Photoperiod and plant growth regulator combinations influence growth and physiological responses in Pelargonium sidoides DC.

Moyo, Mack; Koetle, M.J.; Staden, J. Van

doi:10.1007/s11627-014-9594-4

Cited by 12 publications

(3 citation statements)

References 21 publications

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“…Depending on the day length or amount of light required for flowering, medicinal plants are classified into long-day, short-day, and intermediate-day plants (Huang and Liu, 2015). Different plant species adapt to changes in the photoperiod through various physiological modifications, one of which is by altering the accumulation of SMs (Moyo et al, 2014;Zahir et al, 2014;Liebelt et al, 2019).…”

Section: Photoperiodmentioning

confidence: 99%

Effects of Light on Secondary Metabolite Biosynthesis in Medicinal Plants

Zhang

Zou

et al. 2021

Front. Plant Sci.

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Secondary metabolites (SMs) found in medicinal plants are one of main sources of drugs, cosmetics, and health products. With the increase in demand for these bioactive compounds, improving the content and yield of SMs in medicinal plants has become increasingly important. The content and distribution of SMs in medicinal plants are closely related to environmental factors, especially light. In recent years, artificial light sources have been used in controlled environments for the production and conservation of medicinal germplasm. Therefore, it is essential to elucidate how light affects the accumulation of SMs in different plant species. Here, we systematically summarize recent advances in our understanding of the regulatory roles of light quality, light intensity, and photoperiod in the biosynthesis of three main types of SMs (polyphenols, alkaloids, and terpenoids), and the underlying mechanisms. This article provides a detailed overview of the role of light signaling pathways in SM biosynthesis, which will further promote the application of artificial light sources in medicinal plant production.

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Section: Photoperiodmentioning

confidence: 99%

Effects of Light on Secondary Metabolite Biosynthesis in Medicinal Plants

Zhang

Zou

et al. 2021

Front. Plant Sci.

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“…However, each variable is influenced by different unknown and uncontrolled factors, therefore, requiring specific CV range classification in order to infer experimental precision (Werner et al 2012). This shows that, despite controlling cultivation conditions, data commonly needs transformation in order to follow the normality assumption (Moyo et al 2014), yet obtaining high CV values. Sá et al (2018), while studying micro-propagation of Manihot wild species, verified CV values form 12.88% to 72.46%.…”

Section: Discussionmentioning

confidence: 93%

Effect of different temperatures for in vitro conservation of cassava (Manihot esculenta Crantz) germplasm

Santos¹,

Freitas²,

Souza³

et al. 2022

CLIUM

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The objective of the present work was to evaluate in vitro growth of cassava accessions under different temperatures to improve protocols for germplasm conservation. Acclimatized chambers were tested at 18 °C, 20 °C and 22 °C, and again at 22 °C in conservation room (control) in five accessions: Mandioca João Grande (BGM1325), Fécula Branca (BGM1632), BRS Kiriris (BGM1728), S/N (121) (BGM2004) and BRS Prata (BGM2019). After 90 days of distance, the following were evaluated: shoot height (cm), number of sprouts and microcuttings, number of green and senescent leaves, fresh and dry weight of shoots and roots (g). The experiment was performed under a completely randomized design in factorial scheme 5(accessions) x 4(temperatures), with 20 replicates. All data were submitted to the F test ANOVA and evaluated by the Tukey and Scott-Knott tests at 5% probability. The control temperature promoted lower mean values for plant shoot height, with emphasis for accessions BGM1325, BGM1632 and BGM2019. In a general manner accessions BGM1325, BGM1632 and BGM2019 showed lower SH, with the first and BGM2004 outstanding with the best results for lower NSL and higher NGL.

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“…Amongst these in vitro-induced challenges, detection of hyperhydricity has received considerable success with the use of different microscopic techniques (Table 2). Considering that hyperhydricity affects several organelles in Moyo et al (2014) the cells of regenerated plants, it becomes necessary to examine the structure for detection of possible aberrations. With the use of light microscope, parameters such as surface wax topology and leaf imprints are recorded while the epidermal and stomatal cell count can be easily achieved (Correll and Weathers 2001).…”

Section: Detection Of In Vitro-induced Physiological and Anatomical Dmentioning

confidence: 99%

Insights into the multifaceted application of microscopic techniques in plant tissue culture systems

Moyo

Aremu

Staden

2015

Planta

Self Cite

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Microscopic techniques remain an integral tool which has allowed for the better understanding and manipulation of in vitro plant culture systems. The recent advancements will inevitably help to unlock the long-standing mysteries of fundamental biological mechanisms of plant cells. Beyond the classical applications in micropropagation aimed at the conservation of endangered and elite commercial genotypes, plant cell, tissue and organ cultures have become a platform for elucidating a myriad of fundamental physiological and developmental processes. In conjunction with microscopic techniques, in vitro culture technology has been at the centre of important breakthroughs in plant growth and development. Applications of microscopy and plant tissue culture have included elucidation of growth and development processes, detection of in vitro-induced physiological disorders as well as subcellular localization using fluorescent protein probes. Light and electron microscopy have been widely used in confirming the bipolarity of somatic embryos during somatic embryogenesis. The technique highlights basic anatomical, structural and histological evidence for in vitro-induced physiological disorders during plant growth and development. In this review, we discuss some significant biological insights in plant growth and development, breakthroughs and limitations of various microscopic applications and the exciting possibilities offered by emergent in vivo live imaging and fluorescent protein engineering technologies.

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Photoperiod and plant growth regulator combinations influence growth and physiological responses in Pelargonium sidoides DC.

Cited by 12 publications

References 21 publications

Effects of Light on Secondary Metabolite Biosynthesis in Medicinal Plants

Effects of Light on Secondary Metabolite Biosynthesis in Medicinal Plants

Effect of different temperatures for in vitro conservation of cassava (Manihot esculenta Crantz) germplasm

Insights into the multifaceted application of microscopic techniques in plant tissue culture systems

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