Subtopic Deep Dive
Plant Growth Regulators Flowering
Research Guide
What is Plant Growth Regulators Flowering?
Plant growth regulators (PGRs) such as gibberellins, cytokinins, and abscisic acid control flowering induction and development in plants through hormonal signaling pathways.
Researchers apply PGRs like paclobutrazol to modify hormonal balance for yield enhancement and flowering timing (Desta and Amare, 2021, 291 citations). Floral initiation genes contribute to inflorescence architecture across dicotyledonous species (Benlloch et al., 2007, 248 citations). MicroRNAs regulate flowering time, as shown in gloxinia via miR159 manipulation (Li et al., 2013, 98 citations).
Why It Matters
PGRs enable precise flowering control in horticulture, boosting commercial crop yields; paclobutrazol applications increase productivity in various crops (Desta and Amare, 2021). In orchids, environmental physiology combined with PGRs optimizes flowering for global floriculture markets in China, Thailand, and the US (López and Runkle, 2005). miRNAs offer genetic tools for ornamental plants like gloxinia, accelerating breeding programs (Li et al., 2013). Abscisic acid derivatives like abscisin II interact with other hormones to regulate germination and senescence, impacting postharvest quality (Aspinall et al., 1967).
Key Research Challenges
Hormonal Pathway Interactions
Complex interactions between gibberellins, cytokinins, and abscisic acid complicate precise flowering control (Desta and Amare, 2021). Abscisin II shows variable efficacy with other regulators in germination and growth inhibition (Aspinall et al., 1967). Dissecting these requires multi-omics integration.
Species-Specific Responses
PGR effects differ across species, as floral initiation genes vary in dicots and ornamentals (Benlloch et al., 2007). Gloxinia miR159 manipulation succeeds but fails to generalize (Li et al., 2013). Horticultural application demands tailored protocols.
Off-Target Growth Effects
Paclobutrazol inhibits growth alongside promoting flowering, risking yield trade-offs (Desta and Amare, 2021). Orchid somatic embryogenesis with PGRs achieves regeneration but alters architecture (Chen and Chang, 2006). Balancing targets remains unresolved.
Essential Papers
Paclobutrazol as a plant growth regulator
Bizuayehu Desta, Getachew Amare · 2021 · Chemical and Biological Technologies in Agriculture · 291 citations
Abstract Plant growth regulators are chemical substances which govern all the factors of development and growth within plants. The application of plant growth regulators to crops modifies hormonal ...
Floral Initiation and Inflorescence Architecture: A Comparative View
Reyes Benlloch, Ana Berbel, Antonio Serrano-Mislata et al. · 2007 · Annals of Botany · 248 citations
In this review we aim to present a summarized view on what is known about floral initiation genes in different plants, particularly dicotyledonous species, and aim to emphasize their contribution t...
Floral induction and flower formation—the role and potential applications of mi<scp>RNA</scp>s
Yiguo Hong, Stephen Jackson · 2015 · Plant Biotechnology Journal · 141 citations
Summary The multiple regulatory pathways controlling flowering and flower development are varied and complex, and they require tight control of gene expression and protein levels. Micro RNA s (mi R...
Direct somatic embryogenesis and plant regeneration from leaf explants of Phalaenopsis amabilis
Jen‐Tsung Chen, Wei‐Chin Chang · 2006 · Biologia Plantarum · 119 citations
Leaf explants of Phalaenopsis amabilis var. formosa formed clusters of somatic embryos directly from epidermal cells without an intervening callus within 20 - 30 d when cultured on 1/2-strength mod...
Flowering time control in ornamental gloxinia (Sinningia speciosa) by manipulation of miR159 expression
Xiaoyan Li, Hongwu Bian, Dafeng Song et al. · 2013 · Annals of Botany · 98 citations
BACKGROUND AND AIMS: Gloxinia (Sinningia speciosa) is a popular commercial plant for its attractive and colourful flowers. However, the genetic mechanism of flowering time regulation in gloxinia is...
Abscisin II and , some. Hormone-Regulated Plant Responses
D Aspinall, LG Paleg, F. A. Addicott · 1967 · Australian Journal of Biological Sciences · 98 citations
The aotivity of (±)-absoisin II' [(±)AbII] and its interaction with a number of plant growth regulators in the oontrol of lettuce germination, lettuoe hypoootyl and radiole elongation, ououmber see...
