Root Morphology of Eight Hybrid Oil Palms Under Iron (Fe) Toxicity

Nurmalasari, Aprilia Ike; Putra, Eka Tarwaca Susila; Yudono, Prapto

doi:10.22146/ipas.11254

Cited by 4 publications

(3 citation statements)

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“…A reduced root surface area can be explained as a strategy to restrict nutrient absorption (Kirk et al, 2022). Nurmalasari et al (2016) observed a reduction in SA due to Fe toxicity in oil palm. The reduction in the SA may be considered as a potential mechanism for Fe exclusion, evidenced by a decrease in the number of root hairs.…”

Section: Discussionmentioning

confidence: 99%

Implications of tolerance to iron toxicity on root system architecture changes in rice (Oryza sativa L.)

Sonu,

Nandakumar,

Singh

et al. 2024

Front. Sustain. Food Syst.

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IntroductionToxicity due to excess soil iron (Fe) is a significant concern for rice cultivation in lowland areas with acidic soils. Toxic levels of Fe adversely affect plant growth by disrupting the absorption of essential macronutrients, and by causing cellular damage. To understand the responses to excess Fe, particularly on seedling root system, this study evaluated rice genotypes under varying Fe levels.MethodsSixteen diverse rice genotypes were hydroponically screened under induced Fe levels, ranging from normal to excess. Morphological and root system characteristics were observed. The onset of leaf bronzing was monitored to identify the toxic response to the excess Fe. Additionally, agronomic and root characteristics were measured to classify genotypes into tolerant and sensitive categories by computing a response stability index.ResultsOur results revealed that 460 ppm of Fe in the nutrient solution served as a critical threshold for screening genotypes during the seedling stage. Fe toxicity significantly affected root system traits, emphasizing the consequential impact on aerial biomass and nutrient deprivation. To classify genotypes into tolerant and sensitive categories, leaf bronzing score was used as a major indicator of Fe stress. However, the response stability index provided a robust basis for classification for the growth performance. Apart from the established tolerant varieties, we could identify a previously unrecognized tolerant variety, ILS 12–5 in this study. Some of the popular mega varieties, including BPT 5204 and Pusa 44, were found to be highly sensitive.DiscussionOur findings suggest that root system damage, particularly in root length, surface area, and root volume, is the key factor contributing to the sensitivity responses under Fe toxicity. Tolerant genotypes were found to retain more healthy roots than the sensitive ones. Fe exclusion, by reducing Fe2+ uptake, may be a major mechanism for tolerance among these genotypes. Further field evaluations are necessary to confirm the behavior of identified tolerant and sensitive lines under natural conditions. Insights from the study provide potential scope for enhancement of tolerance through breeding programs as well as throw light on the role root system in conferring tolerance.

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Section: Discussionmentioning

confidence: 99%

Implications of tolerance to iron toxicity on root system architecture changes in rice (Oryza sativa L.)

Sonu,

Nandakumar,

Singh

et al. 2024

Front. Sustain. Food Syst.

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“…Optimum amount of Fe in soil will enhance the nutrients uptakes by the plant. However, elevated level of Fe will cause toxicity effect and restrict the oil palm development (Nurmalasari et al, 2016). Iron contamination has the ability to alter the plant's morphology, anatomy, and physiology.…”

Section: P R E S Smentioning

confidence: 99%

Geostatistical Assessment of Heavy Metals and Nutrients Availability in Soil of Oil Palm Plantation Affected by Bauxite Mining

ZULKIFLI¹

2022

JOPR

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This study describes the contamination of heavy metals (Cu, Zn, Mn, Pb and Fe) and their effect on K, Ca and Mg availability in oil palm cultivated areas affected by bauxite mining activities using the combinations of geostatistic and geospatial analysis. A total of 64 soil samples were collected covering a total area of 420.21 ha by grid sampling technique. Spatial distributions of the heavy metals were determined using semivariogram and mapped using ArcGIS.

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“…The redyellow podzolic characteristics are high acidity level, a predominance of acid reacting cations, and deficiency of alkaline reagent cations. The dominant acid reagent cations are aluminium (Al), iron (Fe), and manganese (Mn) (Alam et al 2020;Febriani et al 2017;Irawan and Putra 2019;Khoiriyah et al 2016;Nurmalasari et al 2016;Ratnasari et al 2017;Utami et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Metabolic activities of eight oil palm progenies grown under aluminum toxicity

et al. 2021

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Abstract. Putra ETS, Purwanto BH, Wulandari C, Alam T. 2021. Metabolic activities of eight oil palm progenies grown under aluminum toxicity. Biodiversitas 22: 3146-3155. In Indonesia, oil palm is mostly cultivated on red-yellow podzolic soils, which mainly contain the high availability of aluminum (Al). This condition might affect oil palm growth i.e stunted growth and root damage. Therefore, this study was aimed to characterize metabolic activities and growth of eight oil palm progenies under Al toxicity. The study was conducted from January to December 2018 in Bendosari Hamlet, Madurejo Village, Prambanan Sub-District, Sleman District, Province of Yogyakarta, Indonesia. The trial was laid out in a randomized complete block design (RCBD) factorial with three blocks as replications, with experimental factors including oil palm progenies and Al concentration. The observation was conducted on Al concentration in the planting medium, metabolic activities, and oil palm growth. The data were analyzed using ANOVA, PLS-SEM, stepwise regression, hierarchical clustering heatmap, and GGE-Biplot. The results showed that Simalungun, Dumpy, and Yangambi progeny could grow and adapt better than other progenies in Al toxicity conditions. The resistance to Al poisoning mechanism was shown by a relatively low activity of O2-, H2O2, MDA, and REL, whereas SOD, POD, GB, AARed, ?-Toch, TPC RDW and, SDW showed higher relatively.

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Root Morphology of Eight Hybrid Oil Palms Under Iron (Fe) Toxicity

Cited by 4 publications

References 0 publications

Implications of tolerance to iron toxicity on root system architecture changes in rice (Oryza sativa L.)

Implications of tolerance to iron toxicity on root system architecture changes in rice (Oryza sativa L.)

Geostatistical Assessment of Heavy Metals and Nutrients Availability in Soil of Oil Palm Plantation Affected by Bauxite Mining

Metabolic activities of eight oil palm progenies grown under aluminum toxicity

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