Journal ArticleDOI
Seed priming: state of the art and new perspectives.
Stefania Paparella,Susana de Sousa Araújo,Graziano Rossi,Malaka M. Wijayasinghe,Daniela Carbonera,Alma Balestrazzi +5 more
TLDR
The review provides an overview of priming technology, describing the range of physical–chemical and biological treatments currently available and highlighting the need for novel ideas and cutting-edge investigations to be brought into this technological sector of agri-seed industry.Abstract:
Priming applied to commercial seed lots is widely used by seed technologists to enhance seed vigour in terms of germination potential and increased stress tolerance. Priming can be also valuable to seed bank operators who need improved protocols of ex situ conservation of germplasm collections (crop and native species). Depending on plant species, seed morphology and physiology, different priming treatments can be applied, all of them triggering the so-called ‘pre-germinative metabolism’. This physiological process takes place during early seed imbibition and includes the seed repair response (activation of DNA repair pathways and antioxidant mechanisms), essential to preserve genome integrity, ensuring proper germination and seedling development. The review provides an overview of priming technology, describing the range of physical–chemical and biological treatments currently available. Optimised priming protocols can be designed using the ‘hydrotime concept’ analysis which provides the theoretical bases for assessing the relationship between water potential and germination rate. Despite the efforts so far reported to further improve seed priming, novel ideas and cutting-edge investigations need to be brought into this technological sector of agri-seed industry. Multidisciplinary translational research combining digital, bioinformatic and molecular tools will significantly contribute to expand the range of priming applications to other relevant commercial sectors, e.g. the native seed market.read more
Citations
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Journal ArticleDOI
Zinc and iron oxide nanoparticles improved the plant growth and reduced the oxidative stress and cadmium concentration in wheat.
Muhammad Rizwan,Shafaqat Ali,Basharat Ali,Muhammad Adrees,Muhammad Arshad,Afzal Hussain,Muhammad Zia ur Rehman,Aisha A. Waris +7 more
TL;DR: The results depicted that NPs positively affected the photosynthesis of wheat as compared to the control, suggesting that the NPs play a major role in the increase in biomass, nutrients and decrease in Cd toxicity in wheat.
Journal ArticleDOI
Seed vigour and crop establishment: extending performance beyond adaptation
TL;DR: How some seed characteristics that serve as adaptive responses to the natural environment are not suitable for agriculture are discussed and ways in which basic plant science could be applied to enhance seed performance in crop production are discussed.
Journal ArticleDOI
Seed priming to alleviate salinity stress in germinating seeds
TL;DR: The aim of this paper is to review the recent literature on the response of plants to seed priming under salinity stress, and the mechanism of the effect of salinity on seed germination is discussed and the Seed priming process is summarized.
Iconography : Seed longevity: Survival and maintenance of high germination ability of dry seeds
Loïc Rajjou,Isabelle Debeaujon +1 more
TL;DR: In this paper, a model of the seed system is proposed to study longevity and aging in the context of plant propagation and plant biodiversity conservation, which is a major challenge for the conservation of plant biodiversity and for crop success.
Journal ArticleDOI
Different Modes of Hydrogen Peroxide Action During Seed Germination.
TL;DR: How seed priming/conditioning affects the integrative role of hydrogen peroxide in seed germination and aging is outlined and the detrimental effects of H2O2 on seed biology is focused on.
References
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Redox homeostasis and antioxidant signaling: a metabolic interface between stress perception and physiological responses.
Christine H. Foyer,Graham Noctor +1 more
TL;DR: Growing evidence suggests a model for redox homeostasis in which the reactive oxygen species (ROS)–antioxidant interaction acts as a metabolic interface for signals derived from metabolism and from the environment.
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The Osmotic Potential of Polyethylene Glycol 6000
TL;DR: Osmotic potential (psi(s)) of aqueous solutions of polyethylene glycol 6000 (PEG-6000) was curvilinearly related to concentration and increased linearly with temperature.
Journal ArticleDOI
Oxidative Modifications to Cellular Components in Plants
TL;DR: The fate of the modified components, the energetic costs to the cell of replacing such components, as well as strategies to minimize transfer of oxidatively damaged components to the next generation are considered.
Journal Article
Regulation of proline biosynthesis, degradation, uptake and transport in higher plants: Its implications in plant growth and abiotic stress tolerance
TL;DR: The genes governing the proline biosynthetic pathway, its degradation and regulation are summarized and an account on transgenics raised so far to engineer the overproduction of osmolyte proline is provided.
Journal ArticleDOI
The endophytic fungus Piriformospora indica reprograms barley to salt-stress tolerance, disease resistance, and higher yield
Frank Waller,Beate Achatz,Beate Achatz,Helmut Baltruschat,József Fodor,Katja Becker,Marina Fischer,Tobias Heier,Ralph Hückelhoven,Christina Neumann,Diter von Wettstein,Philipp Franken,Karl-Heinz Kogel +12 more
TL;DR: The potential of Piriformospora indica to induce resistance to fungal diseases and tolerance to salt stress in the monocotyledonous plant barley is reported on.