著者

Gyana R. Rout Sunita Sahoo

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.3, pp.1-24, 2015 (Released:2019-03-29)

参考文献数

258

被引用文献数

353 464

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Iron is an essential micronutrient for almost all living organisms because of it plays critical role in metabolic processes such as DNA synthesis, respiration, and photosynthesis. Further, many metabolic pathways are activated by iron, and it is a prosthetic group constituent of many enzymes. An imbalance between the solubility of iron in soil and the demand for iron by the plant are the primary causes of iron chlorosis. Although abundant in most well-aerated soils, the biological activity of iron is low because it primarily forms highly insoluble ferric compounds at neutral pH levels. Iron plays a significant role in various physiological and biochemical pathways in plants. It serves as a component of many vital enzymes such as cytochromes of the electron transport chain, and it is thus required for a wide range of biological functions. In plants, iron is involved in the synthesis of chlorophyll, and it is essential for the maintenance of chloroplast structure and function. There are seven transgenic approaches and combinations, which can be used to increase the concentration of iron in rice seeds. The first approach involves enhancing iron accumulation in rice seeds by expressing the ferritin gene under the control of endosperm-specific promoters. The second approach is to increase iron concentrations in rice through overexpression of the nicotianamine synthase gene (NAS). Nicotianamine, which is a chelator of metal cations, such as Fe+2 and zinc (Zn+2), is biosynthesized from methionine via S-adenosyl methionine synthase. The third approach is to increase iron concentrations in rice and to enhance iron influx to seeds by expressing the Fe+2- nicotianamine transporter gene OsYSL2. The fourth approach to iron biofortification involves enhancing iron uptake and translocation by introducing genes responsible for biosynthesis of mugineic acid family phytosiderophores (MAs). The fifth approach to enhance iron uptake from soil is the over expression of the OsIRT1 or OsYSL15 iron transporter genes. The sixth approach to enhanced iron uptake and translocation is overexpression of the iron homeostasis-related transcription factor OsIRO2. OsIRO2 is responsible for the regulation of key genes involved in MAs-related iron uptake. The seventh approach to enhanced iron translocation from flag leaves to seeds utilizes the knockdown of the vacuolar iron transporter gene OsVIT1 or OsVIT2. The present review discusses iron toxicity in plants with regard to plant growth and metabolism, metal interaction, iron-acquisition mechanisms, biofortification of iron, plant-iron homeostasis, gene function in crop improvement, and micronutrient interactions.

著者

Marín-Tello Carmen Zelada-Castillo Lorena Vásquez-Arqueros Alexander Vieira Amandio Siche Raúl

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.8, pp.323-342, 2020 (Released:2020-12-06)

参考文献数

143

被引用文献数

3 13

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The coffee shell or pulp is the first by-product obtained from the processing of coffee. It represents approximately 40 to 50% of the coffee berry’s weight. Currently, in much of the industry, it is a waste product with a major environmental impact on the water and soil, flora and fauna, and a problem to nearby populations in terms of odor and proliferation of insects and pathogenic microorganisms. This is a review that compiles alternative uses of coffee pulp in agriculture, food and nutrition, medicine and biotechnology. In food and agriculture, for example, the pulp can be used as organic fertilizer to improve degraded soils, in the biological control of plant pathogens, as food or substrate for microorganisms and worms, as feed for chickens, sheep, goats, fish and other animals, and in the productions of foods and beverages for human consumption. In biotechnology, coffee pulp can be used in the cultivation of edible fungi, production of enzymes, substrate for caffeine degrading microorganisms and for microorganisms that produce natural fungicides. Although many of these applications have been proposed and studied, there are also several novel uses that are in the early stages of development; for example, the use of pulp bioactive compounds to make food supplements, or to increase dietary fiber contents in foods and beverages, as well as for the production of biocontainers and biopackaging, alternatives to plastics and their serious environmental impact.

著者

Fernando Mata

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.11, pp.217-233, 2023 (Released:2023-09-15)

参考文献数

76

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The stratified British sheep production system is a three-tier production system that includes the hill, the upland, and the lowland subsystems. In the hills, pure-breed ewes are kept, and draft five-year ewes are brought down to the uplands where they can still have a couple of years of productive life. In the uplands, the hill ewes are mated with an upland sire. This first cross brings together hardiness, and mothering abilities to produce dams of the Prime Lamb. These are brought further down to the Lowlands where they are mated to a Terminal Sire to produce the Prime Lamb. The system takes advantage of maternal and individual heterosis and complementarity of breeds. The system marked the British sheep industry of the 20th century, however, the new challenges faced by the industry may end this unique production system. The objective of this revision is to construct a single document easily accessible to scholars explaining the Stratified British Sheep Production System.

