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1. The rise and fall of photosynthesis: hormetic dose response in plants

Author:
Agathokleous, Evgenios
Source:
Journal of forestry research 2021 v.32 no.2 pp. 889-898
ISSN:
1007-662X
Subject:
stomatal conductance,   etc   ; Araceae; carotenoids; forestry; gas exchange; hormesis; humans; photosynthesis;     Show all 8 Subjects
Abstract:
... The recent recognition that low doses of herbicides, human and veterinary antibiotics, metallic elements, micro/nano-plastics, and various other types of environmental pollutants widely enhance chlorophylls in the framework of hormesis created the need to further evaluate the response of photosynthetic pigments and gas exchange to low doses of stresses. An analysis of about 370 values of maximum s ...
DOI:
10.1007/s11676-020-01252-1

2. Kinetic variation in grass phosphoenolpyruvate carboxylases provides opportunity to enhance C4 photosynthetic efficiency

Author:
DiMario, Robert J.; Kophs, Ashley N.; Pathare, Varsha S.; Schnable, James C.; Cousins, Asaph B.
Source:
Theplant journal 2021 v.105 no.6 pp. 1677-1688
ISSN:
0960-7412
Subject:
stomatal conductance,   etc   ; amino acids; carbon dioxide; drought; grasses; inorganic carbon;     Show all 6 Subjects
Abstract:
... The high rates of photosynthesis and the carbon‐concentrating mechanism (CCM) in C₄ plants are initiated by the enzyme phosphoenolpyruvate (PEP) carboxylase (PEPC). The flow of inorganic carbon into the CCM of C₄ plants is driven by PEPC’s affinity for bicarbonate (KHCO₃), which can be rate limiting when atmospheric CO₂ availability is restricted due to low stomatal conductance. We hypothesize tha ...
DOI:
10.1111/tpj.15141

3. Morphophysiological changes by mepiquat chloride application in Eucalyptus clones

Author:
dos Santos, Juscelina Arcanjo; Matsumoto, Sylvana Naomi; Trazzi, Paulo André; Ramos, Paula Acácia Silva; de Oliveira, Luan Santos; Campoe, Otavio Camargo
Source:
Trees 2021 v.35 no.1 pp. 189-198
ISSN:
0931-1890
Subject:
stomatal conductance,   etc   ; chlorides; drought tolerance; hybrids; mepiquat; water use efficiency;     Show all 6 Subjects
Abstract:
... KEY MESSAGE: First study of mepiquat chloride as a growth regulator in Eucalyptus. Application of mepiquat chloride in Eucalyptus clones at planting may promote drought resistance. The reduction of available areas has pushed Eucalyptus away to marginal areas with low water availability. Management practices such as the application of growth retardants may have potential to modify plant morphologic ...
DOI:
10.1007/s00468-020-02021-7

4. Incorporating cultivar-specific stomatal traits into stomatal conductance models improves the estimation of evapotranspiration enhancing greenhouse climate management

Author:
Körner, Oliver; Fanourakis, Dimitrios; Chung-Rung Hwang, Michael; Hyldgaard, Benita; Tsaniklidis, Georgios; Nikoloudakis, Nikolaos; Larsen, Dorthe Horn; Ottosen, Carl-Otto; Rosenqvist, Eva
Source:
Biosystems engineering 2021 v.208 pp. 131-151
ISSN:
1537-5110
Subject:
stomatal conductance,   etc   ; cultivars; energy; evapotranspiration; greenhouse effect; greenhouses; model validation; prediction; relative humidity; water potential;     Show all 10 Subjects
Abstract:
... The effect of considering cultivar differences in stomatal conductance (gₛ) on relative air humidity (RH)-related energy demand was addressed. We conducted six experiments in order to study the variation in evapotranspiration (ETc) of six pot rose cultivars, investigate the underlying processes and parameterise a gₛ-based ETc model. Several levels of crop ETc were realised by adjusting the growth ...
DOI:
10.1016/j.biosystemseng.2021.05.010

5. In situ determination of guard cell ion flux underpins the mechanism of ABA-mediated stomatal closure in barley plants exposed to PEG-induced drought stress

