1
|
Li S, Jiang T, Ahmed W, Yang Y, Yang L, Zhang T, Mei F, Alharbi SA, Shan Q, Guo C, Zhao Z. Deciphering the impact of nitrogen morphologies distribution on nitrogen and biomass accumulation in tobacco plants. FRONTIERS IN PLANT SCIENCE 2024; 15:1377364. [PMID: 39011300 PMCID: PMC11246850 DOI: 10.3389/fpls.2024.1377364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 06/10/2024] [Indexed: 07/17/2024]
Abstract
Background and aims Nitrogen (N) distribution in plants is intricately linked to key physiological functions, including respiration, photosynthesis, structural development, and nitrogen storage. However, the specific effects of different N morphologies on N accumulation and plant growth are poorly understood. Our research specifically focused on determining how different N morphologies affect N absorption and biomass accumulation. Methods This study elucidated the impact of different application rates (CK: 0 g N/plant; T1: 4 g N/plant; T2: 8 g N/plant) of N fertilizer on N and biomass accumulation in tobacco cultivars Hongda and K326 at different growth stages. Results Our findings emphasize the critical role of N distribution in various plant parts, including leaves, stems, and roots, in determining the complex mechanisms of N and biomass accumulation in tobacco. We found that in relation to total N, a greater ratio of water-soluble N (N w) in leaves facilitated N accumulation in leaves. In contrast, an increased ratio of SDS (detergent)-insoluble N (N in-SDS) in leaves and non-protein N (N np) in roots hindered this increase. Additionally, our results indicate that a greater proportion of N np in leaves has a negative impact on biomass accumulation in leaves. Furthermore, elevated levels of N in-SDS, N w, and N np in roots, and N np in leaves adversely affected biomass accumulation in tobacco leaves. The Hongda cultivar exhibited greater biomass and N accumulation abilities as compared to K326. Conclusions Our findings highlight the significant role of distribution of N morphologies on plant growth, as well as N and biomass accumulation in tobacco plants. Understanding N distribution allows farmers to optimize N application, minimizing environmental losses and maximizing yield for specific cultivars. These insights advance sustainable agriculture by promoting efficient resource use and reducing environmental impact.
Collapse
Affiliation(s)
- Shichen Li
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Tao Jiang
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Waqar Ahmed
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Yingfen Yang
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Linyuan Yang
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Tao Zhang
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Fupeng Mei
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Sulaiman Ali Alharbi
- Department of Botany & Microbiology College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Qu Shan
- Yunnan Agricultural University, Kunming, Yunnan, China
| | - Cuilian Guo
- Yunnan Agricultural University, Kunming, Yunnan, China
| | | |
Collapse
|
2
|
Jing X, Chen P, Jin X, Lei J, Wang L, Chai S, Yang X. Physiological, Photosynthetic, and Transcriptomics Insights into the Influence of Shading on Leafy Sweet Potato. Genes (Basel) 2023; 14:2112. [PMID: 38136933 PMCID: PMC10742944 DOI: 10.3390/genes14122112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Leafy sweet potato is a new type of sweet potato, whose leaves and stems are used as green vegetables. However, sweet potato tips can be affected by pre-harvest factors, especially the intensity of light. At present, intercropping, greenhouse planting, and photovoltaic agriculture have become common planting modes for sweet potato. Likewise, they can also cause insufficient light conditions or even low light stress. This research aimed to evaluate the influence of four different shading levels (no shading, 30%, 50%, and 70% shading degree) on the growth profile of sweet potato leaves. The net photosynthetic rate, chlorophyll pigments, carbohydrates, and polyphenol components were determined. Our findings displayed that shading reduced the content of the soluble sugar, starch, and sucrose of leaves, as well as the yield and Pn. The concentrations of Chl a, Chl b, and total Chl were increased and the Chl a/b ratio was decreased for the more efficient interception and absorption of light under shading conditions. In addition, 30% and 50% shading increased the total phenolic, total flavonoids, and chlorogenic acid. Transcriptome analysis indicated that genes related to the antioxidant, secondary metabolism of phenols and flavonoids, photosynthesis, and MAPK signaling pathway were altered in response to shading stresses. We concluded that 30% shading induced a high expression of antioxidant genes, while genes related to the secondary metabolism of phenols and flavonoids were upregulated by 50% shading. And the MAPK signaling pathway was modulated under 70% shading, and most stress-related genes were downregulated. Moreover, the genes involved in photosynthesis, such as chloroplast development, introns splicing, and Chlorophyll synthesis, were upregulated as shading levels increased. This research provides a new theoretical basis for understanding the tolerance and adaptation mechanism of leafy sweet potato in low light environments.