Physiological, Ecological, and Biochemical Implications in Tomato Plants of Two Plant Biostimulants: Arbuscular Mycorrhizal Fungi and Seaweed Extract
Mario Felipe González-González, Héctor Ocampo-Álvarez, Fernando Santacruz‐Ruvalcaba et al. · 2020 · Frontiers in Plant Science · 92 citations
The worldwide use of plant biostimulants (PBs) represents an environmentally friendly tool to increase crop yield and productivity. PBs include different substances, compounds, and growth-promoting...
Reading Guide
Foundational Papers
Start with Benlloch et al. (2007, 248 citations) for floral initiation genes across species; Aspinall et al. (1967, 98 citations) for abscisic acid interactions; López and Runkle (2005, 65 citations) for orchid physiology applications.
Recent Advances
Study Desta and Amare (2021, 291 citations) on paclobutrazol; Li et al. (2013, 98 citations) on miR159 in gloxinia; González-González et al. (2020, 92 citations) on biostimulants.
Core Methods
Core techniques: paclobutrazol sprays (Desta and Amare, 2021); miRNA manipulation via Agrobacterium (Li et al., 2013); half-strength MS media with cytokinins for embryogenesis (Chen and Chang, 2006).
How PapersFlow Helps You Research Plant Growth Regulators Flowering
Discover & Search
Research Agent uses searchPapers and exaSearch to find PGR papers like 'Paclobutrazol as a plant growth regulator' (Desta and Amare, 2021), then citationGraph reveals connections to abscisic acid studies (Aspinall et al., 1967) and findSimilarPapers uncovers miRNA applications in ornamentals.
Analyze & Verify
Analysis Agent applies readPaperContent to extract hormonal dosages from López and Runkle (2005), verifies claims with CoVe against 250M+ OpenAlex papers, and runs PythonAnalysis for dose-response curves using NumPy on extracted data; GRADE scores evidence strength for PGR efficacy in orchids.
Synthesize & Write
Synthesis Agent detects gaps in species-specific PGR responses via contradiction flagging across Benlloch et al. (2007) and Li et al. (2013), while Writing Agent uses latexEditText, latexSyncCitations, and latexCompile to draft reviews with synced refs; exportMermaid visualizes signaling pathways.
Use Cases
"Analyze paclobutrazol dosage effects on orchid flowering from recent papers"
Research Agent → searchPapers → Analysis Agent → runPythonAnalysis (pandas plots dose-responses from Desta and Amare 2021) → matplotlib graph of yield vs. concentration.
"Write LaTeX review on miRNA regulation of flowering time in gloxinia"
Synthesis Agent → gap detection → Writing Agent → latexEditText + latexSyncCitations (Li et al. 2013) + latexCompile → formatted PDF with cited pathways.
"Find GitHub code for modeling PGR hormonal interactions"
Research Agent → paperExtractUrls (López and Runkle 2005) → Code Discovery → paperFindGithubRepo → githubRepoInspect → Python simulation scripts for gibberellin signaling.
Automated Workflows
Deep Research workflow scans 50+ PGR papers via searchPapers, structures reports on flowering induction with GRADE grading (e.g., Benlloch et al., 2007). DeepScan applies 7-step CoVe to verify abscisic acid claims (Aspinall et al., 1967). Theorizer generates hypotheses on miR159-PGR synergies from Li et al. (2013).
Frequently Asked Questions
What defines plant growth regulators in flowering?
PGRs like gibberellins, cytokinins, and abscisic acid govern flowering via hormonal balance (Desta and Amare, 2021).
What are key methods for PGR flowering research?
Methods include foliar application of paclobutrazol, miRNA overexpression (Li et al., 2013), and somatic embryogenesis on MS media with cytokinins (Chen and Chang, 2006).
What are foundational papers?
Benlloch et al. (2007, 248 citations) on floral genes; Chen and Chang (2006, 119 citations) on orchid regeneration; Aspinall et al. (1967, 98 citations) on abscisin II.
What open problems exist?
Challenges include predicting species-specific PGR responses and minimizing off-target growth inhibition (Desta and Amare, 2021; Benlloch et al., 2007).
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