Author:
Li, Li; Xing, Jiayi; Ma, Haiyang; Liu, Fulai; Wang, Yaosheng
Source:
Environmental and experimental botany 2021 v.187 pp. 104468
ISSN:
0098-8472
Subject:
stomatal conductance,   etc   ; barley; calcium; guard cells; hydroponics; leaves; mutants; polyethylene glycol; stomatal movement; water stress;     Show all 10 Subjects
Abstract:
... ABA regulates stomatal movement by affecting ion transport in guard cells; yet in situ measurement of ABA-mediated dynamics of guard cell ion transport and the involvement of other phytohormones in regulating stomatal aperture under drought stress are still lacking. In this study, hydroponically grown plants of wild type barley Steptoe (WT) and its correspondent ABA-deficient barley mutant Az34 we ...
DOI:
10.1016/j.envexpbot.2021.104468

6. Arabidopsis cysteine-rich receptor-like protein kinase CRK33 affects stomatal density and drought tolerance

Author:
Arellano-Villagómez, Flor Cristina; Guevara-Olvera, Lorenzo; Zuñiga-Mayo, Víctor M.; E. Cerbantez-Bueno, Vincent; Verdugo-Perales, Mercedes; R. Medina, Humberto; De Folter, Stefan; Acosta-García, Gerardo
Source:
Plant signaling & behavior 2021 v.16 no.6 pp. 1905335
ISSN:
1559-2324
Subject:
stomatal conductance,   etc   ; Arabidopsis; behavior; drought tolerance; mutants; photosynthesis; plant development; protein kinases;     Show all 8 Subjects
Abstract:
... Cysteine-rich receptor-like protein kinases (CRKs) are transmembrane proteins containing two domains of unknown function 26 (DUF26) RLKs in their ectodomain. Despite that CRKs control important aspects of plant development, only few proteins have functionally been characterized. In this work, we analyzed the function of CRK33 by characterizing two insertional lines. The stomatal density and stomat ...
DOI:
10.1080/15592324.2021.1905335

7. Assessment of role of cuticular wax in adaptive physiological responses of Calotropis procera and Calotropis gigantea

Author:
Sharma, Priyal; Bala, N.; Saini, Mahesh Kumar; Jain, Ajay; Kothari, S. L.; Gour, Vinod Singh
Source:
Plant Physiology Reports 2021 v.26 no.2 pp. 368-373
ISSN:
2662-253X
Subject:
stomatal conductance,   etc   ; Calotropis gigantea; Calotropis procera; dry environmental conditions; epicuticular wax; geographical distribution; photosynthesis;     Show all 7 Subjects
Abstract:
... Development of the cuticular wax is an adaptive response toward different biotic and abiotic stresses in plants. Calotropis procera and Calotropis gigantea are perennial plants found in the arid regions, the geographical distribution pattern of the former and the latter is wide and restricted, respectively. In this study, the potential role of cuticular wax in adaptive responses of these species t ...
DOI:
10.1007/s40502-021-00585-1

8. Genotypic variation in intrinsic transpiration efficiency correlates with sugarcane yield under rainfed and irrigated field conditions

Author:
Natarajan, Sijesh; Basnayake, Jaya; Lakshmanan, Prakash; Fukai, Shu
Source:
Physiologia plantarum 2021 v.172 no.2 pp. 976-989
ISSN:
0031-9317
Subject:
stomatal conductance,   etc   ; genetic correlation; genetic variation; genotype; heritability; irrigated farming; irrigation; photosynthesis; sugarcane; variance; water stress;     Show all 11 Subjects
Abstract:
... Intrinsic transpiration efficiency (ᵢTE), the ratio of photosynthesis (A) to stomatal conductance (gₛ), is considered a useful trait for improving productivity; however, higher ᵢTE with high A is more desirable than that with low gₛ. This study dissects ᵢTE of 20 sugarcane genotypes to understand its relationship with total dry matter (TDM) and cane yield (TCH) under irrigated and rainfed conditio ...
DOI:
10.1111/ppl.13221