Collapse
Affiliation(s)
- Xiaojing Jing
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
- Agricultural College, Yangtze University, Jingzhou 434022, China
| | - Peiru Chen
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
| | - Xiaojie Jin
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
| | - Jian Lei
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
| | - Lianjun Wang
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
| | - Shasha Chai
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
| | - Xinsun Yang
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.J.); (P.C.); (X.J.); (J.L.); (L.W.); (S.C.)
| |
Collapse
|
3
|
Wu BS, Mansoori M, Trumpler K, Addo PW, MacPherson S, Lefsrud M. Effect of Amber (595 nm) Light Supplemented with Narrow Blue (430 nm) Light on Tomato Biomass. PLANTS (BASEL, SWITZERLAND) 2023; 12:2457. [PMID: 37447018 DOI: 10.3390/plants12132457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/20/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023]
Abstract
Full-spectrum light-emitting diodes (LEDs) mainly comprising 460-nm + 595-nm light are becoming a mainstay in the horticulture industry, and recent studies indicate that plant productivity under white LEDs is higher than combined blue and red LED lighting. Different light properties (wavelength and bandwidth) in full-spectrum light, particularly for the blue and amber light regions, have only partly been explored. This research aimed to characterize the effects of amber + blue light wavelengths and bandwidths on tomato (Solanum lycopersicum cv. Beefsteak) growth, morphology, and production efficiency. Tomato seedlings were subjected to four different light treatments for 60 days: narrow amber light (595 nm), narrow blue + narrow amber light (430 nm + 595 nm) with a 1:10 ratio, white LED (455 nm + 595 nm), and a high-pressure sodium (HPS) lamp (control). The highest mean fresh mass yield occurred with the narrow blue + narrow amber light (479 g), followed by white LED at 20% less, HPS at 34% less, and narrow amber at 40% less. Dry mass and plant height were similar among light treatments. Supplementing narrow amber light with 430-nm blue light led to a 20% increase in chlorophyll content. Findings indicate that narrow amber light is more efficient in biomass accumulation than broad amber light and that precise selection of different blue and amber wavelengths can greatly impact the growth and development of tomato seedlings. This energy-efficient narrow-wavelength combination shows improvement over white LED lighting for maximizing tomato growth.
Collapse
Affiliation(s)
- Bo-Sen Wu
- Bioresource Engineering Department, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Mahnaz Mansoori
- Bioresource Engineering Department, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Keli Trumpler
- Bioresource Engineering Department, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Philip Wiredu Addo
- Bioresource Engineering Department, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Sarah MacPherson
- Bioresource Engineering Department, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Mark Lefsrud
- Bioresource Engineering Department, McGill University, Macdonald Campus, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| |
Collapse
|
4
|
Tadda SA, Li C, Ding J, Li J, Wang J, Huang H, Fan Q, Chen L, He P, Ahiakpa JK, Karikari B, Chen X, Qiu D. Integrated metabolome and transcriptome analyses provide insight into the effect of red and blue LEDs on the quality of sweet potato leaves. FRONTIERS IN PLANT SCIENCE 2023; 14:1181680. [PMID: 37324670 PMCID: PMC10266350 DOI: 10.3389/fpls.2023.1181680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/02/2023] [Indexed: 06/17/2023]
Abstract
Red and blue light-emitting diodes (LEDs) affect the quality of sweet potato leaves and their nutritional profile. Vines cultivated under blue LEDs had higher soluble protein contents, total phenolic compounds, flavonoids, and total antioxidant activity. Conversely, chlorophyll, soluble sugar, protein, and vitamin C contents were higher in leaves grown under red LEDs. Red and blue light increased the accumulation of 77 and 18 metabolites, respectively. Alpha-linoleic and linolenic acid metabolism were the most significantly enriched pathways based on Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. A total of 615 genes were differentially expressed between sweet potato leaves exposed to red and blue LEDs. Among these, 510 differentially expressed genes were upregulated in leaves grown under blue light compared with those grown under red light, while the remaining 105 genes were expressed at higher levels in the latter than in the former. Among the KEGG enrichment pathways, blue light significantly induced anthocyanin and carotenoid biosynthesis structural genes. This study provides a scientific reference basis for using light to alter metabolites to improve the quality of edible sweet potato leaves.
