Parameters of Filament Elongation in Ipomoea Nil (Convolvulaceae)

Koning, Ross E.; Raab, Mandy M.

doi:10.1002/j.1537-2197.1987.tb08671.x

Cited by 13 publications

(3 citation statements)

References 27 publications

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“…Research has shown that high-temperature treatments reduce ethylene production from filaments alone and from filaments with anthers attached (Biddington and Robinson 1993). The ethylene precursor ACC inhibited filament growth in Fuchsia hybrida at 32 ∘ C (Jones and Koning 1986) and of Ipomoea nil at 30 ∘ C (Koning and Raab 1987). Compared with the control, the high temperature treatment reduced the endogenous hormone content of IAA in rapeseed plants (Zhou and Leul 1999).…”

Section: Discussionmentioning

confidence: 99%

Systematic identification and analysis of heat‐stress‐responsive lncRNAs, circRNAs and miRNAs with associated co‐expression and ceRNA networks in cucumber (Cucumis sativus L.)

Guo

Wang

et al. 2019

Physiologia Plantarum

108

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Researchers have shown that long non‐coding RNAs (lncRNAs) and circular RNAs (circRNAs) act as competitive endogenous RNAs (ceRNAs) and are mutually regulated by competition for binding to common microRNA response elements (MREs). However, a comprehensive identification and analysis of lncRNAs and circRNAs as ceRNAs have not yet been completed in cucumber (Cucumis sativus L.) exposed to high‐temperature stress. In our study, 32 663 coding transcripts, 2085 lncRNAs, 2477 circRNAs and 348 differentially expressed miRNAs were identified using RNA sequencing. In addition, six heat‐stress‐responsive miRNAs (five known and one novel miRNAs) and eight lncRNAs were selected for qPCR to confirm their expression profiles. By analyzing the cis effects of lncRNAs, we constructed a lncRNA‐mRNA co‐expression network. Based on the results, the corresponding lncRNAs play a regulatory role in the stress response in cucumber plants. In our study, the PatMatch software was used to predict the potential function of lncRNAs and circRNAs as ceRNAs. A total of 18 lncRNAs and seven circRNAs were predicted to bind to 114 differentially expressed miRNAs and compete with 359 mRNAs for miRNA binding sites. These mRNAs are predicted to be involved in various pathways, such as plant hormone signal transduction, plant–pathogen interaction and glutathione metabolism. Among them, TCONS_00031790, TCONS_00014332, TCONS_00014717, TCONS_00005674, novel_circ_001543 and novel_circ_000876 may interact with miR9748 by plant hormone signal transduction pathways in response to high‐temperature stress. Moreover, indole‐3‐acetic acid (IAA) and 1‐aminocyclopropane‐l‐carboxylic acid (ACC) levels decreased in the high‐temperature treatment group, indicating that IAA and ethylene signaling might be involved in response to high‐temperature stress. In this study, we conducted a full transcriptomic analysis in response to high‐temperature stress in cucumber and, for the first time, integrated the potential ceRNA functions of lncRNAs/circRNAs. The results provide a basis for studying the potential functions of lncRNAs/circRNAs in response to high‐temperature stress.

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Section: Discussionmentioning

confidence: 99%

Systematic identification and analysis of heat‐stress‐responsive lncRNAs, circRNAs and miRNAs with associated co‐expression and ceRNA networks in cucumber (Cucumis sativus L.)

Guo

Wang

et al. 2019

Physiologia Plantarum

108

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“…see Métraux 1988, Katsumi andIshida 1991). Also, GAs were shown to promote stamen filament growth in many, but not all, species (Greyson and Tepfer 1967, Koevenig 1973, Koning and Raab 1987. The similarity in GA and low temperature response suggests that the possible changes in the MS33 product caused by the latter may promote GA biosynthesis or GA signal transduction pathway, which in turn triggers cell elongation.…”

Section: Effects Of Low Temperature and Gibberellic Acid On Filament mentioning

confidence: 99%

Role of plant growth substances in MS33‐controlled stamen filament growth in Arabidopsis

