Morphophysiological and Biochemical Responses of Lippia grata Schauer (Verbenaceae) to Water Deficit

Neto, Luiz Palhares; Souza, Lindomar Maria de; Morais, Marciana Bizerra de; Arruda, Emília; Figueiredo, Regina Célia Bressan Queiroz de; Albuquerque, Cynthia Cavalcanti de; Ulisses, Cláudia

doi:10.1007/s00344-019-09961-6

Cited by 8 publications

(1 citation statement)

References 54 publications

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“…According to Santos et al (2014), water unavailability stimulates the synthesis of soluble proteins so that osmotic adjustment occurs in plant cells, besides acting as a signal for water stress, favoring the stabilization of cell membranes. A similar behavior was observed in Lippia grata, which showed increased soluble protein content when subjected to water deficit (PALHARES NETO et al, 2020).…”

Section: Sources Of Variationsupporting

confidence: 78%

Water regimes on the morphophysiological and biochemical responses of Croton blanchetianus (Euphorbiaceae)

Sousa,

Andrade,

Morais

et al. 2024

Rev. Caatinga

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Plant species occurring in the Caatinga biome, when subjected to different water fluctuations, may have their morphophysiological and metabolic performance altered. Depending on the level of stress, the production of quality seedlings is affected. Therefore, the objective of this study was to evaluate the responses to different water availability levels in the morphophysiological and biochemical development of Croton blanchetianus Baill. The experiment was carried out in a greenhouse, evaluating four water regimes: 25%, 50%, 75% and 100% of pot capacity, and conducted in a randomized block design, with a total 5 blocks. The variables analyzed were: branch height and branch diameter; leaf area, number of leaves, root volume; root dry mass, shoot dry mass, total dry mass and root/shoot ratio; relative water content, proline, total soluble proteins, malondialdehyde, hydrogen peroxide, and photo synthetic pigments (chlorophyll ɑ, chlorophyll b, and carotenoids). The species Croton blanchetianus Baill. shows drought tolerance mechanisms, demonstrated by the reductions of growth, leaf area, dry mass of seedlings and photo synthetic pigments. It adjusts osmotically with increments in the production of proline, which acts in osmoprotection when there is water deficit, and in the production of proteins under the lower and higher water regime. The species has full development of seedlings under water regimes between 75% and 80% and adapts to different water fluctuations.

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Section: Sources Of Variationsupporting

confidence: 78%