Collapse
Affiliation(s)
- Shehu A. Tadda
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Agronomy, Federal University Dutsin-Ma, Katsina, Nigeria
- Agriculture Research Group, Organization of African Academic Doctors (OAAD), Nairobi, Kenya
| | - Chengyue Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jintao Ding
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jian’an Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jingjing Wang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Huaxing Huang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Quan Fan
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lifang Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Pengfei He
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - John K. Ahiakpa
- Agriculture Research Group, Organization of African Academic Doctors (OAAD), Nairobi, Kenya
| | - Benjamin Karikari
- Agriculture Research Group, Organization of African Academic Doctors (OAAD), Nairobi, Kenya
- Department of Agricultural Biotechnology, University for Development Studies, Tamale, Ghana
| | - Xuanyang Chen
- College of Agriculture, Fujian Agriculture, and Forestry University, Fuzhou, China
- Key Laboratory of Crop Biotechnology, Fujian Agriculture and Forestry University, Fujian Province Universities, Fuzhou, China
| | - Dongliang Qiu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
| |
Collapse
|
5
|
Gao D, Ji X, Yuan Q, Pei W, Zhang X, Li F, Han Q, Zhang S. Effects of total daily light integral from blue and broad-band red LEDs on flowering of saffron (Crocus sativus L.). Sci Rep 2023; 13:7175. [PMID: 37137943 PMCID: PMC10156906 DOI: 10.1038/s41598-023-34424-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/29/2023] [Indexed: 05/05/2023] Open
Abstract
Present indoor cultivation of saffron (Crocus sativus L.) only depends on artificial planting experience, so that flower number and stigma yield are seriously affected in case of cloudy or rainy days and temperature changes. In this study, a luminaire was used at 10-h photoperiod combined 450 nm blue LEDs with 660 nm broad-band red LEDs, which respectively had full width at half maximum (FWHM) of 15 nm and 85 nm, in a ratio of blue: red: far-red light = 20%: 62%: 18%. The influence of total daily light integral (TDLI) was evaluated on flowering characteristics, stigma quality, as well as leaf morphological characteristics. The results showed that flower number, daily flowering proportion, stigma dry weight and crocetin esters content were significantly correlated with TDLI (P < 0.01). The increasing TDLI could slightly promote leaf width and leaf area beyond buds, but had no significant effect on bud length and leaf length. Both the average flower number per corm and dried stigma yield was the highest under the 150 mol m-2 TDLI treatment, up to 3.63 and 24.19 mg respectively. The former was 0.7 more than that under original natural light treatment, while the later was 50% higher. Totaling, combining blue LEDs with a broad-band red LEDs of the 150 mol m-2 TDLI was the most favorable condition for flower number and stigma quality of saffron in this study.
Collapse
Affiliation(s)
- Dan Gao
- Institute for Electric Light Sources, Fudan University, Shanghai, 200438, China
| | - Xinyu Ji
- Institute for Electric Light Sources, Fudan University, Shanghai, 200438, China
| | - Qing Yuan
- Institute for Electric Light Sources, Fudan University, Shanghai, 200438, China
| | - Weizhong Pei
- Shanghai Traditional Chinese Medicine Co Ltd, Shanghai, 200082, China
| | - Xue Zhang
- Shanghai Traditional Chinese Medicine Co Ltd, Shanghai, 200082, China
| | - Fusheng Li
- Institute for Electric Light Sources, Fudan University, Shanghai, 200438, China
| | - Qiuyi Han
- Institute for Electric Light Sources, Fudan University, Shanghai, 200438, China.
| | - Shanduan Zhang
- Institute for Electric Light Sources, Fudan University, Shanghai, 200438, China.
