Reduced water availability improves drought tolerance of potted miniature roses: Is the ethylene pathway involved?

Andersen, Lillie; Williams, Michelle; Serek, Margrethe

doi:10.1080/14620316.2004.11511719

Cited by 13 publications

(15 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although rains at the end of the drying cycle can trigger flowering of woody species (Opler, Frankie & Baker 1976;Reich & Borchert 1982;Borchert 1983Borchert , 1994, our study is the first to associate these with changes in ethylene biosynthesis and the expression of regulatory genes. Both leaf and flower bud ethylene production decreased as plants advanced through the dry season (Figure 4), consistent with soil drying decreasing foliar ethylene production of rose and other herbaceous species (Morgan, He, De Greet & De Proft 1990) and flower bud ethylene production of coffee (Schuch et al, 1992) and rose (Andersen et al, 2004). Decreased shoot ethylene production was consistent with downregulation of the CaACO1-like gene ( Figure 2C), and the activity of ACO enzymes (Andersen et al 2004;Larrainzaret al 2014;Song et al 2016;Rickes, Klumb, Benitez, Braga & Bianchi 2019).…”

Section: Discussionsupporting

confidence: 63%

“…Both leaf and flower bud ethylene production decreased as plants advanced through the dry season (Figure 4), consistent with soil drying decreasing foliar ethylene production of rose and other herbaceous species (Morgan, He, De Greet & De Proft 1990) and flower bud ethylene production of coffee (Schuch et al, 1992) and rose (Andersen et al, 2004). Decreased shoot ethylene production was consistent with downregulation of the CaACO1-like gene ( Figure 2C), and the activity of ACO enzymes (Andersen et al 2004;Larrainzaret al 2014;Song et al 2016;Rickes, Klumb, Benitez, Braga & Bianchi 2019). Significant ABA accumulation occurs in coffee during the dry season in response to leaf water deficit (Silva et al 2018), which may limit expression of ACO genes (Cheng, Chiang, Hwang & Lin 2009;Linkies et al 2009) or ACO activity (Bailly, Corbineau & Come 1992;Linkies et al 2009;Marino et al2017).…”

Section: Discussionsupporting

confidence: 58%

“…While regulation of ethylene biosynthesis genes represents one mechanism of controlling ethylene levels in the shoot, conjugation of the precursor ACC can also be important (de Poel & Van Der Straeten 2014). Indeed, soil water deficit increased 1-malonyl-ACC concentrations in rose roots (Andersen et al 2004). Thus soil (and leaf) water deficit can alter both shoot gene expression and precursor levels, thereby regulating shoot ethylene production.…”

Section: Discussionmentioning

confidence: 97%

“…Chemical inhibition of ABA biosynthesis prevented ACC accumulation in Citrus roots in dry soil, while exogenous ABA induced ACC accumulation (Gómez-Cadenas et al 1996). In addition, decreased levels of root ACO activity (Andersen et al 2004) under water deficit may also contribute for ACC accumulation under water deficit. While further measurements of ACC levels seem necessary, root ACC accumulation during the dry season could be important in regulating plant response to re-watering.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Drought and re-watering modify ethylene production and sensitivity, and are associated with coffee anthesis

Lima

Santos

López

et al. 2020

Preprint

View full text Add to dashboard Cite

Coffee flowering requires a period of water deficit followed by rainfall to break flower bud dormancy and promote anthesis. Since drought followed by re-watering can increase shoot ethylene production, we investigated changes in root, leaf and flower bud ethylene production and expression of genes within the ethylene biosynthesis and signalling pathways and their relationship to coffee flowering. Drought decreased foliar and flower bud ethylene production without changing root ethylene production, even though all tissues likely accumulated the ethylene precursor ACC (1-aminocyclopropane-1-carboxylic acid), since ACS gene expression was maintained while ACO gene expression decreased. The ethylene receptor CaETR4-like was not differentially expressed in leaves under water deficit, but it was downregulated in roots. Re-watering restored shoot ethylene production, which seems important in promoting anthesis. 1-MCP, an ethylene action inhibitor, triggered coffee anthesis without re-watering the plants, which hitherto was considered essential to allow flowering. 1-MCP positively regulated ethylene biosynthesis genes (CaACS1-like and CaACO1-like), similar to re-watering, and downregulated CaETR4-like, suggesting that changes in ethylene levels and sensitivity are required to promote coffee anthesis. Thus, drought and re-watering-induced changes in ethylene levels and sensitivity allow coffee flowering, while the growth regulator 1-MCP can potentially regulate anthesis time and intensity.