9. Metabolism of abscisic acid in two contrasting rice genotypes submitted to recurrent water deficit

Author:
Auler, Priscila Ariane; Nogueira do Amaral, Marcelo; Rossatto, Tatiana; Lopez Crizel, Rosane; Milech, Cristini; Clasen Chaves, Fabio; Maia Souza, Gustavo; Bolacel Braga, Eugenia Jacira
Source:
Physiologia plantarum 2021 v.172 no.2 pp. 304-316
ISSN:
0031-9317
Subject:
stomatal conductance,   etc   ; abscisic acid; biosynthesis; catabolism; drought; gene expression; genotype; highlands; rehydration; rice; transcriptional activation;     Show all 11 Subjects
Abstract:
... Drought is the main constrain for crops worldwide, however, the effects of recurrent water deficit remain still hidden. We analysed two rice genotypes, ‘BRS‐Querência’ (lowlands) and ‘AN‐Cambará’ (uplands), after 7 days of recurrent drought followed by 24 h of rehydration, hypothesising that genotypes grown in regions with different water availabilities respond differently to water deficits, and t ...
DOI:
10.1111/ppl.13126

10. Physio‐morphological, biochemical, and anatomical traits of drought‐tolerant and susceptible sorghum cultivars under pre‐ and post‐anthesis drought

Author:
Akman, Hayati; Zhang, Cankui; Ejeta, Gebisa
Source:
Physiologia plantarum 2021 v.172 no.2 pp. 912-921
ISSN:
0031-9317
Subject:
stomatal conductance,   etc   ; biomass; cultivars; drought; drought tolerance; osmotic pressure; photosynthesis; root growth; starch; water stress;     Show all 10 Subjects
Abstract:
... Understanding the physiological mechanisms that control drought tolerance in crop plants is vital for effective breeding. In this study, we characterized drought stress responses in four sorghum cultivars exhibiting differential levels of drought tolerance at pre‐ and post‐anthesis. Greenhouse‐grown plants were subjected to two types of drought treatment, water stress (WS) and desiccant‐induced wa ...
DOI:
10.1111/ppl.13242

11. Leaf physiological and anatomical responses of two sympatric Paphiopedilum species to temperature

Author:
Feng, Jing-Qiu; Wang, Ji-Hua; Zhang, Shi-Bao
Source:
Plant diversity 2021
ISSN:
2468-2659
Subject:
stomatal conductance,   etc   ; ; Paphiopedilum; leaf anatomy; leaf thickness; photosynthesis; species diversity; sympatry; temperature; China;     Show all 10 Subjects
Abstract:
... Paphiopedilum dianthum and P. micranthum are two endangered orchid species, with high ornamental and conservation values. They are sympatric species, but their leaf anatomical traits and flowering period have significant differences. However, it is unclear whether the differences in leaf structure of the two species will affect their adaptabilities to temperature. Here, we investigated the leaf ph ...
DOI:
10.1016/j.pld.2021.05.001

12. Difference in hydraulic resistance between planted forest and naturally regenerated forest and its implications for ecosystem restoration in subtropical karst landscapes

Author:
Yi, Ruzhou; Xu, Xianli; Zhu, Shidan; Zhang, Yaohua; Zhong, Feixia; Zeng, Xiangming; Xu, Chaohao
Source:
Journal of hydrology 2021 v.596 pp. 126093
ISSN:
0022-1694
Subject:
stomatal conductance,   etc   ; climate change; ecological restoration; hydraulic resistance; hydrology; karsts; reforestation; soil erosion; China;     Show all 9 Subjects
Abstract:
... Drought-induced plant hydraulic failure is expected to increase under climate change, and this negatively affects reforestation under the fragile karst environment in subtropical China. Compared with naturally regenerated forests, planted forests can rapidly increase vegetation coverage and have considerable economic benefits; however, their degree of resistance to drought-induced hydraulic failur ...
DOI:
10.1016/j.jhydrol.2021.126093

