Abstract
ABSTRACT The nutritional requirements of native forest species can influence productivity. Thus, the understanding of these requirements enables us to optimize the use of inputs and reduce the environmental impacts inforest restoration projects. The present study aimed to evaluate changes in cellular ultrastructure and the anatomy of leaf laminae as well as observe visual signs of nutrient deficiency in young Cariniana estrellensis (Raddi) Kuntze plants, a forest species widely used in ecological restoration projects. The experiment was conducted in a greenhouse in random blocks with three replications of seven treatments using nutrient subtraction (I.e., control [plants grown with all nutrients], -N, -P, -K, -Ca, -Mg, and -S). The plants were harvested 135 days after the beginning of the treatments when the deficiency of the macronutrients resulted in visible abnormalities. Changes in the cell ultrastructure and structure of the chloroplasts, cytoplasm, and stromal lamellae were observed, as well as starch and lipid concentrations in the cytoplasm, intercellular spaces, and parenchymal cells. Changes in the cell ultrastructures, leaf laminae, and visual signs of nutrient deficiency hindered the development of young C. estrellensis plants; therefore, forest restoration projects that use this species in soils that require nutritional supplementation may have limited success in the absence of nutritional support.
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Claims 5
Claim · model-written summary
Macronutrient deficiency produced visible abnormalities after 135 days.
- Taxon
- Cariniana estrellensis (Raddi) Kuntze
Cariniana estrellensise2 - Treatment
- deficiency of the macronutrientse0
- Outcome
- visible abnormalitiese0
- Qualifier
- 135 dayse0
- Comparator
- controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants were harvested 135 days after the beginning of the treatments when the deficiency of the macronutrients resulted in visible abnormalities”
e1“control [plants grown with all nutrients], -N, -P, -K, -Ca, -Mg, and -S”
e2“young Cariniana estrellensis (Raddi) Kuntze plants”
Claim · model-written summary
Nutrient deficiency changed cell ultrastructure, chloroplasts, cytoplasm, and stromal lamellae.
- Taxon
- Cariniana estrellensis (Raddi) KuntzeCariniana estrellensise2
- Treatment
- -N, -P, -K, -Ca, -Mg, and -Se1
- Outcome
- cell ultrastructure and structure of the chloroplasts, cytoplasm, and stromal lamellaee0
- Direction
- Changese0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in the cell ultrastructure and structure of the chloroplasts, cytoplasm, and stromal lamellae were observed”
e1“control [plants grown with all nutrients], -N, -P, -K, -Ca, -Mg, and -S”
e2“young Cariniana estrellensis (Raddi) Kuntze plants”
Claim · model-written summary
Nutrient deficiency changed starch and lipid concentrations in leaf cells.
- Taxon
- Cariniana estrellensis (Raddi) KuntzeCariniana estrellensise2
- Organ / stage
- parenchymal cellse0
- Treatment
- -N, -P, -K, -Ca, -Mg, and -Se3
- Outcome
- starch and lipid concentrationse0
- Comparator
- controle3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“starch and lipid concentrations in the cytoplasm, intercellular spaces, and parenchymal cells”
e1“Changes in the cell ultrastructure and structure of the chloroplasts, cytoplasm, and stromal lamellae were observed, as well as starch and lipid concentrations”
e2“young Cariniana estrellensis (Raddi) Kuntze plants”
e3“control [plants grown with all nutrients], -N, -P, -K, -Ca, -Mg, and -S”
Claim · model-written summary
Deficiency-related leaf changes hindered development of young plants.
- Taxon
- C. estrellensisCariniana estrellensise0
- Outcome
- development of young C. estrellensis plantse0
- Direction
- hinderede0
- Qualifier
- Changes in the cell ultrastructures, leaf laminae, and visual signs of nutrient deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in the cell ultrastructures, leaf laminae, and visual signs of nutrient deficiency hindered the development of young C. estrellensis plants”
Claim · model-written summary
Restoration using this species on nutritionally deficient soils may have limited success without supplementation.
- Taxon
- Cariniana estrellensis (Raddi) KuntzeCariniana estrellensise1
- Outcome
- limited success in the absence of nutritional supporte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“forest restoration projects that use this species in soils that require nutritional supplementation may have limited success in the absence of nutritional support”
e1“young Cariniana estrellensis (Raddi) Kuntze plants”