant Arabidopsis for the analysis of its biological roles in drought stress response. Results from the survival test revealed outstanding recovery ratios of 52%–53% in the examined transgenic lines compared with 28% of the wild-type plants. Additionally, remarkedly lower water loss rates in detached leaves as well as enhanced antioxidant enzyme activities of catalase and superoxide dismutase were observed in the transgenic group. Further transcriptional analysis of a subset of drought-responsive genes demonstrated higher expression in GmRR34-transgenic plants upon exposure to drought, including abscisic acid (ABA)-related genes NCED3, OST1, ABI5, and RAB18. These ectopic expression lines also displayed hypersensitivity to ABA treatment at germination and post-germination stages. Collectively, these findings indicated the ABA-associated mode of action of GmRR34 in conferring better plant performance under the adverse drought conditions.

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“…Further research of various ipt mutants revealed that transfer RNA IPTs are responsible for biosynthesis of cis-zeatin-type CKs while ATP/ADP IPTs are involved in synthesis of isopentenyl adenine-and trans-zeatin-type CKs (Ha et al, 2012;O'Brien, Benkova, 2013). Moreover, relative interaction of CK with other phytohormones including abscisic acid and auxin, which are concerned as key phytohormones, has a critical role in plant development and adaptation (Růžička et al, 2009;Bishopp et al, 2011;Thu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

PHYSIOLOGICAL ANALYSES OF AN OVER-EXPRESSING CYTOKININ METABOLIC GENE GmIPT10 UNDER NORMAL AND DROUGHT CONDITIONS

Hải¹,

Thien²,

Xuan³

et al. 2018

Vietnam J. Biotechnol.

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Cytokinin (CK) is an important phytohormone, which not only plays significant role in plant development but also involves in mediating plant stress tolerance. Previous studies showed that the drought tolerance can be improved by stress-inducible overexpression of adenine isopentenyl transferase (IPT), which is a critical enzyme in CKs biosynthesis. To study the role of soybean GmIPT10 in regulating plant tolerance, we successfully generated GmIPT10-overexpressing transgenic soybean plants and screened a line carrying homozygous, single copy of transgene. Analyzing several physiological traits of this line demonstrated that it possessed stress tolerance characteristics, including increased primary root and shoot lengths, better production of shoot biomass, higher number of trifoliate leaves, and higher survival rate than the non-transgenic plants under drought condition. The net house experiments also showed that the GmIPT10-overexpressing transgenic soybean had a greater relative water content compared to the control genotype under applied drought condition. Therefore, this report indicated that plant drought tolerance might be enhanced via regulating expression of GmIPT10.

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Cytokinin Signaling in Plant Response to Abiotic Stresses

Cited by 16 publications

References 179 publications

Cytokinin perception in potato: New features of canonic players

Cytokinin perception in potato: New features of canonic players

Heterologous Expression of a Soybean Gene RR34 Conferred Improved Drought Resistance of Transgenic Arabidopsis

PHYSIOLOGICAL ANALYSES OF AN OVER-EXPRESSING CYTOKININ METABOLIC GENE GmIPT10 UNDER NORMAL AND DROUGHT CONDITIONS

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