Ethylene and plant responses to phosphate deficiency

Song, Li; Liu, Dong

doi:10.3389/fpls.2015.00796

Cited by 85 publications

(89 citation statements)

References 121 publications

(201 reference statements)

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“…Interestingly, it has been observed that the signal cascades for plant responses to nutrient availability converge at different levels. Thus, plasma membrane hyperpolarization and ethylene and reactive oxygen species (ROS) accumulation occur on K + , NO 3 − or PO 4 3− deprivation (Shin et al , Hernandez et al , Zheng et al , Rubio et al , Song and Liu ; Fig. ).…”

Section: Signaling Of K+ and No3− Po43− And So42− Deficienciesmentioning

confidence: 99%

The combination of K⁺ deficiency with other environmental stresses: What is the outcome?

Nieves‐Cordones

Ródenas

Lara

et al. 2018

Physiologia Plantarum

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Potassium (K ) is a macronutrient known for its high mobility and positive charge, which allows efficient and fast control of the electrical balance and osmotic potential in plant cells. Such features allow K to remarkably contribute to plant stress adaptation. Some agricultural lands are deficient in K , imposing a stress that reduces crop yield and makes fertilization a common practice. However, individual stress conditions in the field are rare, and crops usually face a combination of different stresses. As plant response to a stress combination cannot always be deduced from individual stress action, it is necessary to gain insights into the specific mechanisms that connect K homeostasis with other stress effects to improve plant performance in the context of climate change. Surprisingly, plant responses to environmental stresses under a K -limiting scenario are poorly understood. In the present review, we summarize current knowledge and find substantial gaps regarding specific outcomes of K deficiency in addition to other environmental stresses. In this regard, combined nutrient deficiencies of K and other macronutrients are covered in the first part of the review and interactions arising from K deficiency with salinity, drought and biotic factors in the second part. Information available so far suggests a prominent role of potassium and nitrate transport systems and their regulatory proteins in the response of plants to several stress combinations. Thus, such molecular pathways, which are located at the crossroad between K homeostasis and environmental stresses, could be considered biotechnological targets in future studies.

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Section: Signaling Of K+ and No3− Po43− And So42− Deficienciesmentioning

confidence: 99%

The combination of K⁺ deficiency with other environmental stresses: What is the outcome?

Nieves‐Cordones

Ródenas

Lara

et al. 2018

Physiologia Plantarum

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“…More importantly, several evidence have indicated that ethylene promotes auxin biosynthesis and transport to regulate root development (Swarup et al, 2007;Stepanova and Alonso, 2009). Interestingly, miR399 was involved in ethylene systemic signaling pathway to regulate root development (Song and Liu, 2015). Further, a study in Arabidopsis reported by Iglesias et al (2014), demonstrated that miR393 is involved in the downregulation of TIR1 and AFB2, a family of F-box receptors, which consequently repressed auxin signaling pathway and affected the plant root architecture.…”

Section: Mirnas and Hormonal Coordinated Regulation Of Nutrient Homeomentioning

confidence: 99%

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Shahzad¹,

Harlina²,

Ayaad³

et al. 2018

Plant Omics

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A constant supply of soil nutrients is critical for the normal growth and development of plants. However, most environments are unstable and this variability depends on numerous factors that include availability of water content, pH, redox potential, an abundance of organic matter as well as microorganisms in soils. To overcome these hurdles and to maintain nutritional homeostasis, plants have evolved sophisticated systems for the continuous provision of soil nutrients necessary for their uninterrupted growth. In this pressing scenario, plant microRNAs (miRNAs) have emerged as a central regulator of nutrients uptake and transport during limited nutrient conditions. Numerous studies establish the intrinsic involvement of miRNAs and their immediate targets facilitating the core mechanisms related to nutrient homeostasis. In this review, we focus on global overview of miRNAs and their dynamic roles involved in keeping nutritional balance within the plants mediated via post-transcriptional regulation by transcript cleavage or translational inhibition of their target mRNAs. In addition, we have also focused on some of the forefront plant adaptations mediated by miRNAs during nutrient deficiency, such as root architecture modifications, transport channel modulation, long distance signaling and subsequent nutrient mobilization through phloem. Moreover, plant strategy to bring out such alterations is a highly perplexing mechanism that requires changes at large scale which involves coordinated regulation of miRNAs and plant hormones at multiple levels. Deciphering the underlying miRNAs-based mechanisms for streamlining nutrient uptake and transport would be a giant step towards solving this conundrum.

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“…Nowadays, however, there is evidence that ethylene also plays an important role in the regulation of physiological responses to P deficiency, as is the case with Fe deficiency [5,69,70,97,98]. Using the P transporter gene, AtPT2, as a marker gene to identify mutants with alterations in the regulation of responses to P deficiency, Lei et al [69] identified a mutant of Arabidopsis thaliana, hps2, which showed enhanced responses to P deficiency.…”

Section: Hormones and Signaling Substances In The Regulation Of Fe Anmentioning

confidence: 99%

“…Both elements are abundant in soils but with poor availability for plants. Dicot plants favour their acquisition by developing physiological and morphological responses in their roots [2][3][4][5][6].…”

Section: Fe and P Nutrition In Dicot Plantsmentioning

confidence: 99%

Similarities and Differences in the Acquisition of Fe and P by Dicot Plants

et al. 2018

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This review deals with two essential plant mineral nutrients, iron (Fe) and phosphorus (P); the acquisition of both has important environmental and economic implications. Both elements are abundant in soils but are scarcely available to plants. To prevent deficiency, dicot plants develop physiological and morphological responses in their roots to specifically acquire Fe or P. Hormones and signalling substances, like ethylene, auxin and nitric oxide (NO), are involved in the activation of nutrient-deficiency responses. The existence of common inducers suggests that they must act in conjunction with nutrient-specific signals in order to develop nutrient-specific deficiency responses. There is evidence suggesting that P-or Fe-related phloem signals could interact with ethylene and NO to confer specificity to the responses to Fe-or P-deficiency, avoiding their induction when ethylene and NO increase due to other nutrient deficiency or stress. The mechanisms responsible for such interaction are not clearly determined, and thus, the regulatory networks that allow or prevent cross talk between P and Fe deficiency responses remain obscure. Here, fragmented information is drawn together to provide a clearer overview of the mechanisms and molecular players involved in the regulation of the responses to Fe or P deficiency and their interactions.

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Ethylene and plant responses to phosphate deficiency

Cited by 85 publications

References 121 publications

The combination of K⁺ deficiency with other environmental stresses: What is the outcome?

The combination of K⁺ deficiency with other environmental stresses: What is the outcome?

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Similarities and Differences in the Acquisition of Fe and P by Dicot Plants

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Ethylene and plant responses to phosphate deficiency

Cited by 85 publications

References 121 publications

The combination of K+ deficiency with other environmental stresses: What is the outcome?

The combination of K+ deficiency with other environmental stresses: What is the outcome?

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Similarities and Differences in the Acquisition of Fe and P by Dicot Plants

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The combination of K⁺ deficiency with other environmental stresses: What is the outcome?

The combination of K⁺ deficiency with other environmental stresses: What is the outcome?