Statistical studies on anatomical modifications in the radicle and hypocotyl of cotton induced by NaCl

Casenave, Ester C; Degano, C.; Toselli, María E; Catan, Estela A

doi:10.4067/s0716-97601999000400008

Cited by 9 publications

(8 citation statements)

References 11 publications

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“…In this study, the best parameters to measure the salt sensitivity of P. indicus are height, number of leaves, root collar diameter, root-shoot ratio, and anatomy of the seed as these showed significant changes after salt application and will determine if the species can really survive in saline conditions. The observed parameters are similar to the studies of Fang et al (2006) for the height, Miranda et al (2014) for the number of leaves, Jimenez-Casas and Zwiazek (2014) for root collar diameter, Viégas et al (2001) for the roo-shoot ratio, and Casenave et al (1999) for the radicle growth.…”

Section: Discussionsupporting

confidence: 86%

“…Figure 3 shows that at 100 mM NaCl the cells of the radicle tissue of P. indicus f. indicus started to show damages or disruptions of cells. This was also evident in the anatomical modifications of the radicle and hypocotyl of cotton induced by NaCl where the radicle growth decreased under 100 meq L -1 and 250 meq L -1 (Casenave et al 1999). Given that there are distinguishable changes in the cell tissues of the radicle as the NaCl concentration increases, the assumption is that the ability of the radicle to become the primary root of the plant is inhibited (Koning 1994).…”

Section: Discussionmentioning

confidence: 97%

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Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus)

Manipol¹,

Tinio

Maldia

et al. 2020

Biodiversitas

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Abstract. Manipol MM, Tinio CE, Maldia LSJ, Combalicer MS. 2020. Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus). Biodiversitas 21: 5146-5154. Pterocarpus indicus Willd. forma indicus is a commonly planted species for reforestation in the Philippines regardless of the area’s condition. Since the species could survive in areas even with harsh conditions, it was hypothesized that the species may also thrive in areas having substantial amount of salt, especially during its early growth. This study assessed the morphological, physiological, and anatomical responses of seeds and seedlings of P. indicus Willd. f. indicus (Fabaceae), a native species in the Philippines to varying salt (NaCl) concentrations (0-300 mM). Based on the results, P. indicus f. indicus grew significantly in terms of height, number of leaves, leaf area, root collar diameter (RCD), root nodules, and root-shoot ratio in the control and at 100 mM NaCl. On the other hand, the growth of the species was suppressed at 300 mM NaCl. The physiological characteristics (germination, survival, and photosynthetic rates) were also high in the control compared to the NaCl treatments. As for the seed anatomical characteristics, the radicle cells remained undamaged, with high cell number and longer cells in the control, but showed damaged and reduced cell number and length at 300 mM NaCl. This indicates that P. indicus f. indicus can only tolerate moderate saline soil conditions. Hence, this result needs to be considered in reforestation efforts of the country using this species.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 97%

Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus)

Manipol¹,

Tinio

Maldia

et al. 2020

Biodiversitas

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“…But, the increase recorded under CaCl2 at 4000 mg/L was about 4% only. The results obtained in this work are consistent with Casenave et al (1999) who observed that cotton plants had smaller cortex and a decrease in the development of the xylem under higher salinity levels. Furthermore, Pimmongkol et al (2002) stated that the diameters of stems and the width of vascular bundles were decreased in rice grown under NaCl.…”

Section: Stem Structuresupporting

confidence: 92%

Interactive Effects of Certain Vitamins, Bioregulator and Yeast Extract on Sweet Pepper Stem and Leaf Anatomy Under Two Types of Salinity.