| |
Collapse
|
6
|
He J, Gan JHS, Qin L. Productivity, photosynthetic light-use efficiency, nitrogen metabolism and nutritional quality of C 4 halophyte Portulaca oleracea L. grown indoors under different light intensities and durations. FRONTIERS IN PLANT SCIENCE 2023; 14:1106394. [PMID: 36875599 PMCID: PMC9975723 DOI: 10.3389/fpls.2023.1106394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Portulaca oleracea L. (known as purslane), is a nutritious facultative C4 halophyte. Recently, it has been successfully grown indoors under LED lightings by our team. However, basic understanding about the impacts of light on purslanes are lacking. This study aimed to investigate the effects of light intensity and duration on productivity, photosynthetic light use efficiency, nitrogen metabolism and nutritional quality of indoor grown purslanes. All plants were grown in 10% artificial seawater hydroponically under different photosynthetic photon flux densities (PPFDs) and durations and thus different daily light integrals (DLI). They are, L1 (240 µmol photon m-2 s-1, 12 h, DLI = 10.368 mol m-2 day-1); L2 (320 µmol photon m-2 s-1, 18 h, DLI = 20.736 mol m-2 day-1); L3 (240 µmol photon m-2 s-1, 24 h, DLI = 20.736 mol m-2 day-1); L4 (480 µmol photon m-2 s-1, 12 h, DLI = 20.736 mol m-2 day-1), respectively. Compared to L1, higher DLI promoted root and shoot growth and thus increased shoot productivity by 2.63-,1.96-, 3.83-folds, respectively for purslane grown under L2, L3, L4. However, under the same DLI, L3 plants (continuous light, CL) had significantly lower shoot and root productivities compared those with higher PPFDs but shorter durations (L2 and L4). While all plants had similar total chlorophyll and carotenoid concentrations, CL (L3) plants had significantly lower light use efficiency (Fv/Fm ratio), electron transport rate, effective quantum yield of PSII, photochemical- and non-photochemical quenching. Compared to L1, higher DLI with higher PPFDs (L2 and L4) increased leaf maximum nitrate reductase activity while longer durations increased leaf NO 3 - concentrations and total reduced nitrogen. There were no significant differences in leaf total soluble protein, total soluble sugar and total ascorbic acid concentrations in both leaf and stem regardless of light conditions. However, L2 plants had the highest leaf proline concentration but leaf total phenolic compounds concentration was higher in L3 plants instead. Generally, L2 plants had the highest dietary minerals such as K, Ca, Mg and Fe among the four different light conditions. Overall, L2 condition is the most suitable lighting strategy in enhancing productivity and nutritional quality of purslane.
Collapse
|
7
|
He J, Chang C, Qin L, Lai CH. Impacts of Deficit Irrigation on Photosynthetic Performance, Productivity and Nutritional Quality of Aeroponically Grown Tuscan Kale ( Brassica oleracea L.) in a Tropical Greenhouse. Int J Mol Sci 2023; 24:ijms24032014. [PMID: 36768337 PMCID: PMC9916908 DOI: 10.3390/ijms24032014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Tuscan kale was grown aeroponically with 5, 30 and 60 min nutrient spraying intervals (defined as 5 minNSIs, 30 minNSIs and 60 minNSIs). Four weeks after transplanting, some 5 minNSI plants were transferred to a 60 minNSI (5 minNSI → 60 minNSI) and 90 minNSI (5 minNSI → 90 minNSI) for one more week. Significantly lower light-saturated rates of photosynthesis and stomatal conductance were observed for plants grown with a 60 minNSI than with a 5 minNSI. However, all plants had similar internal CO2 concentrations and transpiration rates. Reduced light use efficiency but increased energy dissipation was observed in plants grown in a 60 minNSI. A higher nitrate concentration was observed in 60 minNSI plants compared to 5 minNSI and 30 minNSI plants, while all plants had similar concentrations of total reduced nitrogen, leaf soluble protein and Rubisco protein. Plants grown with prolonged NSIs (deficit irrigation) had lower biomass accumulation due to the inhibition of leaf initiation and expansion compared to 5 minNSIs. However, there was no substantial yield penalty in 5 minNSI → 60 minNSI plants. Enhancements in nutritional quality through deficit irrigation at pre-harvest were measured by proline and total soluble sugar. In conclusion, it is better to grow Tuscan kale with a 5 minNSI for four weeks followed by one week with a 60 minNSI before harvest to reduce water usage, yield penalty and enhance nutritional quality.