13. Field evidence reveals conservative water use of poplar saplings under high aerosol conditions

Author:
Wang, Bin; Wang, Zhenhua; Wang, Chengzhang; Wang, Xin; Li, Jing; Jia, Zhou; Li, Ping; Wu, Jin; Chen, Min; Liu, Lingli
Source:
Thejournal of ecology 2021 v.109 no.5 pp. 2190-2202
ISSN:
0022-0477
Subject:
stomatal conductance,   etc   ; aerosols; air temperature; canopy; leaves; sap flow; vapor pressure deficit; China;     Show all 8 Subjects
Abstract:
... Anthropogenic aerosols could alter multiple meteorological processes such as radiation regime and air temperature, thereby modifying plant transpiration. However, the lack of field observations at leaf and plant level hinders our ability to understand how aerosols could affect plant water use. Aerosol concentrations in northern China fluctuate periodically over a wide range. Taking advantage of th ...
DOI:
10.1111/1365-2745.13633

14. Nitrogen assimilation under osmotic stress in maize (Zea mays L.) seedlings

Author:
Mostafa, Hassan H. A.; Li, Baozhu; Zhu, Xiaohong; Song, Chun-Peng
Source:
Plant growth regulation 2021 v.94 no.1 pp. 87-99
ISSN:
0167-6903
Subject:
stomatal conductance,   etc   ; Zea mays; biomarkers; corn; nitrates; nitrogen; osmotic stress; photosynthesis; plant growth;     Show all 9 Subjects
Abstract:
... Nitrogen (N) is one of the most important nutrients affecting maize productivity. The effects of osmotic stress on nitrogen assimilation still remain unclear. The aim of this study is to characterize the physiological and biochemical responses to the N level and examine the expression of the genes involved in the N assimilation pathway under osmotic stress. Maize seedlings were supplied with three ...
DOI:
10.1007/s10725-021-00698-5

15. Zinc affects the physiology and medicinal components of Dendrobium nobile Lindl

Author:
Fan, Yijun; Jiang, Ting; Chun, Ze; Wang, Gang; Yang, Kaigang; Tan, Xueyan; Zhao, Juan; Pu, Shangrao; Luo, Aoxue
Source:
Plant physiology and biochemistry 2021 v.162 pp. 656-666
ISSN:
0981-9428
Subject:
stomatal conductance,   etc   ; Dendrobium nobile; ascorbate peroxidase; ascorbic acid; biosynthesis; photosynthesis; polyphenols; polysaccharides; superoxide dismutase; zinc;     Show all 10 Subjects
Abstract:
... The growth of Dendrobium nobile is often influenced by zinc. Here, D. nobile was regularly sprayed with different concentrations (0, 50, 100, 200, 400, 800, 1000, 2000 μmol L⁻¹) of zinc to study its effect on the growth and biosynthesis of medicinal components. Samples were taken at 0, 7, 14, and 21 days to detect physiological and medicinal components. The results showed that the net photosynthet ...
DOI:
10.1016/j.plaphy.2021.03.040

16. Temperature responses of photosynthesis and stomatal conductance in rice and wheat plants

Author:
Huang, Guanjun; Yang, Yuhan; Zhu, Lele; Peng, Shaobing; Li, Yong
Source:
Agricultural and forest meteorology 2021 v.300 pp. 108322
ISSN:
0168-1923
Subject:
stomatal conductance,   etc   ; carboxylation; forests; leaves; mesophyll; meteorology; models; rice; temperature; wheat;     Show all 10 Subjects
Abstract:
... The mechanisms for the different temperature (T) responses of leaf photosynthetic rate (A) and stomatal conductance (gₛ) have not been thoroughly elucidated, and the uncertainties and limitations facing the optimal-stomata models have not been systematically investigated. In the present study, the temperature responses of A, gₛ, and mesophyll conductance (gₘ) were studied in the selected rice and ...
DOI:
10.1016/j.agrformet.2021.108322

17. Impact of the colonization of Leifsonia xyli subsp. xyli in a susceptible sugarcane genotype on water status and physiological traits

