Effect of desiccation and salinity stress on seed germination and initial plant growth of Cucumis melo

Sohrabikertabad, Sima; Ghanbari, Ali; Mohassel, Mohamad H.R.; Mahalati, M Nassiri; Gherekhloo, Javid

doi:10.1590/s0100-83582013000400009

Cited by 19 publications

(10 citation statements)

References 26 publications

(13 reference statements)

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“…Halophytes (solid lines): Suaeda japonica (Yokoishi and Tanimoto, 1994), Chloris virgata (Zhang et al, 2012), Kalidium capsicum (Tobe et al, 2000), Suaeda physophora (Song et al, 2005), Haloxylon persicum , Haloxylon ammodendron , Suaeda physophora (Song et al, 2005), and Suaeda salsa (Song et al, 2008). Non-halophytes (dotted lines): Cyperus conglomeratus (Keblawy et al, 2011), Oryza sativa (Jiang et al, 2013), Glycine max (Neves et al, 2005), Nigella sativa (Papastylianou et al, 2017), Cucumis melo (Sohrabikertabad et al, 2013), Impatiens balsamina (Jiang et al, 2014), and Arabidopsis thaliana (Wilson et al, 2014).…”

Section: Early Germination Of Halophytes Under Saline Conditionsmentioning

confidence: 99%

Reproductive Physiology of Halophytes: Current Standing

et al. 2019

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Background: Halophytes possess efficient salt-tolerance mechanisms and can complete their life cycles in naturally saline soils with NaCl contents exceeding 200 mM. While a significant progress have been made in recent decades elucidating underlying salt-tolerance mechanisms, these studies have been mostly confined to the vegetative growth stage. At the same time, the capacity to generate high-quality seeds and to survive early developmental stages under saline conditions, are both critically important for plants. Halophytes perform well in both regards, whereas non-halophytes cannot normally complete their life cycles under saline conditions.Scope: Research into the effects of salinity on plant reproductive biology has gained momentum in recent years. However, it remains unclear whether the reproductive biology of halophytes differs from that of non-halophytes, and whether their reproductive processes benefit, like their vegetative growth, from the presence of salt in the rhizosphere. Here, we summarize current knowledge of the mechanisms underlying the superior reproductive biology of halophytes, focusing on critical aspects including control of flowering time, changes in plant hormonal status and their impact on anther and pollen development and viability, plant carbohydrate status and seed formation, mechanisms behind the early germination of halophyte seeds, and the role of seed polymorphism.Conclusion: Salt has beneficial effects on halophyte reproductive growth that include late flowering, increased flower numbers and pollen vitality, and high seed yield. This improved performance is due to optimal nutrition during vegetative growth, alterations in plant hormonal status, and regulation of flowering genes. In addition, the seeds of halophytes harvested under saline conditions show higher salt tolerance than those obtained under non-saline condition, largely due to increased osmolyte accumulation, more optimal hormonal composition (e.g., high gibberellic acid and low abcisic acid content) and, in some species, seed dimorphism. In the near future, identifying key genes involved in halophyte reproductive physiology and using them to transform crops could be a promising approach to developing saline agriculture.

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Section: Early Germination Of Halophytes Under Saline Conditionsmentioning

confidence: 99%

Reproductive Physiology of Halophytes: Current Standing

et al. 2019

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“…They were also different from the temperatures used by Sohrabikertabad et al . (38/35°C) [ 3 ], who also reported that different temperatures had an effect on germination at certain salt stress levels. Also, it is not known if the seedlings can establish and grow under saline conditions.…”

Section: Resultsmentioning

confidence: 99%

Influence of environmental factors on Cucumis melo L. var. agrestis Naud. seed germination and seedling emergence

Zhang

et al. 2017

PLoS ONE

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Cucumis melo L. var. agrestis Naud. (field muskmelon) is an annual invasive weed in many parts of Asia. However, there is very little available information about the germination and emergence of this species. Therefore, laboratory experiments were conducted to evaluate the effects of light, temperature, salt stress, osmotic stress, pH, and depth of planting on field muskmelon germination and seedling emergence. Light had no effect on seed germination, and the seeds germinated at a wide range of temperatures. More than 90% of the seeds germinated at constant temperatures between 20°C and 35°C, and fluctuating day/night temperatures between 15/25 and 30/40°C. The seeds were tolerant to salinity as germination occurred up to the 200 mM NaCl treatment. However, the seeds were sensitive to osmotic stress as seed germination was completely inhibited at –0.6 MPa. The seeds germinated over a pH range of 4 to 10, which suggested that pH was not a limiting factor for germination. Seedling emergence was greatest (97.86%) when the seeds were planted on the soil surface, but emergence declined as the burial depth increased. Information from this study can be used to predict future infestations in China and help develop strategies to manage this species.

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“…When plants are submitted to saline stress, some ions reach toxic concentrations and may interfere in cellular metabolic processes, therefore reducing or hindering plant growth [30]. In some studies, high salt concentrations resulted in reduction of seedling vigor, inhibiting initial growth [4,5].…”

Section: Root (A) Shoot (B) and Seedling (C) Lengths Of Two Varietiementioning

confidence: 99%

“…All stages of plant development are affected by salinity and most crops present greater sensitivity during germination [3]. In the literature there are several studies about the effect of salinity on melon's seed germination [4,5,6]. These authors verified that melon seeds are able to germinate under certain salinity level, but as the salinity increases there is a reduction on the germination rate and in the seedlings development.…”

Section: Introductionmentioning

confidence: 99%

Effect of Salicylic Acid on the Physiological Quality of Salt-Stressed Cucumis melo Seeds

Nóbrega

Figueiredo

Sousa

et al. 2018

JEAI

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Aim:The aim of this study was to evaluate the physiological quality of seeds of two melon varieties (Cucumis melo) in response to saline stress and salicylic acid treatment. Study Design: The experimental design was a completely randomized design with five different water salinities and five doses of salicylic acid, with four replicates of 50 seeds. Place and Duration of Study: The experiment was carried out in the Laboratory of Seed Analysis, located in the Center of Agricultural Sciences of the Federal University of Paraíba, Areia-PB, Brazil. Methodology: The experiment was conducted with two varieties of melon (Cantalupensis and Eldorado 300). Creole melon seeds (cucumber melon -Cantalupensis) were extracted from Original Research Article

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Effect of desiccation and salinity stress on seed germination and initial plant growth of Cucumis melo

Cited by 19 publications

References 26 publications

Reproductive Physiology of Halophytes: Current Standing

Reproductive Physiology of Halophytes: Current Standing

Influence of environmental factors on Cucumis melo L. var. agrestis Naud. seed germination and seedling emergence

Effect of Salicylic Acid on the Physiological Quality of Salt-Stressed Cucumis melo Seeds

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