Anatomical traits related to stress in high density populations of Typha angustifolia L. (Typhaceae)

Correa, Felipe; Pereira, Márcio Paulo; Madail, Rafael Hansen; Santos, Breno Régis; Barbosa, Sandro; Castro, Evaristo Mauro de; Pereira, Fabricio José

doi:10.1590/1519-6984.09715

Cited by 17 publications

(13 citation statements)

References 28 publications

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“…K + ions and osmolytes found in very low quantity because these plants are not facing any environmental stress. Water conservation is not the main strategy of Haroonabad population because its not facing the physiological drought caused by salinity ( Corrêa et al, 2017 ). This population exhibited less development of vascular tissues, aerenchyma and root cortex which indicates non-stressful environment of this habitat ( Mohamed et al, 2020a ).…”

Section: Discussionmentioning

confidence: 99%

Anatomical adaptations and ionic homeostasis in aquatic halophyte Cyperus laevigatus L. Under high salinities

Saleem

Hameed

Fatima

et al. 2021

Saudi Journal of Biological Sciences

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Salinity is extremely hazardous to agriculture worldwide and its expanding constantly. Soil of almost 100 countries facing salinity problem including Pakistan. Cyperus laevigatus also act as salinity indicator species is a naturally adapted halophyte dispersed in subtropical regions of world. Six populations of C. laevigatus were collected from different saline habitats to evaluate adaptations regarding anatomical and physiological characteristics. C. laevigatus is perfectly adapted to harsh environmental conditions like dry barren soils, saline lakes, hyper-saline wetlands and salt marshes. Ecological success of this species is due to plasticity in physiological and anatomical characteristics to adapt variable environmental conditions. C. laevigatus is a halophyte, exhibited increased biomass production in moderately saline habitat. Higher uptake of K + occurs to compensate the uptake of Na + ion contents, a striking feature of salt-tolerant and halophytic species. Accumulation of osmoprotectants like proline, free amino acids, soluble sugar and protein contribute significantly to osmotic adjustment. Stem thickness enhanced as salinity level of habitat increased to store water in parenchymatous tissues under physiological drought. Intensive sclerification in root cortex provide mechanical strength to plant as well as prevent the radial leakage of water. Well-developed aerenchyma, increased vascular bundle area, broader vessels, small and dense stomata are critical to cope with environmental hazards. Population of Jahlar lake showing maximum biomass production indicate that this species grows better in moderate salinities. Therefore, this species will prove very useful for revegetation of salt affected rangeland and prairies by direct growth of such halophytic ecotypes.

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Section: Discussionmentioning

confidence: 99%

Anatomical adaptations and ionic homeostasis in aquatic halophyte Cyperus laevigatus L. Under high salinities

Saleem

Hameed

Fatima

et al. 2021

Saudi Journal of Biological Sciences

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“…Typha domingensis plants are comprised of a shoot constituted only by leaves; underground rhizome which produces adventitious roots, the inflorescence has male and female leaves. The leaves of T. domingensis are comprised of one-layered epidermis on both adaxial and abaxial sides, palisade parenchyma (three to four layers) also on both abaxial and adaxial leaf surfaces and the central part shows aerenchyma chambers and collateral vascular bundles (Santos et al, 2015;Corrêa et al, 2016). Typha domingensis modifies its leaf anatomy and photosynthesis in response to environmental conditions such as phosphorus eutrophication (Santos et al, 2015;Corrêa et al, 2016) and population density .…”

Section: Introductionmentioning

confidence: 99%

“…The leaves of T. domingensis are comprised of one-layered epidermis on both adaxial and abaxial sides, palisade parenchyma (three to four layers) also on both abaxial and adaxial leaf surfaces and the central part shows aerenchyma chambers and collateral vascular bundles (Santos et al, 2015;Corrêa et al, 2016). Typha domingensis modifies its leaf anatomy and photosynthesis in response to environmental conditions such as phosphorus eutrophication (Santos et al, 2015;Corrêa et al, 2016) and population density . This species is tolerant and can accumulate high levels of nickel, zinc (Mufarrege et al, 2014), mercury (Lominchar et al, 2015), and cromium (Mufarrege et al, 2015), however, its tolerance to Cd remains unclear.…”