著者

Natsuki Hayami Sachi Sri Kantha

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.5, pp.83-99, 2017 (Released:2019-03-29)

参考文献数

202

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The Nobel Prizes awarded in two appropriate science categories (chemistry as well as physiology or medicine) and the peace category since 1901 were studied to evaluate the plant science related research that had received recognition. We also checked the Nobel prize nomination database for the two appropriate science categories to verify the number of scientists (with research reputation on plant-based studies) who were nominated, but were unlucky in the eventual selection process. The focus of this review is research on plant materials in a wider sense (including that of photosynthetic bacteria), that received Nobel prize recognition. Until 2017, Nobel Prizes for research in plant sciences have been awarded 17 times to 20 scientists. Pioneering work on five major research themes, namely, (1) chlorophyll and photosynthesis, (2) elucidation of the structure of vitamins (carotene, thiamin, ascorbic acid and vitamin K), (3) use of radioisotopes for metabolism studies, (4) plant natural product chemistry and (5) plant genetics had received Nobel award recognition so far. For future recognition, Nobel laureates such as Melvin Calvin and Barbara McClintock had opined the worth of interdisciplinary teams with expertise in botany for trend-setting new discoveries in plant science research. We predict that pioneering studies along the line of plants that can grow in a dessert or sea, plants which can be an enriched source of fuel and hydrocarbon-like materials may have potential to be considered for a Nobel Prize for plant science research.

著者

Sachini P. Ariyachandra Iustus S. Alwis Eranga M. Wimalasiri

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.11, pp.20-35, 2023 (Released:2023-02-15)

参考文献数

71

被引用文献数

3

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Growing industrialization and urbanization are seriously polluting the environment with hazardous heavy metals. Heavy metal pollution has caused major consequences on human health and the environment on a global level. Economically effective and environmentally friendly methodologies and technologies are utilized globally to remediate heavy metal-contaminated soils and wastewater. Phytoremediation is one of the potential technologies for the in-site treatment of heavy metal-contaminated soil and water. Over 163 plant species with the ability of metal concentration and tolerance have been discovered in the world as possible phytoremediators. Among the plant species used for phytoremediation, Cyprus rotundus is a safe and inexpensive phytoremediation agent that has a high capacity to accumulate heavy metals in its plant parts. This review provides a general overview of the phytoremediation potential of Cyperus rotundus through reviewing relevant originally published research articles. For the study, a literature survey was conducted by using articles from top academic research databases including ScienceDirect, JSTOR, Google Scholar, and PubMed. A total number of 71 originally published articles related to phytoremediation and heavy metal phytoremediation of Cyperus rotundus were selected for the review. According to previous studies, Cyperus rotundus is capable of extracting and accumulating As, Cd, Pb, Rb, Sn, and Zn in its roots and shoots when the soil is highly polluted with the aforementioned heavy metals. Moreover, Cypreus rotundus indicate a considerable value of bioconcentration factors and translocation factors to different heavy metals, whereas it emphasizes the possible remediation of heavy metals through this plant species. Consequently, Cyperus rotundus could be identified as a possible hyperaccumulator and Phytostabilizer for most heavy metals for upcoming phytoremediation studies.

著者

Putri Wulandari Zainal Fawzan Sigma Aurum Teppei Imaizumi Manasikan Thammawong Kohei Nakano

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.10, pp.56-67, 2022 (Released:2022-03-15)

参考文献数

52

被引用文献数

3

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Recently, metabolomics has grown rapidly in the fields of food and agriculture. Complex physiological changes after harvest prompted the development of a new metabolomic analytical method offering more profound insight into these changes. This review presents the feasibility of a metabolomics approach to elucidate physiological changes during ripening, senescence, and disorders. Additionally, we introduce metabolomics for the authentication of agricultural products. Confirmation of species, varieties, and geographical origin via metabolomics can be useful to tackle adulteration and certify quality.

著者

Mohammad N. Masum Kosei Yamauchi Tohru Mitsunaga

出版者

The United Graduate Schools of Agricultural Sciences, Japan

雑誌

Reviews in Agricultural Science (ISSN:2187090X)

巻号頁・発行日

vol.7, pp.41-58, 2019 (Released:2019-04-19)

参考文献数

88

被引用文献数

16 59

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Melanin, a major pigment in mammalian skin, is known to protect the skin against harmful effects of ultraviolet (UV) irradiation, oxidative stress, and DNA damage. The accumulation or over production of melanin can cause esthetic problem as well as serious diseases related to hyperpigmentation. Tyrosinase, is a copper-containing enzyme which catalyses two rate–limiting reactions in melanogenesis: the hydroxylation of monophenols to o-diphenols, and the oxidation of o-diphenols to o-quinones. Therefore, inhibition of tyrosinase, is the prime target for researchers to regulate melanin production. Tyrosinase inhibitors with high efficacy and less adverse side effects, have huge demand in cosmetic and medicinal industries due to their preventive effect on pigmentation disorders as well as skin-whitening effect. In this review, we focus on the recent advances of tyrosinase inhibitors from all sources, including synthesized compounds, natural products, virtual screening and structure-based molecular docking studies; by categorized into two parts, mushroom and human tyrosinase inhibitors.