Regulating bulb dormancy release and flowering in lily through chemical modulation of intercellular communication

Zhao, Yajie; Pan, Wenqiang; Xin, Yin; Wu, Jingxiang; Li, Rong; Shi, Jinxin; Long, Shuo; Qu, Lianwei; Yang, Yingdong; Yi, Mingfang; Wu, Jian

doi:10.1186/s13007-023-01113-y

Cited by 3 publications

(3 citation statements)

References 42 publications

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“…In Tradescantia stamen hair cells, the pharmacological inhibition of myosin proteins was shown to differentially interfere with plasmodesma-mediated trafficking; drugs preventing myosin-to-actin attachment increased transport rates, while drugs reinforcing the attachment and blocking myosin movement decreased transport [89]. The same opposing effects have been observed in Lily [91]. However, preventing myosin-to-actin attachment in various monocot species led to the con-striction of the plasmodesmal neck region, suggesting diminished transport capacity [71].…”

Section: Control By Actin and Associated Proteinsmentioning

confidence: 78%

Distributing Plant Developmental Regulatory Proteins via Plasmodesmata

Schreiber,

Limpens,

de Keijzer

2024

Plants

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During plant development, mobile proteins, including transcription factors, abundantly serve as messengers between cells to activate transcriptional signaling cascades in distal tissues. These proteins travel from cell to cell via nanoscopic tunnels in the cell wall known as plasmodesmata. Cellular control over this intercellular movement can occur at two likely interdependent levels. It involves regulation at the level of plasmodesmata density and structure as well as at the level of the cargo proteins that traverse these tunnels. In this review, we cover the dynamics of plasmodesmata formation and structure in a developmental context together with recent insights into the mechanisms that may control these aspects. Furthermore, we explore the processes involved in cargo-specific mechanisms that control the transport of proteins via plasmodesmata. Instead of a one-fits-all mechanism, a pluriform repertoire of mechanisms is encountered that controls the intercellular transport of proteins via plasmodesmata to control plant development.

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Section: Control By Actin and Associated Proteinsmentioning

confidence: 78%

Distributing Plant Developmental Regulatory Proteins via Plasmodesmata

Schreiber,

Limpens,

de Keijzer

2024

Plants

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“…Based on the previous reports, NaHS, PAG, and HT are a donor, inhibitor, and scavenger of H 2 S [ 40 , 41 ], respectively, while NEM is a SUC transport inhibitor [ 42 ]. An appropriate concentration of NaHS, SUC, MTL, and other pharmacological reagents was selected from the preliminary experiments and previous reports [ 40 , 43 , 44 ].…”

Section: Methodsmentioning

confidence: 99%

“…The imbibed seeds were germinated on eight-layer filter paper (which was wetted with distilled water) in trays with covers (approximately 250 seeds per tray) at 26 • C for 60 h (namely 2.5 d). After germination, the 2.5 d old seedlings were classified into 11 groups, which were irrigated with 90 mL of solutions listed as follows for 12 h, respectively: Based on the previous reports, NaHS, PAG, and HT are a donor, inhibitor, and scavenger of H 2 S [40,41], respectively, while NEM is a SUC transport inhibitor [42]. An appropriate concentration of NaHS, SUC, MTL, and other pharmacological reagents was selected from the preliminary experiments and previous reports [40,43,44].…”

Section: Seed Germination and Seedling Treatmentmentioning

confidence: 99%

Metabolic and Functional Interactions of H2S and Sucrose in Maize Thermotolerance through Redox Homeodynamics

Li,

Zhou,

2024

IJMS

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Hydrogen sulfide (H2S) is a novel gasotransmitter. Sucrose (SUC) is a source of cellular energy and a signaling molecule. Maize is the third most common food crop worldwide. However, the interaction of H2S and SUC in maize thermotolerance is not widely known. In this study, using maize seedlings as materials, the metabolic and functional interactions of H2S and SUC in maize thermotolerance were investigated. The data show that under heat stress, the survival rate and tissue viability were increased by exogenous SUC, while the malondialdehyde content and electrolyte leakage were reduced by SUC, indicating SUC could increase maize thermotolerance. Also, SUC-promoted thermotolerance was enhanced by H2S, while separately weakened by an inhibitor (propargylglycine) and a scavenger (hypotaurine) of H2S and a SUC-transport inhibitor (N-ethylmaleimide), suggesting the interaction of H2S and SUC in the development of maize thermotolerance. To establish the underlying mechanism of H2S–SUC interaction-promoted thermotolerance, redox parameters in mesocotyls of maize seedlings were measured before and after heat stress. The data indicate that the activity and gene expression of H2S-metabolizing enzymes were up-regulated by SUC, whereas H2S had no significant effect on the activity and gene expression of SUC-metabolizing enzymes. In addition, the activity and gene expression of catalase, glutathione reductase, ascorbate peroxidase, peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, and superoxide dismutase were reinforced by H2S, SUC, and their combination under non-heat and heat conditions to varying degrees. Similarly, the content of ascorbic acid, flavone, carotenoid, and polyphenol was increased by H2S, SUC, and their combination, whereas the production of superoxide radicals and the hydrogen peroxide level were impaired by these treatments to different extents. These results imply that the metabolic and functional interactions of H2S and sucrose signaling exist in the formation of maize thermotolerance through redox homeodynamics. This finding lays the theoretical basis for developing climate-resistant maize crops and improving food security.

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Emerging into the world: regulation and control of dormancy and sprouting in geophytes

Kumari,

Kumari Manhas,

Jose-Santhi

et al. 2024

Journal of Experimental Botany

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Geophytic plants synchronize growth and quiescence with the external environment to survive and thrive under changing seasons. Besides seasonal growth adaptation, dormancy and sprouting are critical factors determining crop yield and market supply as various geophytes also serve as major food, floriculture, and ornamental crops. Dormancy in such crops decides crop availability in the market, as most of such crops are consumed during the dormant stage. On the other hand, uniform/maximal sprouting is crucial for maximum yield. Thus, dormancy and sprouting regulation have great economic importance. Dormancy-sprouting cycles in geophytes are regulated by genetic, exogenous (environmental), and endogenous (genetic, metabolic and hormonal, etc.) factors. Comparatively, the temperature is more dominant in regulating dormancy and sprouting in geophytes, unlike aboveground tissues, where both photoperiod and temperature control are involved. Despite huge economic importance, studies concerning the regulation of dormancy and sprouting are scarce in the majority of geophytes. To date, only a few molecular factors involved in the process have been suggested. Recently, omics studies on molecular and metabolic factors involved in dormancy and growth regulations of underground vegetative tissues have provided more insight into the mechanism. Here, we discuss current knowledge of the environmental and molecular regulation and control of dormancy and sprouting in geophytes and discuss challenges/questions that need to be addressed in the future for crop improvement.

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Regulating bulb dormancy release and flowering in lily through chemical modulation of intercellular communication

Cited by 3 publications

References 42 publications

Distributing Plant Developmental Regulatory Proteins via Plasmodesmata

Distributing Plant Developmental Regulatory Proteins via Plasmodesmata

Metabolic and Functional Interactions of H2S and Sucrose in Maize Thermotolerance through Redox Homeodynamics

Emerging into the world: regulation and control of dormancy and sprouting in geophytes

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