Mechanism underlying rapid responses to boron deprivation in Arabidopsis roots

Kobayashi, Masaru; Miyamoto, Maako; Matoh, Tōru; Kitajima, Sakihito; Hanano, Shigeru; Sumerta, I Nyoman; Narise, Takafumi; Suzuki, Hideyuki; Sakurai, Nozomu; Shibata, Daisuke

doi:10.1080/00380768.2017.1416670

Cited by 25 publications

(36 citation statements)

References 38 publications

(53 reference statements)

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“…In particular, the CrRLK FERONIA has been implicated in the perception of mechanical signals, including hypo-osmotic shock ( (Shih et al, 2014). Here we investigate the role of another class of candidate cell swelling sensors, mechanosensitive ion channels (MS) (Cazalé et al, 1998;Haswell and Verslues, 2015;Kobayashi et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Mechanosensitive Ion Channel MSL10 Potentiates Responses to Cell Swelling in Arabidopsis Seedlings

Basu

Haswell

2020

Current Biology

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Section: Introductionmentioning

confidence: 99%

The Mechanosensitive Ion Channel MSL10 Potentiates Responses to Cell Swelling in Arabidopsis Seedlings

Basu

Haswell

2020

Current Biology

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“…Boron-deficiency elevates JA levels in Arabidopsis Previous studies indicated the potential importance of JA in the low-B adaptive response in plants (Peng et al, 2012;Kobayashi et al, 2017). Short-term transcriptional analysis of the JA biosynthesis genes by quantitative reverse transcription polymerase chain reaction (qRT-PCR) showed that all were upregulated, except ACX2, ACX3, and ACX4, in response to B-deficiency treatment for 3 h in the shoots (Figure 1) and then, over the subsequent 24 h, the expression of LOX2, LOX3, AOS, AOC1, and AOC3 declined gradually (Figure 1A-C).…”

Section: Resultsmentioning

confidence: 99%

Induction of jasmonic acid biosynthetic genes inhibits Arabidopsis growth in response to low boron

Huang

Wang

et al. 2021

JIPB

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The essential micronutrient boron (B) has key roles in cell wall integrity and B deficiency inhibits plant growth. The role of jasmonic acid (JA) in plant growth inhibition under B deficiency remains unclear. Here, we report that low B elevates JA biosynthesis in Arabidopsis thaliana by inducing the expression of JA biosynthesis genes. Treatment with JA inhibited plant growth and, a JA biosynthesis inhibitor enhanced plant growth, indicating that the JA induced by B deficiency affects plant growth. Furthermore, examination of the JA signaling mutants jasmonate resistant1, coronatine insensitive1-2, and myc2 showed that JA signaling negatively regulates plant growth under B deficiency. We identified a low-B responsive transcription factor, ERF018, and used yeast one-hybrid assays and transient activation assays in Nicotiana benthamiana leaf cells to demonstrate that ERF018 activates the expression of JA biosynthesis genes. ERF018 overexpression (OE) lines displayed stunted growth and up-regulation of JA biosynthesis genes under normal B conditions, compared to Col-0 and the difference between ERF018 OE lines and Col-0 diminished under low B. These results suggest that ERF018 enhances JA biosynthesis and thus negatively regulates plant growth. Taken together, our results highlight the importance of JA in the effect of low B on plant growth.

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“…Accordingly, B can induce molecular pathways, which correspond to a series of actions among molecules in a cell that can turn genes on and off, thereby regulating developmental phase transitions ( Figure 1 ). These transitions are involved in the coordination of the transition of plants to the adult phase ( Redondo-Nieto et al, 2012 ; Lu et al, 2014 ; Xu et al, 2016 ; Kobayashi et al, 2018 ; Sakamoto et al, 2018 ).…”

Section: The Complexity That Lies Behind the Element Boronmentioning

confidence: 99%

Boron: More Than an Essential Element for Land Plants?

et al. 2021

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Although boron (B) is an element that has long been assumed to be an essential plant micronutrient, this assumption has been recently questioned. Cumulative evidence has demonstrated that the players associated with B uptake and translocation by plant roots include a sophisticated set of proteins used to cope with B levels in the soil solution. Here, we summarize compelling evidence supporting the essential role of B in mediating plant developmental programs. Overall, most plant species studied to date have exhibited specific B transporters with tight genetic coordination in response to B levels in the soil. These transporters can uptake B from the soil, which is a highly uncommon occurrence for toxic elements. Moreover, the current tools available to determine B levels cannot precisely determine B translocation dynamics. We posit that B plays a key role in plant metabolic activities. Its importance in the regulation of development of the root and shoot meristem is associated with plant developmental phase transitions, which are crucial processes in the completion of their life cycle. We provide further evidence that plants need to acquire sufficient amounts of B while protecting themselves from its toxic effects. Thus, the development of in vitro and in vivo approaches is required to accurately determine B levels, and subsequently, to define unambiguously the function of B in terrestrial plants.

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Mechanism underlying rapid responses to boron deprivation in Arabidopsis roots

Cited by 25 publications

References 38 publications

The Mechanosensitive Ion Channel MSL10 Potentiates Responses to Cell Swelling in Arabidopsis Seedlings

The Mechanosensitive Ion Channel MSL10 Potentiates Responses to Cell Swelling in Arabidopsis Seedlings

Induction of jasmonic acid biosynthetic genes inhibits Arabidopsis growth in response to low boron

Boron: More Than an Essential Element for Land Plants?

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