The role and proteomic analysis of ethylene in hydrogen gas-induced adventitious rooting development in cucumber (<i>Cucumis sativus</i> L.) explants

Huang, Dengjing; Bian, Biting; Zhang, Meiling; Wang, Chunlei; Li, Changxia; Liao, Weibiao

doi:10.7717/peerj.8896

Cited by 10 publications

(2 citation statements)

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“…ETH is a pleiotropic phytohormone, involving in a variety of developmental processes, such as rooting, ripening, and senescence in plants. A previous study reported that ETH may be another downstream signaling molecule in H 2 -promoted cucumber adventitious root formation [100]. Meanwhile, RuBisCO, SBPase, and OEE1 (photosynthesis-related proteins); TDH (amino acid metabolism-related protein); CAPX (stress response-related protein); and PDI (folding, modification, and degradation-related protein) might play important roles during these processes.…”

Section: H 2 Is Involved In Phytohormones Signalingmentioning

confidence: 99%

The Applications of Molecular Hydrogen in Horticulture

Zeng²,

Cheng³

et al. 2021

Horticulturae

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Improvements in the growth, yield, and quality of horticultural crops require the development of simply integrated, cost-efficient, and eco-friendly solutions. Hydrogen gas (H2) has been observed to have fertilization effects on soils by influencing rhizospheric microorganisms, resulting in improvements in crop yield and quality. Ample studies have shown that H2 has positive effects on horticultural crops, such as promoting root development, enhancing tolerance against abiotic and biotic stress, prolonging storage life, and improving postharvest quality of fruits, vegetables and cut flowers. In this review, we aim to evaluate the feasibility of molecular hydrogen application in horticulture and the strategies for its application, including H2 delivery methods, treatment timing, and the concentration of H2 applied. The discussion will be accompanied by outlining the effects of H2 and the likely mechanisms of its efficacy. In short, the application of H2 may provide novel opportunities for simple and cost efficient improvements of horticultural production in terms of increased yield and product quality but with low carbon dioxide emissions.

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Section: H 2 Is Involved In Phytohormones Signalingmentioning

confidence: 99%

The Applications of Molecular Hydrogen in Horticulture

Zeng²,

Cheng³

et al. 2021

Horticulturae

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“…These results indicated that MdIAA27 is a critical regulator of adventitious root development. Adventitious roots commonly increase the absorption area of roots and enhance their abilities to assimilate nutrients and support plants [45]. Previous studies have shown that adventitious roots promote phosphorus absorption under phosphorus deficiency conditions.…”

Section: Mdiaa27 Regulates the Number And Length Of Adventitious Root...mentioning

confidence: 99%

Transcription Factor IAA27 Positively Regulates P Uptake through Promoted Adventitious Root Development in Apple Plants

Zhao

et al. 2022

IJMS

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Phosphate (P) deficiency severely limits the growth and production of plants. Adventitious root development plays an essential role in responding to low phosphorus stress for apple plants. However, the molecular mechanisms regulating adventitious root growth and development in response to low phosphorus stress have remained elusive. In this study, a mutation (C-T) in the coding region of the apple AUXIN/INDOLE-3-ACETIC ACID 27 (IAA27) gene was identified. MdIAA27T-overexpressing transgenic apple improved the tolerance to phosphorus deficiency, which grew longer and denser adventitious roots and presented higher phosphorous content than the control plants under low phosphorus conditions, while the overexpression of MdIAA27C displayed the opposite trend. Moreover, the heterologous overexpression of MdIAA27 in tobacco yielded the same results, supporting the aforementioned findings. In vitro and in vivo assays showed that MdIAA27 directly interacted with AUXIN RESPONSE FACTOR (ARF8), ARF26 and ARF27, which regulated Small Auxin-Up RNA 76 (MdSAUR76) and lateral organ boundaries domain 16 (MdLBD16) transcription. The mutation in IAA27 resulted in altered interaction modes, which in turn promoted the release of positive ARFs to upregulate SAUR76 and LBD16 expression in low phosphorus conditions. Altogether, our studies provide insights into how the allelic variation of IAA27 affects adventitious root development in response to low phosphorus stress.

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