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Agronomy
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Research on Crop Tolerance under Abiotic Stress from a Plant...
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Research on Crop Tolerance under Abiotic Stress from a Plant Metabolite Perspective

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Plant-Crop Biology and Biochemistry".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 1926

Special Issue Editor

Dr. Wenqing Zhao

E-Mail Website
Guest Editor
Key Laboratory of Crop Ecophysiology and Management, Ministry of Agriculture and Rural Affairs, College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
Interests: crop modeling; growth regulator; crop ecology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the era of climate change, the impact of various abiotic stresses such as drought, floods, high temperature, and the presence of a toxic amount of heavy metals or metalloids (as a result of anthropogenic activities) remains a serious global threat for agriculture. The incidences of such events are predicted to increase considerably in the near future. Metabolites are the end products of plant cellular processes. It is becoming increasingly clear that metabolities do more than just explicitly reflect the responses of crops to various disturbances; they also can provide critical signals, either through the effects of metabolic pathways or via the modulation of other regulatory proteins. Thus, it is imperative to understand the metabolites involved in a plant’s responses, tolerance and adaptability to abiotic stresses.

In this Special Issue, we mainly invite original research with the aim to exchange knowledge on any aspect related to the effects of abiotic stresses on crop production (including, but not limited to, crop growth and development, organ building, and yield quality) and measures to mitigate adversity stress, such as those related to variety selection, cultivation practices, and chemical regulation, from a metabolite perspective. Thus, this Special Issue will provide new views on inproving crop growth and production in these harsh environments.

Dr. Wenqing Zhao
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • crop tolerance
  • agricultural production
  • abiotic stress
  • plant metabolites

Published Papers (1 paper)

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Review

21 pages, 2682 KiB  
Review
Potential Momilactones in Rice Stress Tolerance and Health Advantages
by Ramin Rayee, La Hoang Anh, Tran Dang Khanh and Tran Dang Xuan
Agronomy 2024, 14(3), 405; https://doi.org/10.3390/agronomy14030405 - 20 Feb 2024
Cited by 1 | Viewed by 1584
Abstract
The aim of this review was to provide an updated outlook on the relevance of momilactones in rice during the 50 years since their discovery. Momilactones A (MA) and B (MB) were initially extracted from rice husks in 1973 and have since been [...] Read more.
The aim of this review was to provide an updated outlook on the relevance of momilactones in rice during the 50 years since their discovery. Momilactones A (MA) and B (MB) were initially extracted from rice husks in 1973 and have since been identified in various parts of the rice plant including leaves, bran, straw, roots, and root exudates. The biosynthesis of these compounds in rice initiates from geranylgeranyl diphosphate (GGDP) and progresses through several cyclization stages. The genes governing the synthesis of MA and MB are located on chromosome 4 within the rice genome. Concentrations of these compounds vary across different parts of the rice plant, ranging from 2 to 157 μg/g. Notably, Japonica rice varieties tend to have higher levels of MA and MB (157 and 83 μg/g, respectively) compared to Indica varieties (20.7 and 4.9 μg/g, respectively). There is a direct correlation between the levels of MA and MB and the increase in antioxidant activity, protein, and amylose content in rice grains. The production of these compounds is enhanced under environmental stresses such as drought, salinity, chilling, and UV exposure, indicating their potential role in rice’s tolerance to these conditions. MA and MB also demonstrate allelopathic, antibacterial, and antifungal properties, potentially improving the resilience of rice plants against biotic stressors. Although their antioxidant activity is modest, they effectively inhibit leukemia cells at a concentration of 5 µM. They also show promise in diabetes management by inhibiting enzymes like α-amylase (with IC50 values of 132.56 and 129.02 mg/mL, respectively) and α-glucosidase (with IC50 values of 991.95 and 612.03 mg/mL, respectively). The therapeutic qualities of MA and MB suggest that cultivating rice varieties with higher concentrations of these compounds, along with developing their derivatives, could benefit the pharmaceutical industry and enhance treatments for chronic diseases. Consequently, breeding rice cultivars with increased momilactone levels could offer substantial advantages to rice farmers. Full article
(This article belongs to the Special Issue Research on Crop Tolerance under Abiotic Stress from a Plant Metabolite Perspective)
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