Arafa

Khafagy

Kheer

et al. 2013

Journal of Plant Production

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All salinity types at 2000 mg/L increased stem diameter due to an increase in pith diameter, cortex thickness, width of epidermis cell and vascular bundles dimensions (length as well as metaxylem vessel diameter). In addition, CaCl2 and NaCl+CaCl2 1:1 (w/w) were the most effective in this respect. In addition, high salinity level (4000 mg/L) decreased most of the studied anatomical parameters. While, the pith diameter and number of vascular bundles were decreased only under NaCl at 4000 mg/L. On the other hand, pre-soaking seeds in selected chemicals used, in most cases, showed a positive effect on the stem structure and AsA at 50 mg/L or SA at 75 mg/L was the most effective in this respect.Low level of all salinity types (2000 mg/L) increased midrib region thickness due to increasing the length of main vascular bundle. While, the highest salinity level (4000 mg/L) led to a decrease in this respect due to the decrease in length of main vascular bundle. In addition, NaCl was more effective in this respect followed by NaCl+CaCl2 (1:1). On the other hand, the leaf blade (lamina) thickness was also decreased in plants grown under NaCl at 4000 mg/L followed by NaCl+CaCl2 (1:1) due to a decrease in the thickness of palisade and spongy tissues as well as upper and lower epidermis width. Moreover, the application of chemicals used led to an increase in the thickness of midrib region as compared with untreated plants. In addition, SA (75 mg/L), AsA (50 mg/L) and α-tocopherol (100 mg/L) were more effective. In most cases, AsA at 50 mg/L or SA at 75 mg/L alleviated the harmful effect of salinity level (4000 mg/L) on midrib region and lamina thickness as well as the main vascular bundle dimensions when compared with untreated plants. Furthermore, AsA at 50 mg/L was more effective than the remaining treatments.

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“…Reducing effects of salt stress on stem diameter (Pimmongkol et al 2002), epidermis cell width and length (Curtis and Lauchli 1987), cortex zone thickness (Casenave et al 1999), vascular bundle width (Pimmongkol et al 2002), xylem width (Baum et al 2000) and trachea diameter (Bass et al 1983, Reinhardt andRost 1995) were reported previously. Moreover, some researchers (Liphschitz andWaisel 1970, Shannon et al 1994) determined that salinity increased cuticle thickness and decreased cambium thickness.…”

Section: Resultsmentioning

confidence: 61%

“…Unfortunately, there are fewer studies on the effect of salinity on stems than on leaves and roots. Casenave et al (1999) observed that cotton seedlings subjected to the higher salinity levels had a significantly smaller cortex. In addition, the same researchers reported that with an increase in salinity there was a decrease in the development of the xylem.…”

mentioning

confidence: 95%

Effects of some plant growth regulators on stem anatomy of radish seedlings grown under saline (NaCl) conditions

Çavuşoğlu¹,

Kılıç²,

Kabar³

2008

PLANT SOIL ENVIRON

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In this work, effects of gibberellic acid, 2-chloroethylphosphonic acid (ethephon), triacontanol, 24-epibrassinolide and polyamine (cadaverine, putrescine, spermidine, spermine) pretreatments on the stem anatomy of radish seedlings grown under saline conditions were studied. Salt stress decreased the stem diameter, epidermis cell size, cortex zone thickness, vascular bundle width, cambium thickness, xylem width, trachea diameter and phloem width in the seedlings non-pretreated with the growth regulators, in comparison with the control seedlings grown in distilled water medium. In addition, it slightly increased the cuticle thickness. On the other hand, many of the growth regulator pretreatments more or less stimulated the stem diameter, epidermis cell width, cortex zone thickness, vascular bundle width, xylem width, trachea diameter and phloem width in comparison with the control seedlings grown on saline medium. Moreover, they generally reduced the cuticle thickness, epidermis cell length and cambium thickness.

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Statistical studies on anatomical modifications in the radicle and hypocotyl of cotton induced by NaCl

Cited by 9 publications

References 11 publications

Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus)

Salinity-induced changes in the morphology, physiology, and anatomy of seeds and seedlings of smooth narra (Pterocarpus indicus Willd. f. indicus)

Interactive Effects of Certain Vitamins, Bioregulator and Yeast Extract on Sweet Pepper Stem and Leaf Anatomy Under Two Types of Salinity.

Effects of some plant growth regulators on stem anatomy of radish seedlings grown under saline (NaCl) conditions

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