Location and chemical composition of semi-permeable layer of forage seeds

Wang, Yanrong; Jahufer, Zulfi

doi:10.3329/bjb.v42i1.15802

Cited by 10 publications

(14 citation statements)

References 9 publications

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“…The semipermeable layer is firmly attached on the external portion of the seed coat in Roegneria nutans , Achnatherum inebrians , Hordeum vulgare var. nudum , Festuca sinensis , and Bromus inermis seeds [28]. Studies on Sorghum sudanense seeds show that the semipermeable layer is located on the inner side of the aleurone layer, close to the undifferentiated cells, and is, hence, endospermic [29].…”

Section: Discussionmentioning

confidence: 99%

The mechanism behind lack-of-effect of lanthanum on seed germination of switchgrass

2019

PLoS ONE

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Switchgrass ( Panicum virgatum L.) is a perennial warm-season C 4 grass identified as a model species for bioenergy feedstock production. Lanthanum (La) as a rare earth element can stimulate the physiological processes of plant growth. The purpose of this study was to investigate the effect of lanthanum on seed germination of switchgrass. However, no significant differences in seed germination were found. The energy dispersive X-ray analysis showed that abundant lanthanum deposits resided on the pericarp and testa of the seed while few lanthanum deposits were present on the aleurone and endosperm. This phenomenon demonstrates that a semi-permeable layer, which could restrict or impede solute exchange, while allowing the permeability of internal and external water and gas, may be located between the testa and aleurone. Light microscopy and histochemical analysis revealed that the main chemical composition of the semi-permeable layer would be expected to be suberin because the layer was stained yellow with aniline blue. The quantum chemical calculations predict that the intervals between adjacent carbon chains in suberin molecule are so small that lanthanum ([La(H 2 O) 8 ] 3+ ) cannot pass through the suberin molecule. In conclusion, the seed germination of switchgrass is not affected by lanthanum because the semi-permeable layer restricts the penetration of lanthanum into the embryo.

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Section: Discussionmentioning

confidence: 99%

The mechanism behind lack-of-effect of lanthanum on seed germination of switchgrass

2019

PLoS ONE

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“…This was because the seeds produced phenol and siderophores compounds that it can adhere to the surface of the seed coat that was semipermeable and bound to the seed coat that induces systemic plant resistance. Zhou et al (2013) reported that tomato seed coat was semipermeable and composed of fat, pectin, and cellulose, this was evidenced by coloring techniques and histochemical analysis because phenol and siderophores compounds in seeds indicate that the molecules of these compounds are chemically bound to fat molecules, pectin, cellulose. Moreover, another reason is that phenol and siderophore that bind to the seed elicit resistance gen of solanaceae plants against R. solanacearum and effectiveness of inducing systemic plant resistance.…”

Section: In Planta Assaymentioning

confidence: 99%

Selection and Formulation of Endophytic Bacteria as Plant Resistance Elicitor against Wilt Disease of Tomato

2019

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Wilt disease of Solanaceae caused by Ralstonia solanacearum reduce the crop quality and negatively affect the crop product. The objective of this research was to discover of endophytic bacteria formulation that effectively decreases bacterial which cause wilt disease on Solanaceae. The research consisted of purification of Ralstonia solanacearum, endophytic bacteria were obtained from the sample and the screening of endophytic bacteria using this following assay: antagonist assay, seedling assay and in planta assay. The results showed that in antagonist assay, the bacterial isolate code PS1, PS2, and PS8 could inhibit growth of R. solanacearum. From the seedling assay, it obtained that all of the isolates increased of percentage of germination, seed coating and powder formulation can decrease disease incidence of bacterial wilt disease.

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“…nudum contains lipids in the semipermeable layer of seed coat [9]. F. sinensis seed coat has pectine and seed coat.…”

Section: Antagonistic Test In Vitromentioning

confidence: 99%

Endophytic Bacteria as Biocontrol Agents of Tomato Bacterial Wilt Disease

Purnawati¹

2014

JTLS

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Ralstonia solanacearum is a tomato pathogen causing wilt disease which can lose crop production up to 100%. This problem also has economical impact to Indonesia, though controlling this pathogen has been done before. Biological control using endophytic bacteria is one of alternative control methods to support agriculture sustainability. The objective of these experiments are isolating endophytic bacteria taken from healthy tomato stems and root as well as investigating patogens as biocontrol agents of tomato bacterial wilt disease. Among 10 isolates found, only Ps1 and Ps8 can inhibit R. solanacearum based on antagonistic test in vitro using seed coat method and 4-7 mm inhibition zone forming. In vivo test was applied in green house in 30 days old of tomatoes using endophytic bacteria by the root soak technique. The result shows Ps1 and Ps8 within 15-16 days incubation period have suppressed 8.07%-9.19% pathogen attack.

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Location and chemical composition of semi-permeable layer of forage seeds

Cited by 10 publications

References 9 publications

The mechanism behind lack-of-effect of lanthanum on seed germination of switchgrass

The mechanism behind lack-of-effect of lanthanum on seed germination of switchgrass

Selection and Formulation of Endophytic Bacteria as Plant Resistance Elicitor against Wilt Disease of Tomato

Endophytic Bacteria as Biocontrol Agents of Tomato Bacterial Wilt Disease

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