Fei

Sawhney

1999

Physiologia Plantarum

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The rapid growth of stamen filaments just before flower anthesis in Arabidopsis thaliana does not occur in the male sterile33 (ms33, formerly known as msZ) mutant. ms33 filaments were approximately 40% shorter than the wild type (WT), and there was corresponding reduction in the epidermal cell length of filaments. This suggests that MS33 controls the final cell‐elongation phase of filament growth. Both low temperatures and gibberellic acid (GA3) restored filament and cell growth in intact ms33 flowers, but these treatments only had a small promotive effect on WT filaments. Decapitation experiments involving the removal of the anther had the opposite effect on WT and ms33 filaments; growth was inhibited in WT, but was increased in ms33 filaments. In young stamen primordia cultured in vitro, filament growth was less in WT, but more in ms33, than in respective in vivo produced filaments. Plant growth substances (PGSs), GA3 and indole‐3‐acetic acid (IAA) were promotive, zeatin had no effect, and abscisic acid (ABA) and ethrel inhibited filament growth in both intact and decapitated WT and ms33 filaments. Together these observations suggest that MS33 is activated immediately before anthesis and that the MS33 product either regulates temporal biosynthesis of gibberellins (GAs) and/or IAA or makes the filament tissue sensitive to these PGSs, which in turn trigger cell elongation and filament growth. The data also suggest that ms33 mutant anthers contain a relatively high ratio of growth inhibitors to promoters, which inhibits epidermal cell elongation and filament growth.

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“…Endogenous plant growth substances (PGSs), e.g., gibberellins (GAs), ethylene, and indole-3-acetic acid have been shown to influence the growth of stamens, in particular stamen filaments, and petals in various species (Schaeverbeke 1965;Greyson and Tepfer 1967;Koevenig 1973;Koning and Raab 1987;Kiss and Koning 1990). These studies suggest that a multifactoral control mechanism is responsible for normal stamen development.…”

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confidence: 98%

Induction of "filamentous structures" in wild type Antirrhinum majus flowers by benzylaminopurine

Blahut-Beatty¹,

Bonham‐Smith²,

Sawhney³

1998

Can. J. Bot.

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The cytokinin, N 6 -benzylaminopurine (BAP), when applied to young inflorescences of wild-type Antirrhinum majus L., resulted in the formation of chimeric "filamentous structures" in the dorsal region of the third whorl, the position where a stamen primordium is suppressed in wild-type flowers. In addition, BAP induced similar filamentous structures in between the first and second whorls, and this response was concentration dependent. The basal region of the filamentous structures was similar to the filament of a stamen, while the distal portion resembled a petal. These observations suggest that cytokinins may be site-specific factors involved in the regulation of floral organ identity genes or genes that control floral symmetry, i.e., the CYCLOIDEA gene.Résumé : Lorsqu'on applique la cytokinine, N 6 -benzylaminopurine (BAP), sur de jeunes inflorescences du type sauvage de l'Antirrhinum majus, il se forme une « structure filamenteuse » chimérique dans la région dorsale du troisième verticille, la position où un primordium d'étamine supprimé se retrouve chez les fleurs du type sauvage. De plus, la BAP induit une structure filamenteuse similaire entre le premier et le second verticilles, et cette réaction dépend de la concentration. La région basale de la structure filamenteuse était similaire au filament de l'étamine alors que la portion distale est pétaloïde. Ces observations suggèrent que les cytokinines peuvent être des facteurs spécifiques aux sites impliqués dans la modulation des gènes impliqués dans l'identité des organes floraux, ou des gènes qui contrôlent la symétrie florale, i.e., le gène CYCLOIDEA.

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Parameters of Filament Elongation in Ipomoea Nil (Convolvulaceae)

Cited by 13 publications

References 27 publications

Systematic identification and analysis of heat‐stress‐responsive lncRNAs, circRNAs and miRNAs with associated co‐expression and ceRNA networks in cucumber (Cucumis sativus L.)

Systematic identification and analysis of heat‐stress‐responsive lncRNAs, circRNAs and miRNAs with associated co‐expression and ceRNA networks in cucumber (Cucumis sativus L.)

Role of plant growth substances in MS33‐controlled stamen filament growth in Arabidopsis

Induction of "filamentous structures" in wild type Antirrhinum majus flowers by benzylaminopurine

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