Collapse
Affiliation(s)
- Jie He
- Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore
- Correspondence: ; Tel.: +65-6790-3817; Fax: +65-6896-9414
| | - Crystalbelle Chang
- Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore
| | - Lin Qin
- Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore
| | - Cheng Hsiang Lai
- Meod Pte Ltd., 13 Neo Tiew Harvest Lane, Singapore 719838, Singapore
| |
Collapse
|
8
|
He J, Koh DJQ, Qin L. LED spectral quality and NaCl salinity interact to affect growth, photosynthesis and phytochemical production of Mesembryanthemum crystallinum. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:483-495. [PMID: 33972013 DOI: 10.1071/fp20375] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/16/2021] [Indexed: 05/27/2023]
Abstract
The edible halophyte Mesembryanthemum crystallinum L. was grown at different NaCl salinities under different combined red and blue light-emitting diode (LED) light treatments. High salinity (500 mM NaCl) decreased biomass, leaf growth, and leaf water content. Interactions between LED ratio and salinity were detected for shoot biomass and leaf growth. All plants had F v /F m ratios close to 0.8 in dark-adapted leaves, suggesting that they were all healthy with similar maximal efficiency of PSII photochemistry. However, measured under the actinic light near or above the growth light, the electron transport rate (ETR) and photochemical quenching (qP) of M. crystallinum grown at 100 and 250 mM NaCl were higher than at 500 mM NaCl. Grown under red/blue LED ratios of 0.9, M. crystallinum had higher ETR and qP across all salinities indicating higher light energy utilisation. Crassulacean acid metabolism (CAM) was induced in M. crystallinum grown at 500 mM NaCl. CAM-induced leaves had much higher non-photochemical quenching (NPQ), suggesting that NPQ can be used to estimate CAM induction. M. crystallinum grown at 250 and 500 mM NaCl had higher total chlorophyll and carotenoids contents than at 100 mM NaCl. Proline, total soluble sugar, ascorbic acid, and total phenolic compounds were higher in plants at 250 and 500 mM NaCl compared with those at 100 mM NaCl. An interaction between LED ratio and salinity was detected for proline content. Findings of this study suggest that both salinity and light quality affect productivity, photosynthetic light use efficiency, and proline accumulation of M. crystallinum .
Collapse
Affiliation(s)
- Jie He
- Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616; and Corresponding author
| | - Dominic J Q Koh
- Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616
| | - Lin Qin
- Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616
| |
Collapse
|
9
|
Yao X, Lan Y, Liao L, Huang Y, Yu S, Ye S, Yang M. Effects of nitrogen supply rate on photosynthesis, nitrogen uptake and growth of seedlings in a Eucalyptus/Dalbergia odorifera intercropping system. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:192-204. [PMID: 34569130 DOI: 10.1111/plb.13341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The introduction of N2 -fixing species into a Eucalyptus plantation resulted in a successful planting system. It is essential to understand the contribution of nitrogen (N) competition and photosynthetic efficiency to plant dry matter yield to shed more light on the growth mechanism of the Eucalyptus/legume system. We compared N competition, photosynthesis and dry matter yield of Eucalyptus urophylla × E. grandis and the N2 -fixing tree species Dalbergia odorifera in intercropping and monoculture systems under different N levels. The photosynthesis of E. urophylla × E. grandis was improved, while that of D. odorifera was inhibited in the intercropping system. Intercropped E. urophylla × E. grandis increased the N utilization and the dry matter yield by 6.57-48.46% and 7.59-97.26%, and decreased those of D. odorifera by 10.21-30.33% and 0.48-13.19%, respectively. Furthermore, N application enhanced the competitive ability of E. urophylla × E. grandis relative to D. odorifera and changed the N contents and chlorophyll synthesis to optimize the photosynthetic structure of both species. Our results reveal Eucalyptus for photosynthesis, N absorption and increasing the growth benefit from the introduction of N2 -fixing species, which hence can be considered to be an effective sustainable management option of Eucalyptus plantations.
