Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages

Cheng, Xiangdong; Zhu, Huiling; Bañuelos, Gary S.; Yan, Baixing; Shutes, Brian; Liang, Yongchao; Chen, X.

doi:10.1016/j.sajb.2018.07.005

Cited by 14 publications

(14 citation statements)

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“…2), and the same result was previously observed in Hydrilla verticillata (Rout and Shaw 2001). control and EC = 5 dS m −1 ) (Cheng et al 2018). However, the highest chlorophyll content of Canna indica and A. philoxeroides was produced under the highest salinities.…”

Section: Discussionsupporting

confidence: 86%

“…Our results provide further evidence that an increasing Na + /K + ratio of aquatic plant species (e.g. It's worth noting that in a previous study, A. donax also maintained a low Na + /K + ratio under alkaline salt stress (Cheng et al 2018). For example, A. donax and A. philoxeroides generally showed increasing K + concentration in the roots with increasing salinity levels.…”

Section: Discussionsupporting

confidence: 81%

“…In this study, the Na + ions in most tested species (e.g. However, the mean ratio of Na + contents in BGB and AGB of A. donax was much higher than in the other species under the condition of high alkaline salt stress (Cheng et al 2018). 5).…”

Section: Discussionmentioning

confidence: 50%

“…High tissue Na + / K + ratios may injure plant tissues in a saline environment (Amini and Ehsanpour 2005). C. indica) under high salinities (salt stress and alkaline salt stress) weaken the salt-tolerance of plants related to asexual reproduction and growth (Hariadi et al 2011, Zhang et al 2013, Zhu and Banuelos 2016, Cheng et al 2018. C. indica) under high salinities (salt stress and alkaline salt stress) weaken the salt-tolerance of plants related to asexual reproduction and growth (Hariadi et al 2011, Zhang et al 2013, Zhu and Banuelos 2016, Cheng et al 2018.…”

Section: Discussionmentioning

confidence: 99%

“…Our previous study (Cheng et al 2018) demonstrated that different aquatic plants show different responses to alkaline saline stress (NaHCO 3 was applied in the experiment) in terms of asexual reproduction and continued growth. As is well known, NaHCO 3 is the main salt of many saline-alkaline inland wetlands (Xu et al 2014), while, the main salt in coastal regions is NaCl.…”

Section: Introductionmentioning

confidence: 99%

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Influence of salt stress on propagation, growth and nutrient uptake of typical aquatic plant species

Chen

Cheng

Zhu

et al. 2019

Nordic Journal of Botany

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Anthropogenic activities and natural causes contribute to an increase in the area and degree of degraded saline wetlands in arid/semi‐arid and coastal regions. The objective of this study was to determine the salt tolerance of the seven aquatic plant species Phragmites australis, Arundo donax, Canna indica, Scirpus validus, Alternanthera philoxeroides, Phyllostachys heteroclada and Potederia cordata during asexual reproduction and continuous growth. The species were exposed to five salinity treatments from 0.3 (control) to 20 dS m−1 during a 30 day experiment. Data were collected on asexual reproduction and growth, chlorophyll content in leaves, Na+ and K+ concentrations, total nitrogen (TN) and total phosphorus (TP) concentrations in above‐ground biomass (AGB) and below‐ground biomass (BGB). The results showed that: 1) increase in salinity (especially at a salinity level of EC ≥15 dS m−1) generally inhibited the capacity for asexual reproduction and reduced the chlorophyll content of leaves; 2) total dry biomass of plants was significantly negatively related to asexual reproduction; 3) species‐specific salt tolerance mechanisms were reflected by the Na+ and K+ concentrations and Na+/K+ ratios in different parts of the plants; and 4) the absorption of TN and TP were inhibited at high salinity (i.e. EC = 20 dS m−1) in AGB and BGB of most tested plant species. However, salinity may enhance plant uptake of TN and TP under certain conditions (e.g. EC at 5, 10 and 15 dS m−1). In general, as compared to the other species tested, giant reed A. donax and alligator weed A. philoxeroides showed relatively high asexual reproduction and growth capacity under high salt stress, and these species should thus be considered as candidates for restoration of degraded saline wetlands and/or for decontaminating saline wastewater.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 50%