Screening for salinity and waterlogging tolerance in five Casuarina species

Moezel, Paul G. van der; Walton, C.S.; Pearce-Pinto, G. V. N.; Bell, David T.

doi:10.1016/0169-2046(89)90087-x

Cited by 41 publications

(21 citation statements)

References 8 publications

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“…This combined negative effect of salinity and hypoxia has been reported also in other tree species including olive (Aragüés et al 2004) and several Australian tree species (Van der Moezel et al 1988). Van der Moezel et al (1989) and Tomar and Gupta (2002) ranked C. glauca and C. obesa as the most tolerant species to salinity and waterlogging within the Casuarina genus. After twelve weeks under the highest level of waterlogged salinity, these were the only two species that fully survived of the six Casuarina species analyzed.…”

Section: Discussionmentioning

confidence: 99%

Response of five tree species to salinity and waterlogging: shoot and root biomass and relationships with leaf and root ion concentrations

2014

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Unproductive saline and waterlogged (WT) wastelands could be beneficially transformed into agroforestry systems using trees tolerant to these stresses. We studied the salinity and waterlogging tolerance of five Australian tree species (Acacia salicina, Casuarina glauca, Casuarina obesa, Eucalyptus camaldulensis and Eucalyptus occidentalis) during seedling stage and their relationships with root and leaf ion concentrations. 8-month old plants were exposed for 5 months to five irrigation water salinity treatments (EC values between 2 and 22 dS m−1) and two waterlogging treatments (drained or WT). The salinity tolerance of the five species was high, although decreased in WT conditions. Irrespective of salinity, the two Casuarina species were more tolerant and the other three species were less tolerant to WT than drained conditions. In all species, salinity and waterlogging increased leaf Cl− and Na+ and decreased leaf Ca2+, but not leaf K+. Root Cl− and Na+ increased with salinity but not with waterlogging. Salinity tolerance was negatively correlated with Cl− and Na+ leaf accumulation rates per unit increase in salinity. Waterlogging reduced the ability of the seedlings to exclude Cl− and Na+ from the leaves. The two most salt tolerant Casuarina species under both drained and WT conditions showed the highest leaf Cl− and Na+ exclusion and the highest root Cl− and Na+ accumulation, suggesting that sequestration of these toxic ions in their roots was a significant salt-tolerant mechanism. Revegetation of saline and WT wastelands with these tolerant Casuarina species could be profitably used for biomass, biofuel and renewable energy production

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Section: Discussionmentioning

confidence: 99%

Response of five tree species to salinity and waterlogging: shoot and root biomass and relationships with leaf and root ion concentrations

2014

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“…House et al (1998) reported that C. glauca performed well at salinity 20 dS m -1 , but C. cunninghamian a demonstrated good growth only up to 12 dS m -1 , showing lesser tolerance than C. glauca. Similarly, Marcar (1996) and Van der Moezel et al (1989) also observed marked differences in survival and growth of C. cristata and C. cunninghamian a while comparing effect of salinity and waterlogging on these accessions. There was lot of variation in tree growth (height and diameter at breast height) of C. equisetifolia plantation grown in the salinity range of 12 to 26 dS m -1 (Figure 1).…”

Section: Salt Tolerancementioning

confidence: 77%

“…Doran and Hall (1983) reported that some of the Casuarina spp., such as C. equisetifolia and C. glauca within or near to coastal areas and C. obesa on inland areas, have been found growing naturally in saline soils under saline groundwaters. Several other evidences suggest that Casuarina can withstand salinity of the soil and underground water to an appreciable extent (El Lakany, 1996;NAS, 1980;Tomar & Gupta, 1985;Redell, 1993;Marcar, 1996;Van der Moezel et al, 1989), but very little information is available on silvicultural practices and promising accessions. In view of this, an attempt has been made in this study to evaluate the relative performance of some Casuarina accessions and important silvicultural practices in saline waterlogged soils.…”

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confidence: 97%

Relative Performance of Some Accessions of Casuarina spp. and Silvicultural Practices on Saline Waterlogged Soils in Semiarid Conditions

Tomar¹,

Gupta²

2002

Arid Land Research and Management

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“…ssp. incana has a relatively higher growth rate, more excellent wind resistance (Van der Moezel et al ., ), and its height can reach 6–12 m (Ndoye et al ., ). C. cunninghamiana is highest at 20–35 m (BRIEF, ) and enormously resistant to wind, which makes it the most important timber in the coastal areas (Zhong et al ., ).…”

Section: Resultsmentioning

confidence: 99%

De novo genome assembly of the stress tolerant forest species Casuarina equisetifolia provides insight into secondary growth

Ye¹,

Zhang

Chen³

et al. 2019

The Plant Journal

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These authors contributed equally to this work. SUMMARYCasuarina equisetifolia (C. equisetifolia), a conifer-like angiosperm with resistance to typhoon and stress tolerance, is mainly cultivated in the coastal areas of Australasia. C. equisetifolia, making it a valuable model to study secondary growth associated genes and stress-tolerance traits. However, the genome sequence is unavailable and therefore wood-associated growth rate and stress resistance at the molecular level is largely unexplored. We therefore constructed a high-quality draft genome sequence of C. equisetifolia by a combination of Illumina second-generation sequencing reads and Pacific Biosciences single-molecule real-time (SMRT) long reads to advance the investigation of this species. Here, we report the genome assembly, which contains approximately 300 megabases (Mb) and scaffold size of N50 is 1.06 Mb. Additionally, gene annotation, assisted by a combination of prediction and RNA-seq data, generated 29 827 annotated protein-coding genes and 1983 non-coding genes, respectively. Furthermore, we found that the total number of repetitive sequences account for one-third of the genome assembly. Here we also construct the genome-wide map of DNA modification, such as two novel forms N 6 -adenine (6mA) and N4-methylcytosine (4mC) at the level of single-nucleotide resolution using single-molecule real-time (SMRT) sequencing. Interestingly, we found that 17% of 6mA modification genes and 15% of 4mC modification genes also included alternative splicing events. Finally, we investigated cellulose, hemicellulose, and lignin-related genes, which were associated with secondary growth and contained different DNA modifications. The high-quality genome sequence and annotation of C. equisetifolia in this study provide a valuable resource to strengthen our understanding of the diverse traits of trees.

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Screening for salinity and waterlogging tolerance in five Casuarina species

Cited by 41 publications

References 8 publications

Response of five tree species to salinity and waterlogging: shoot and root biomass and relationships with leaf and root ion concentrations

Response of five tree species to salinity and waterlogging: shoot and root biomass and relationships with leaf and root ion concentrations

Relative Performance of Some Accessions of Casuarina spp. and Silvicultural Practices on Saline Waterlogged Soils in Semiarid Conditions

De novo genome assembly of the stress tolerant forest species Casuarina equisetifolia provides insight into secondary growth

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