Collapse
Affiliation(s)
- X Yao
- College of Forestry, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Y Lan
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - L Liao
- College of Forestry, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Y Huang
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - S Yu
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - S Ye
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - M Yang
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| |
Collapse
|
10
|
Naomi R, Bahari H, Yazid MD, Othman F, Zakaria ZA, Hussain MK. Potential Effects of Sweet Potato ( Ipomoea batatas) in Hyperglycemia and Dyslipidemia-A Systematic Review in Diabetic Retinopathy Context. Int J Mol Sci 2021; 22:10816. [PMID: 34639164 PMCID: PMC8509747 DOI: 10.3390/ijms221910816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 08/29/2021] [Accepted: 09/06/2021] [Indexed: 12/15/2022] Open
Abstract
Hyperglycemia is a condition with high glucose levels that may result in dyslipidemia. In severe cases, this alteration may lead to diabetic retinopathy. Numerous drugs have been approved by officials to treat these conditions, but usage of any synthetic drugs in the long term will result in unavoidable side effects such as kidney failure. Therefore, more emphasis is being placed on natural ingredients due to their bioavailability and absence of side effects. In regards to this claim, promising results have been witnessed in the usage of Ipomoea batatas (I. batatas) in treating the hyperglycemic and dyslipidemic condition. Thus, the aim of this paper is to conduct an overview of the reported effects of I. batatas focusing on in vitro and in vivo trials in reducing high glucose levels and regulating the dyslipidemic condition. A comprehensive literature search was performed using Scopus, Web of Science, Springer Nature, and PubMed databases to identify the potential articles on particular topics. The search query was accomplished based on the Boolean operators involving keywords such as (1) Beneficial effect OR healing OR intervention AND (2) sweet potato OR Ipomoea batatas OR traditional herb AND (3) blood glucose OR LDL OR lipid OR cholesterol OR dyslipidemia. Only articles published from 2011 onwards were selected for further analysis. This review includes the (1) method of intervention and the outcome (2) signaling mechanism involved (3) underlying mechanism of action, and the possible side effects observed based on the phytoconstiuents isolated. The comprehensive literature search retrieved a total of 2491 articles using the appropriate keywords. However, on the basis of the inclusion and exclusion criteria, only 23 articles were chosen for further review. The results from these articles indicate that I. batatas has proven to be effective in treating the hyperglycemic condition and is able to regulate dyslipidemia. Therefore, this systematic review summarizes the signaling mechanism, mechanism of action, and phytoconstituents responsible for those activities of I. batatas in treating hyperglycemic based on the in vitro and in vivo study.
Collapse
Affiliation(s)
- Ruth Naomi
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.N.); (H.B.)
| | - Hasnah Bahari
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.N.); (H.B.)
| | - Muhammad Dain Yazid
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Fezah Othman
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia;
- Halal Product Development Unit, Halal Product Research Institute, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Mohd Khairi Hussain
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| |
Collapse
|
11
|
He J, Jawahir NKB, Qin L. Quantity of supplementary LED lightings regulates photosynthetic apparatus, improves photosynthetic capacity and enhances productivity of Cos lettuce grown in a tropical greenhouse. PHOTOSYNTHESIS RESEARCH 2021; 149:187-199. [PMID: 33475915 DOI: 10.1007/s11120-020-00816-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Although cooling their rootzone allows year-round (temperate) vegetable production in Singapore's warm climate, these crops have frequently experienced increasingly unpredictable cloudy and hazy weather. Supplementary lighting with light-emitting diodes (LEDs) could be used to reduce the impacts of low light intensity. This study investigated the responses of temperate Cos lettuce (Lactuca sativa L.) to different quantities (photosynthetic photon flux density, PPFD of 0, 150, 300 µmol m-2 s-1) of supplementary LED lightings in the tropical greenhouse. Increasing light intensity significantly increased total leaf area, shoot and root fresh weight (FW) and dry weight (DW), total chlorophyll (Chl) and carotenoids (Car) contents, light-saturated photosynthetic CO2 assimilation rate (Asat) and transpiration rate (Tr). There were no significant differences in Fv/Fm ratio, total reduced nitrogen, specific leaf area (SLA) and PSII concentration among the three light treatments. However, there was an increasing trend with increasing light intensity for Chl a/b ratio, net photosynthetic O2 evolution rate (PN), cytochrome b6f (Cyt b6f), leaf total soluble protein and Rubisco concentrations. This study provides the basic understanding of photosynthetic apparatus and capacity of temperate crops grown under different supplementary LED lightings in the tropical greenhouse.
