ArticleAoB PLANTS2012
Effect of external stress on density and size of glandular trichomes in full-grown Artemisia annua, the source of anti-malarial artemisinin.
Article in AoB PLANTS, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 44 citations in OpenAlex.
- Effects of Corm Treatment with Cold Plasma and Electromagnetic Field on Growth and Production of Saffron Metabolites inInternational journal of molecular sciences · 2024Article
- Unveiling physiological responses and modulated accumulation patterns of specialized metabolites inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
- Volatile Organic Compound Composition and Glandular Trichome Characteristics of In Vitro PropagatedPlants (Basel, Switzerland) · 2022Article
- Use of metabolomics data analysis to identify fruit quality markers enhanced by the application of an aminopolysaccharide.RSC advances · 2021Article
- Review
- Histochemical assays of secretory trichomes and the structure and content of mineral nutrients in Rubus idaeus L. leaves.Protoplasma · 2020Article
- The adaptation strategies of Herpetospermum pedunculosum (Ser.) Baill at altitude gradient of the Tibetan plateau by physiological and metabolomic methods.BMC genomics · 2019Article
- Production of Plant Secondary Metabolites: Examples, Tips and Suggestions for Biotechnologists.Genes · 2018Review
- Effects of Salt Stress on Plant Growth, Antioxidant Capacity, Glandular Trichome Density, and Volatile Exudates of Schizonepeta tenuifolia Briq.International journal of molecular sciences · 2018Article
- Overexpression ofFrontiers in plant science · 2018Article
- A Review of Biotechnological Artemisinin Production in Plants.Frontiers in plant science · 2017Review
- RNAi down-regulation of cinnamate-4-hydroxylase increases artemisinin biosynthesis in Artemisia annua.Scientific reports · 2016Article
- Expression of β-glucosidase increases trichome density and artemisinin content in transgenic Artemisia annua plants.Plant biotechnology journal · 2016Article
- Artemisinin production and precursor ratio in full grown Artemisia annua L. plants subjected to external stress.Planta · 2013Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsGlandular trichomes (GT) of Artemisia annua produce valuable compounds for pharmaceutical and industrial uses, most notably the anti-malarial artemisinin. Our aim was to find out whether the density, number and size of GT can be manipulated to advantage by environmental stress. A range of external stress treatments, including stress response regulators, was therefore given to fully grown plants under field and greenhouse conditions. METHODOLOGY: In a field experiment (Ex1), seed-grown plants were subjected to chemical or physical stress and plants analysed after 5 weeks. In a greenhouse experiment (Ex2), three groups of clonally derived plants were stressed at weekly intervals for 5 weeks. Stress treatments included sandblasting, leaf cutting and spraying with jasmonic acid, salicylic acid, chitosan oligosaccharide (COS), H(2)O(2) (HP) and NaCl (SC)at different concentrations. Leaves from an upper and a lower position on the plants were analysed by fluorescence microscopy to determine the density and size of GT. PRINCIPAL
resultsDensities of GT on upper leaves of full-grown A. annua plants generally showed no response to external stress and only plants from one clone of Ex2 supported the hypothesis that increased density of GT was inducible in upper leaves by stress (significant for SC, HP and COS). The density of GT on lower leaves was not affected by stress in any experiment. Glandular trichomes were significantly smaller on the lower leaves in response to stress in Ex2, and a similar non-significant trend was observed in Ex1.
conclusionsThe results indicate a dynamic system in which stress treatments of large A. annua plants had a minor promoting effect on the initiation of GT in developing leaves, and a maturing effect of GT later in the lifetime of the individual GT. The hypothesis that applying stress can induce larger GT or more numerous GT was rejected.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.