Author:
Garcia, Fernando Henrique Silva; Barros, Timóteo Herculino da Silva; Coelho, Rubens Duarte; Laborde, Marie Caroline Ferreira; Azevedo, Ricardo Antunes; Lyra, Danilo Hottis; Kluge, Ricardo Alfredo
Source:
European journal of plant pathology 2021 v.159 no.4 pp. 839-849
ISSN:
0929-1873
Subject:
stomatal conductance,   etc   ; bacteria; carbon dioxide; fluorescence; gas exchange; genotype; plant pathology; proline; sugarcane; water content;     Show all 10 Subjects
Abstract:
... Leifsonia xyli subsp. xyli (Lxx) is a pathogenic bacterium that causes Ratoon Stunting Disease (RSD) in the sugarcane crop. Disease symptoms caused by Lxx have been associated with hormonal imbalance, which may be intensified when plants are under water deficit conditions. However, up to date there are no studies showing that Lxx colonization decreases water status in sugarcane. The objective of t ...
DOI:
10.1007/s10658-021-02209-8

18. The physiological response of the sweet cherry leaf to non-freezing low temperatures

Author:
Vosnjak, Matej; Kastelec, Damijana; Vodnik, Dominik; Hudina, Metka; Usenik, Valentina
Source:
Horticulture, environment and biotechnology 2021 v.62 no.2 pp. 199-211
ISSN:
2211-3452
Subject:
stomatal conductance,   etc   ; Prunus avium; biotechnology; chlorophyll; cultivars; environment; gas exchange; horticulture; leaves; photosynthesis; physiological response; temperature;     Show all 12 Subjects
Abstract:
... The effect of exposure of sweet cherry trees (Prunus avium L.) to non-freezing low temperature was investigated by measurements of chlorophyll fluorescence, gas exchange parameters and chlorophyll content in two experiments. In Experiment I, cultivars ‘Grace Star’ and ‘Schneiders’ were exposed to an average of 4.7 °C 21 and 27 days after full blooming (DAFB) and in Experiment II, cultivar ‘Grace S ...
DOI:
10.1007/s13580-020-00315-w

19. The Effects of Various Doses and Types of Effective Microorganism Applications on Microbial and Enzyme Activity of Medium and the Photosynthetic Activity of Scarlet Sage

Author:
Borowiak, Klaudia; Wolna-Maruwka, Agnieszka; Niewiadomska, Alicja; Budka, Anna; Schroeter-Zakrzewska, Anita; Stasik, Rafał
Source:
Agronomy 2021 v.11 no.3
ISSN:
2073-4395
Subject:
stomatal conductance,   etc   ; Salvia splendens; agronomy; beneficial microorganisms; carbon dioxide; chlorophyll; enzyme activity; oxidoreductases; photosynthesis; soil enzymes;     Show all 10 Subjects
Abstract:
... The aim of this study was to examine the influence of various types and levels of effective microorganism (EM) applications on scarlet sage. For this purpose, EMs were applied at the following three concentrations: 1:10, 1:50, and 1:100. Moreover, two types of treatments (spraying and watering) and a combination of the two were also examined. Photosynthetic intensity was analyzed, including the ne ...
DOI:
10.3390/agronomy11030603

20. Potential Plant–Plant Communication Induced by Infochemical Methyl Jasmonate in Sorghum (Sorghum bicolor)

Author:
Yamashita, Felipe; Rodrigues, Angélica Lino; Rodrigues, Tatiane Maria; Palermo, Fernanda Helena; Baluška, František; Almeida, Luiz Fernando Rolim de
Source:
Plants 2021 v.10 no.3
ISSN:
2223-7747
Subject:
stomatal conductance,   etc   ; Sorghum bicolor; carbon dioxide; fluorescence; leaves; methyl jasmonate; root anatomy;     Show all 7 Subjects
Abstract:
... Despite the fact that they are sessile organisms, plants actively move their organs and also use these movements to manipulate the surrounding biotic and abiotic environments. Plants maintain communication with neighboring plants, herbivores, and predators through the emission of diverse chemical compounds by their shoots and roots. These infochemicals modify the environment occupied by plants. Mo ...
DOI:
10.3390/plants10030485