Section: Introductionmentioning

confidence: 99%

Cadmium tolerance of Typha domingensis Pers. (Typhaceae) as related to growth and leaf morphophysiology

et al. 2017

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Typha domingensis (cattail) is a native macrophyte known by its capacity to tolerate several heavy metals effects and the potential use for phytoremediation. However, in despite that cadmium (Cd) is one of the most toxic pollutants; its effects in T. domingensis biology remain uninvestigated. Thus, the objective of this study was to study the tolerance of T. domingensis to cadmium contamination by evaluating its growth, Cd uptake, leaf anatomy and gas exchange. The experiment was designed using three cadmium concentrations (0, 10 and 50 µM) and ten replicates for 90 days. The cadmium uptake, growth, gas exchange, chlorophyll content and leaf anatomy were evaluated. Data was submitted to ANOVA and Scott-Knott test for P<0.05. Typha domingensis accumulates Cd proportionally to its concentration on the solution and the content of this metal was higher in roots as compared to shoots. Plants showed no significant modifications on growth parameters such as the biomass production, number of leaves, number of clones and the biomass allocation to organs. The photosynthesis, transpiration and chlorophyll content were not modified by Cd. Most anatomical traits evaluated were not modified by the metal but the stomatal density and the proportion of vascular tissues were reduced under 50 µM of Cd. In despite, the leaf anatomy showed no toxicity evidences for any Cd level. The absence of growth reduction and the stability of anatomical and physiological traits give insight about the Cd tolerance of this species. Therefore, T. domingensis is able to overcome Cd toxicity and shows potential for phytoremediation. Keywords

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“…Phloem is specific to translocation of photosynthates from leaves to other plant organs, but presence of compact phloem may certainly aid in minimizing radial movement of water from xylem tissue. Large, loosely-packed parenchymatous cells of pith can store water (Corrêa et al, 2016), which is vital for survival in longer periods of drought. Another modification in NWB population is the prominent midrib, which is again specific to this population.…”

Section: Discussionmentioning

confidence: 99%

Water conservation strategies through anatomical traits in the endangered arid zone species Salvadora oleoides Decne.

Iqbal¹,

Hameed²,

Ahmad³

2021

Turk J Bot

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Salvadora oleoides Decne. (Salvadoraceae) is a facultative and mesomorphic xerophyte, well adapted to arid and semi-arid regions. Twelve populations were selected from different ecological regions of Punjab to investigate structural modifications that are essential for water conservation, by either improving water-storing capacity or preventing water loss from the plant body, hence, enabling this species to cope with environmental extremities. We observed significant plasticity in structural features, which ensures ecological success in a variety of environmental conditions. Huge variation was seen in various tissue systems, i.e., epidermis and epidermal appendages, collenchyma, size of internal oil glands, storage parenchyma, shape, size and arrangement of vascular tissue, intensity of sclerification, and stomatal size, shape and orientation. The desert populations showed additional parenchymatous layer under multilayered epidermis, xylem completely surrounded by phloem, broad metaxylem vessels, intensive sclerification in and outside vascular tissue, and numerous and small sized stomata on abaxial leaf surface. Population from salt-affected areas showed greater stem cross-sectional area, enlarge palisade parenchymatous cells, multilayered epidermis, large storage parenchyma, and sclerified vascular bundles. Roadside populations possessed sclerified vascular bundles and dense hairiness on leaf surface.

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Anatomical traits related to stress in high density populations of Typha angustifolia L. (Typhaceae)

Cited by 17 publications

References 28 publications

Anatomical adaptations and ionic homeostasis in aquatic halophyte Cyperus laevigatus L. Under high salinities

Anatomical adaptations and ionic homeostasis in aquatic halophyte Cyperus laevigatus L. Under high salinities

Cadmium tolerance of Typha domingensis Pers. (Typhaceae) as related to growth and leaf morphophysiology

Water conservation strategies through anatomical traits in the endangered arid zone species Salvadora oleoides Decne.

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