Collapse
Affiliation(s)
- Jie He
- Natural Sciences & Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore, 637616, Singapore.
| | - Nur Khairunnisa Bte Jawahir
- Natural Sciences & Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore, 637616, Singapore
| | - Lin Qin
- Natural Sciences & Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore, 637616, Singapore
| |
Collapse
|
12
|
He J, You X, Qin L. High Salinity Reduces Plant Growth and Photosynthetic Performance but Enhances Certain Nutritional Quality of C 4 Halophyte Portulaca oleracea L. Grown Hydroponically Under LED Lighting. FRONTIERS IN PLANT SCIENCE 2021; 12:651341. [PMID: 33828578 PMCID: PMC8019967 DOI: 10.3389/fpls.2021.651341] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 03/01/2021] [Indexed: 05/27/2023]
Abstract
Portulaca oleracea L. (known as purslane) is one of the most nutritious leafy vegetables owing to its high content of antioxidants. In this study, all plants were grown indoors hydroponically with different NaCl salinities. Photosynthetic photo flux density (PPFD) at 200 μmol m-2 s-1 (12 h) was provided to all plants by LED with red:blue ratio of 2.2. Thirty days after transplanting, plants grown with100 mM NaCl had the highest productivity and the fastest leaf growth followed by those with 0, 200 and 300 mM NaCl. Grown with 300 mM NaCl, purslane had the lowest specific leaf area due to its highest leaf dry matter content and its lowest water content. All plants had similar values of leaf succulence except for those with 300 mM NaCl. Total chlorophyll and carotenoids contents were significantly higher in plants grown with 0 and 100 mM NaCl than with 200, and 300 mM NaCl. All plants had Fv/Fm ratios close to 0.8. However, electron transport rate and ΔF/Fm' were significantly higher in plants grown with 0 and 100 mM NaCl than with 200 and 300 mM NaCl. CAM-induced purslane with 300 mM NaCl had higher non-photochemical quenching. Maximum net photosynthetic O2 evolution rate and Cyt b6f concentration were significantly lower with 300 mM NaCl compared to all other plants while all plants had similar PS II concentration. Proline concentration increased with increasing salinities. All plants had similar levels of total soluble sugars. Plants grown with 0 and 100 mM NaCl had significantly higher concentrations of NO3 -, total reduced nitrogen, total leaf soluble protein, Rubisco protein, total ascorbic acid, and total phenolic compounds than with 200 and 300 mM NaCl. The highest concentrations of K, Ca, and Mg were found in purslane grown under 0 mM NaCl. Statistically, no significant differences in Fe concentrations were observed among all plants. However, salinity seems to increase Fe concentration. In conclusion, it is feasible to grow purslane under 100 mM NaCl as it is the most optimal condition to achieve higher productivity and better quality. However, the production of antioxidants may depend on not only salinity but also other growth conditions.
Collapse
|
13
|
Liu Y, Chen Q, Zhou M, Yang X, Yang C, Jiao C. Sweet potato study in China: Stress response mechanisms, molecular breeding, and productivity. JOURNAL OF PLANT PHYSIOLOGY 2020; 254:153283. [PMID: 32961476 DOI: 10.1016/j.jplph.2020.153283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Yi Liu
- Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
| | - Quanxiu Chen
- Hubei Jinyue Agricultural Products Development Co., Ltd, Guangshui, China.
| | - Ming Zhou
- Hubei Jinyue Agricultural Products Development Co., Ltd, Guangshui, China.
| | - Xinsun Yang
- Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
| | - Chunhong Yang
- Hubei Jinyue Agricultural Products Development Co., Ltd, Guangshui, China; Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
| | - Chunhai Jiao
- Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
| |
Collapse
|