In Vitro Assessment of Salt Stress Tolerance in Wild Potato Species

被引:1
|
作者
Garramone, Raffaele [1 ]
Coppola, Giuseppe Paolo [1 ]
Aversano, Riccardo [1 ]
Docimo, Teresa [2 ]
Sedlak, Petr [3 ]
Carputo, Domenico [1 ]
机构
[1] Univ Naples Federico II, Dept Agr Sci, Via Univ 100, I-80055 Portici, Italy
[2] CNR, Natl Res Council Italy, Inst Biosci & Bioresources, IBBR, Via Univ 133, I-80055 Portici, Italy
[3] Czech Univ Life Sci Prague, Fac Agrobiol Food & Nat Resources, Dept Genet & Breeding, Prague 16500, Czech Republic
来源
AGRONOMY-BASEL | 2023年 / 13卷 / 07期
关键词
salinity stress; root plasticity; salt tolerance index; RESISTANCE; DIVERSITY; GENOME; ADAPTATION; PLASTICITY; EVOLUTION; GENETICS;
D O I
10.3390/agronomy13071784
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Proof of concept salt tolerance and plasticity. Wild germplasm may represent a precious source of genetic variability for salt tolerance. This study evaluated the morphological changes occurring under controlled and saline conditions in tuber-bearing S. bulbocastanum, S. commersonii, S. chomatophyllum, S. multidissectum, S. pinnactisectum, S. phureja, and cultivated S. tuberosum. An in vitro screening method was employed. Significant phenotypic variations were observed for all phenotypic traits analyzed at all NaCl levels (0, 40, 60, and 120 mM). In addition, a significant correlation between root plasticity and salt tolerance was found. Further, changes in proline and total phenolic content were assessed to envisage the metabolic adjustments of tolerant clones towards salinity. The most promising sources of tolerance were identified in S. commersonii and S. multidissectum and information obtained is discussed from a breeding perspective.
引用
收藏
页数:11
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