Abscisic Acid and Jasmonate Metabolisms Are Jointly Regulated During Senescence in Roots and Leaves of Populus trichocarpa

Wojciechowska, Natalia; Wilmowicz, Emilia; Marzec-Schmidt, Katarzyna; Ludwików, Agnieszka; Bagniewska‐Zadworna, Agnieszka

doi:10.3390/ijms21062042

Cited by 13 publications

(6 citation statements)

References 98 publications

(137 reference statements)

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“…In our research, the levels of ABA, JA, and SA increased under S deficiency, while the application of Si decreased their level. These hormones are involved in plant response to mineral deficiencies and regulate the senescence process in plants [65,[76][77][78]. The lower level of phytohormones induced by Si nutrition in this study can be associated with the expression of S transporters.…”

Section: Si Regulates Source To Sink Metabolic Homeostasis and Maintamentioning

confidence: 63%

Silicon Regulates Source to Sink Metabolic Homeostasis and Promotes Growth of Rice Plants under Sulfur Deficiency

Réthoré¹,

Ali²,

Yvin³

et al. 2020

IJMS

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Being an essential macroelement, sulfur (S) is pivotal for plant growth and development, and acute deficiency in this element leads to yield penalty. Since the last decade, strong evidence has reported the regulatory function of silicon (Si) in mitigating plant nutrient deficiency due to its significant diverse benefits on plant growth. However, the role of Si application in alleviating the negative impact of S deficiency is still obscure. In the present study, an attempt was undertaken to decipher the role of Si application on the metabolism of rice plants under S deficiency. The results showed a distinct transcriptomic and metabolic regulation in rice plants treated with Si under both short and long-term S deficiencies. The expression of Si transporters OsLsi1 and OsLsi2 was reduced under long-term deficiency, and the decrease was more pronounced when Si was provided. The expression of OsLsi6, which is involved in xylem loading of Si to shoots, was decreased under short-term S stress and remained unchanged in response to long-term stress. Moreover, the expression of S transporters OsSULTR tended to decrease by Si supply under short-term S deficiency but not under prolonged S stress. Si supply also reduced the level of almost all the metabolites in shoots of S-deficient plants, while it increased their level in the roots. The levels of stress-responsive hormones ABA, SA, and JA-lle were also decreased in shoots by Si application. Overall, our finding reveals the regulatory role of Si in modulating the metabolic homeostasis under S-deficient condition.

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Section: Si Regulates Source To Sink Metabolic Homeostasis and Maintamentioning

confidence: 63%

Silicon Regulates Source to Sink Metabolic Homeostasis and Promotes Growth of Rice Plants under Sulfur Deficiency

Réthoré¹,

Ali²,

Yvin³

et al. 2020

IJMS

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show abstract

“…The plant hormone JA and its derivatives are involved in various aspects of plant growth, such as biotic, abiotic stresses, and development (Chen et al., 2020; Fugate et al., 2018; Hu et al., 2017; Seo et al., 1999; Suzuki et al., 2021; Wojciechowska et al., 2020). Recent studies showed that JA is also involved in SCW formation (Behr et al., 2019; Pauwels et al., 2008; Sehr et al., 2010).…”

Section: Discussionmentioning

confidence: 99%

Jasmonate activates secondary cell wall biosynthesis through MYC2‐MYB46 module

Im,

Son,

Kim

et al. 2023

The Plant Journal

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SUMMARYFormation of secondary cell wall (SCW) is tightly regulated spatiotemporally by various developmental and environmental signals. Successful fine‐tuning of the trade‐off between SCW biosynthesis and stress responses requires a better understanding of how plant growth is regulated under environmental stress conditions. However, the current understanding of the interplay between environmental signaling and SCW formation is limited. The lipid‐derived plant hormone jasmonate (JA) and its derivatives are important signaling components involved in various physiological processes including plant growth, development, and abiotic/biotic stress responses. Recent studies suggest that JA is involved in SCW formation but the signaling pathway has not been studied for how JA regulates SCW formation. We tested this hypothesis using the transcription factor MYB46, a master switch for SCW biosynthesis, and JA treatments. Both the transcript and protein levels of MYB46, a master switch for SCW formation, were significantly increased by JA treatment, resulting in the upregulation of SCW biosynthesis. We then show that this JA‐induced upregulation of MYB46 is mediated by MYC2, a central regulator of JA signaling, which binds to the promoter of MYB46. We conclude that this MYC2‐MYB46 module is a key component of the plant response to JA in SCW formation.

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“…ABA induces a delay in cell elongation by inhibiting cytokinin signaling, consequently root architecture is altered, and root growth is retarded (Wang et al 2019). Root senescence was controlled by the regulation of jasmonate and ABA (Wojciechowska et al 2020). ABA, salicylic acid and methyl jasmonate increased the sulphoraphene and glucosinolate accumulation in taproots (Chen et al 2019).…”

Section: Modulation Of Root Architecturementioning

confidence: 99%

Insight into abscisic acid perception and signaling to increase plant tolerance to abiotic stress

Rehman

Azhar

Hinze

et al. 2021

Journal of Plant Interactions

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As changes occur in climate, abiotic stress to agricultural production is an inevitable threat to farmers' ability to meet an increasing demand to feed people. Plants have developed a stress tolerance mechanism to reduce the effects of such environmental conditions by engaging various stressresponsive genes. Accordingly, various signal transduction networks are used to fabricate stress tolerance. Engineering of the phytohormone abscisic acid (ABA) could be a choice method for scientists to mitigate abiotic stress because of its widespread role in response to salt, drought, heat, and cold stresses including triggering stomatal regulation and leaf senescence. In addition, it plays a crucial role in seed maturation, seed dormancy, stomatal opening/closure and increases resistance against pathogens through callose depositions and regulates physiological strategies in stress signaling pathways through synchronizing of hormonal crosstalk. The transcriptional regulation can be achieved through ABA-dependent and ABA-independent signaling cascades. ABAI5 and RD29A genes are regulated in ABA-dependent and independent manners to mitigate stress tolerance. ABA regulatory components (RCARs) including pyrabactin resistance PYR/PYL genes, SnRK2 type protein kinases, transcription factors (WRKY, NAC, AREB1, bZIP, RGL2, and ABRE), reactive oxygen species, jasmonic acid and cytokinin hormones regulate ABA gene action in response to abiotic stresses.

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Abscisic Acid and Jasmonate Metabolisms Are Jointly Regulated During Senescence in Roots and Leaves of Populus trichocarpa

Cited by 13 publications

References 98 publications

Silicon Regulates Source to Sink Metabolic Homeostasis and Promotes Growth of Rice Plants under Sulfur Deficiency

Silicon Regulates Source to Sink Metabolic Homeostasis and Promotes Growth of Rice Plants under Sulfur Deficiency

Jasmonate activates secondary cell wall biosynthesis through MYC2‐MYB46 module

Insight into abscisic acid perception and signaling to increase plant tolerance to abiotic stress

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