show abstract

Section: Discussionsupporting

confidence: 63%

Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Drought and re-watering modify ethylene production and sensitivity, and are associated with coffee anthesis

Lima

Santos

López

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Reduced water availability has been used with success in acclimation of roses against drought stress. Leaves of acclimated plants maintained a higher RWC, and flowers were able to continue enzyme activity with longer lives (Andersen et al 2004). In cut roses, leaves represent the main contributor to water losses through transpiration as evidenced by the observation that 3 days are required to dehydrate flower bud at the harvesting stage down to 70% relative water content (RWC) while only 7 h are enough to reach the same result with leaves (Urban et al 1994).…”

Section: Flower Petal Water Relationsmentioning

confidence: 98%

Flower bud opening and senescence in roses (Rosa hybrida L.)

2008

View full text Add to dashboard Cite

The flower is the most significant and beautiful part of plants. Flowers are very useful organs in plant developmental phenomenon. During flower bud opening, various events takes place in a well defined sequence, representing all aspects of plant development, such as cell division, cellular differentiation, cell elongation or expansion and a wide spectrum of gene expression. The complexity of flower bud opening illustrates that various biological mechanisms are involved at different stages. Senescence represents the ultimate stage of floral development and results in wilting or abscission of whole flower or flower parts. Senescence is an active process and governed by a well defined cell death program. Once a flower bud opens, the programmed senescence of petal allows the removal of a metabolically active tissue. In leaves, this process can be reversed, but in floral tissue it cannot, indicating that a highly controlled genetic program for cell death is operating. The termination of a flower involves at least two, sometimes overlapping, mechanisms. In one, the perianth abscises before the majority of its cells initiate a cell death program. Abscission may occur before or during the mobilization of food reserves to other parts of the plant. Alternatively, the petals may be more persistent, so that cell deterioration and food remobilization occur while the petals are still part of the flower. The overall pattern of floral opening varies widely between plant genera, therefore, a number of senescence parameters have been used to group plants into somewhat arbitrary categories. Opening and senescence of rose flower is still an unsolved jigsaw in the world of floriculture industry and the mechanism behind the onset of the very early events in the sequence still remains to be elucidated. Hence, for advancing the knowledge on the pertinent aspect of bud opening and senescence the literature has been cited under this review.Keywords Abscisic acid Á Ascorbate peroxidase Á Catalase Á Ethylene Á Gibberellin Á Glutathione reductase Á Hydrogen peroxide Á Hydroxyl radical Á Lipoxygenase Á Pectin methyl esterase Á Polygalactouronase Á Peroxidase Á Relative water content Plant growths regulators Gibberellins (GAs)The role of GAs in petal growth has been demonstrated in many plants. Analysis of endogenous GAs in young petunia anthers and corolla indicated the

show abstract

Ethylene and Plant Responses to Abiotic Stress

Druege¹

2006

Ethylene Action in Plants

View full text Add to dashboard Cite

Exposure to physical, chemical or biological stresses is an intrinsic characteristic of plant life not only in the natural environment but also under more or less controlled conditions in horticultural and agricultural systems. Globalisation and concentration of plant production throughout the world, on the one hand, allows for optimizing of growth conditions, but, on the other, increasingly involves post-harvest stress during storage and transport of intermediate and final products (Çelikel and Reid 2002;Kadner and Druege 2004). According to Levitt (1980), the term stress is used for any external factor capable of inducing a potentially injurious strain in the plant. With regard to the condition of the plant, plant stress can be described as a state in which increasing demands made on a plant lead to an initial destabilization of functions, followed by adaptive responses towards normalization, which may even lead to over-compensation of functions and improved resistance (Larcher 1995). However, if the acute tolerance or adaptive capacity is overtaxed, permanent damage or death may result. Within a network of hormonal cross-talk (Gazzarrini and McCourt 2003), ethylene production and signalling are highly involved not only in stress-induced symptoms of disturbed growth, senescence or injury, but also in acclimation processes which aid plant performance and survival.

show abstract

Reduced water availability improves drought tolerance of potted miniature roses: Is the ethylene pathway involved?

Cited by 13 publications

References 38 publications

Drought and re-watering modify ethylene production and sensitivity, and are associated with coffee anthesis

Drought and re-watering modify ethylene production and sensitivity, and are associated with coffee anthesis

Flower bud opening and senescence in roses (Rosa hybrida L.)

Ethylene and Plant Responses to Abiotic Stress

Contact Info

Product

Resources

About