Role of nitric oxide in seed biology and seed production: A review

Nitric oxide (NO) is an important signalling molecule employed by plants to control many physiological aspects. This review summarizes that crosstalk between NO/H2O2/Ca2+ signalling pathways that drive pollen tube for sexual reproduction in flowering plants. NO is produced in seeds by both enzymatic...

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Bibliographic Details
Published in:Journal of applied and natural science 2020, Vol.12 (3), p.277-287
Main Authors: Venkatesan, S., Masilamani, P., Janaki, P., Eevera, T., Sundareswaran, S., Rajkumar, P.
Format: Article
Language:English
Subjects:
Abiotic stress
Abscisic acid
Antioxidants
Calcium ions
Calcium signalling
Crop damage
Crosstalk
Damage tolerance
Developmental stages
Dormancy
Flowering
Flowering plants
Germination
Gibberellic acid
Growth regulators
Hormones
Hydrogen peroxide
Mode of action
Nitric oxide
Oxygen
Physiology
Plant growth
Plant hormones
Plants (botany)
Pollen
Pollen tubes
Reactive oxygen species
Reproduction (biology)
Seed germination
Seeds
Sexual reproduction
Signal transduction
Signaling
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Summary:Nitric oxide (NO) is an important signalling molecule employed by plants to control many physiological aspects. This review summarizes that crosstalk between NO/H2O2/Ca2+ signalling pathways that drive pollen tube for sexual reproduction in flowering plants. NO is produced in seeds by both enzymatic and non-enzymatic sources that control many physiological aspects of seeds. The interplay of NO and Reactive oxygen species are likely important players in hormonal crosstalk controlling seed germination and dormancy. Mechanism of seed germination and dormancy is mainly regulated by plant hormones like Abscisic acid (ABA) and Gibberellic acid (GA). Based on mode of action of NO with reference to triggering the germination of crop seeds under abiotic stress condition it is infer that there is a linkage between NO and plant growth regulator production. NO cross-talk with reactive oxygen species (ROS) during abiotic stress condition, modulate the light and hormone depended developmental process in the early stage of plant development. NO action to enhancing abiotic stress tolerance by improving antioxidant enzymes and protection against oxidative damage in many crops are discussed in detail.
ISSN:0974-9411
2231-5209
DOI:10.31018/jans.v12i3.2290